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Применить Всего найдено 28602. Отображено 200.
20-03-2008 дата публикации

ПОДШИПНИК КАЧЕНИЯ С МАСЛЯНЫМ ДЕМПФИРОВАНИЕМ

Номер: RU2319870C2
Принадлежит: СНЕКМА МОТОРС (FR)

Изобретение относится к подшипнику качения, снабженному смазывающей пленкой, находящейся под давлением, действующей по типу «выдавливаемой пленки», который предназначен для использования преимущественно в авиации. Подшипник качения турбомашины для формирования опоры вращения первого вала (4) относительно второго вала (6) содержит множество элементов (12) качения, установленных между внутренней кольцевой обоймой (14), установленной на втором валу (6), и наружной кольцевой обоймой (16), установленной на первом валу (4), причем внутренняя поверхность обоймы (16) и наружная поверхность обоймы (14) ограничивают между собой кольцевое пространство, масляную пленку (18), формируемую на уровне кольцевой поверхности контакта между обоймой (16) и валом (4) и ограниченную с боковых сторон уплотнительными кольцами (20, 22). Подшипник также содержит один питающий канал (34), проходящий насквозь через обойму (14), причем канал (34) сообщается с контуром подачи масла и выходит на уровень внутренней дорожки ...

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27-05-2016 дата публикации

УЗЕЛ ПОДШИПНИКА КАЧЕНИЯ

Номер: RU2585125C2
Принадлежит: НТН КОРПОРЕЙШН (JP)

Изобретение относится к узлам подшипников качения и, в частности, к конструкции сепаратора, направляющего элементы качения, для узла подшипника качения, при этом конструкция адаптирована для подачи консистентной смазки из внутреннего проставочного кольца к сепаратору. Узел подшипника качения содержит внутреннее кольцо (2), имеющее поверхность (2a) дорожки качения на его наружной периферии, внутреннее проставочное кольцо (3), которое находится в контакте с торцевой стороной кольца (2) и вращается совместно с ним, наружное кольцо (4), имеющее поверхность (4a) дорожки качения на его внутренней периферии, некоторое количество элементов (6) качения, расположенных между поверхностью (2a) и поверхностью (4a), и сепаратор (8), расположенный между кольцом (2) и кольцом (4) и имеющий некоторое количество карманов (10) для размещения элементов (6) качения, в котором используется центробежная сила для подачи консистентной смазки из кольца (3) к сепаратору (8). Радиальные каналы, проходящие от стороны ...

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10-03-2009 дата публикации

СПОСОБ МАГНИТНОЙ РАЗГРУЗКИ ТЕЛ КАЧЕНИЯ ОТ ДЕЙСТВИЯ ЦЕНТРОБЕЖНЫХ СИЛ В ОПОРАХ ВРАЩЕНИЯ И ОПОРА ВРАЩЕНИЯ ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ (ВАРИАНТЫ)

Номер: RU2348839C2

Изобретения относятся к широкому спектру отраслей народного хозяйства, в частности, могут быть использованы в области станкостроения, метрологии, оптике, медицине, электронной промышленности, а также могут найти широкое применение в опорных узлах, преимущественно высокооборотных: приборов точной механики; опорах шпинделей станков, преимущественно прецизионных, предназначенных для промышленной реализации современных микро- и нанотехнологий. Способ магнитной разгрузки тел качения от действия центробежных сил в опорах вращения заключается в следующем. Магнитную систему формируют на основе стандартных конструктивных элементов непосредственно опоры и магнитной вставки, функционально являющейся источником постоянного магнитного поля. Магнитную вставку кинематически связывают с одним из базовых элементов опоры, функционально являющимся кольцом подшипника качения, и размещают в области тел качения со стороны оси вращения опоры. Для формирования магнитной системы, из стандартных элементов опоры, ...

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03-07-2019 дата публикации

ПОДШИПНИК ДЛЯ НАСОСА И СПОСОБ МОДЕРНИЗАЦИИ ПОДШИПНИКА ДЛЯ НАСОСА

Номер: RU2693609C2

Изобретение относится к подшипнику для насоса с валом (10), вращающимся вокруг осевого направления (А), который содержит корпус (2) и крышку (3) подшипника, прикрепленную к корпусу (2), структуру (4) подшипника для поддержки вала (10) насоса (100), резервуар (22) для смазочного материала и смазочное кольцо (5) для транспортировки смазочного материала и для подачи смазочного материала на структуру (4) подшипника. Смазочное кольцо (5) выполнено с возможностью приведения в движение вращающимся валом (10). Подшипник также содержит удерживающий элемент (7), зафиксированный относительно корпуса (2) или крышки (3), при этом удерживающий элемент сконструирован и расположен так, чтобы ограничивать движение смазочного кольца (5) по меньшей мере в осевом направлении (А). Удерживающий элемент (7) расположен ниже вала (10) с той же стороны, что и резервуар (22). Кроме того, предлагается способ модернизации подшипника для насоса. Технический результат: создание подшипника для насоса с валом, который ...

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10-04-2010 дата публикации

ПОДШИПНИКОВЫЙ УЗЕЛ С ДВОЙНЫМ ВПРЫСКОМ ЖИДКОЙ СМАЗКИ И ЛЕТАТЕЛЬНЫЙ АППАРАТ, СОДЕРЖАЩИЙ, ПО МЕНЬШЕЙ МЕРЕ, ОДИН ТАКОЙ УЗЕЛ

Номер: RU2386059C2
Принадлежит: СНЕКМА (FR)

Изобретение относится к подшипниковому узлу и к летательному аппарату, оснащенному турбовальным двигателем, содержащим подшипниковый узел. Подшипниковый узел (4) содержит неподвижную деталь (6), вращающуюся деталь (8) и подшипник (10), вставленный между деталями (6, 8). Подшипник содержит внутреннее кольцо (14) и внешнее кольцо (12), каждое из которых имеет беговую дорожку (16, 18), контактирующую с элементами (20) качения. Кольцо (12) закреплено на детали (6), а кольцо (14) - на вращающейся детали (8). Сквозь кольцо (12) проходят дренажные отверстия (24). Узел (4) также содержит первый инжектор (32), предназначенный для подачи неиспользуемой повторно жидкой смазки, и второй инжектор (42), автоматически питаемый жидкой смазкой, дренированной через собирающее средство (38) для сбора жидкой смазки, выходящей из отверстий (24). Средство (38) сообщается с контуром (40) повторного впрыска, соединенным с инжектором (42), и с обводным контуром (48), предназначенным для удаления избытка дренированной ...

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01-08-2022 дата публикации

ПОДШИПНИК С ТИКСОТРОПНЫМ АКТИВАТОРОМ

Номер: RU2777131C1

Изобретение относится к узлам трения, в частности шариковым радиальным и радиально-упорным подшипникам, смазываемым пластичными смазочными композитами. Подшипник с тиксотропным активатором содержит внутреннее кольцо (1), внешнее кольцо (2), сепаратор (3), тела качения (4). По меньшей мере с одной торцевой стороны подшипника между внешним (2) и внутренним (1) кольцами смонтирован тиксотропный активатор, выполненный в виде шайбы (5), на внутренней поверхности которой, обращенной в сторону тел качения (4) между упомянутой шайбой (5) и сепаратором, выполнены выступы (6), с возможностью механического воздействие на смазку, находящуюся в полостях между телами качения (4) и шайбой (5). Технический результат: обеспечение возможности снижения вязкости смазочных тиксотропных композитов в подшипнике во время его работы и увеличение срока его службы. 5 ил.

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20-09-2005 дата публикации

ПОДШИПНИК КАЧЕНИЯ

Номер: RU2260723C1

Изобретение относится к устройствам повышения долговечности подшипников в процессе работы машин или механизмов. Существенным отличием предлагаемого устройства является подбор индивидуальных режимов для узла трения трибосистемы. В подшипнике предусмотрено замыкание анода на детали подшипника, в зону трения накладывается ультразвук. Скорость восстановления изнашиваемых частей трибосистемы регулируют изменением концентрации, токопроводности, температуры и состава ионообразующей жидкости путем изменения количества, конструкции и материала растворяемых анодов. Для получения необходимого качества поверхностей трения регулируют давление во внутренней полости подшипника, скорость перемещения трущихся частей подшипника. Величина тока в цепи анод - детали подшипника задается в программируемом режиме от постоянного до импульсного с изменяемой частотой, скважностью и амплитудой. В систему введены датчики, регистрирующие условия работы подшипника, его скорость, нагрузку, температуру и т.д. Источник ...

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27-07-1997 дата публикации

ПОДШИПНИК КАЧЕНИЯ

Номер: RU2085772C1

Использование: в подшипниках качения с твердой смазкой. Сущность изобретения: подшипник качения содержит наружное и внутреннее кольца, в которых выполнены желоба с дорожками качения, сепаратор, размещенные в упомянутых дорожках и между разделительными элементами сепаратора тела качения, а также расположенные с зазором в желобе скребки для перемещения порошка твердосмазочного материала. Скребки выполнены как одно целое с сепаратором из одного с ним твердого антифрикционного материала, преимущественно из чугуна. Наружное кольцо выполнено составным из двух кольцевидных частей, соединенных между собой слоем склеивающего вещества со свойствами многократного склеивания. Это упрощает конструкцию подшипника качения. 2 з.п. ф-лы, 3 ил.

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27-03-1997 дата публикации

ПОДШИПНИКОВЫЙ УЗЕЛ

Номер: RU2076253C1

Использование: в подшипниковых узлах с автоматической подачей смазки. Сущность: подшипниковый узел содержит корпус с масляной ванной, подшипник и самозахватывающее устройство для смазки с каналами подвода и отвода смазки к подшипнику. Устройство включает размещенное на валу соосно подшипнику рабочее колесо с подающим средством и охватывающие подающее средство уплотняющие кольца. Одно из колец смонтировано на подшипнике, другое расположено на торце подающего средства и выполнено в виде насаженных на обод колеса плоских лопастей с выемками для захвата смазки. Поперечное сечение выемки эквивалентно поперечному сечению торцевого канала уплотняющего кольца. Такое выполнение обеспечивает повышение эксплуатационной надежности и экономичности. 3 з.п. ф-лы, 5 ил.

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18-03-2019 дата публикации

УСТРОЙСТВО ДЛЯ СМАЗКИ ПОДШИПНИКОВ РОТОРНОЙ МАШИНЫ

Номер: RU2682294C1

Изобретение относится к области машиностроения и двигателестроения и может быть использовано в подшипниковых узлах с консистентной смазкой, например в опорах роторов турбомашин с консистентной смазкой. Устройство для смазки подшипников роторной машины включает подшипник, установленный внутренним кольцом на полый вал, а наружным кольцом контактирующий с корпусом, активаторы, симметрично установленные с двух сторон от подшипника. Между каждым активатором и подшипником имеется резервуар с консистентной смазкой. Каждый активатор содержит подвижную в осевом направлении втулку, которая зафиксирована в окружном направлении относительно неподвижной крышки корпуса направляющими штифтами, на которых установлены пружины, контактирующие с одной стороны с торцом неподвижной втулки, с другой стороны с подвижной втулкой. В неподвижной крышке корпуса расположен осевой активный магнит, контактирующий свободным торцом с подвижной втулкой, расположенной в свою очередь с минимальным зазором относительно вращающегося ...

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10-02-2003 дата публикации

СПОСОБ СМАЗКИ ПОДШИПНИКОВОГО УЗЛА ТРАНСПОРТНОГО РОЛИКА

Номер: RU2198328C1

Изобретение относится к области машиностроения. Способ смазки подшипникового узла транспортного ролика заключается в том, что жидкую смазку из маслонакопителя узла транспортного ролика 6 подают в зону трения узла 3 через капиллятор 7 и сепаратор - центробежный распределитель 8 и удерживают ее там посредством уплотнительных элементов 4. Капиллятор неподвижно связывают с маслонакопителем и подвижно с сепаратором - центробежным распределителем подшипникового узла. Сепаратор - центробежный распределитель выполняют с отверстиями 9 на торцевой поверхности 10 в зоне подвижного контакта 11 с капиллятором. Количество отверстий - не менее двадцати четырех, располагают отверстия в три ряда под углом 25÷35o по отношению к оси вращения подшипникового узла. Технический результат: повышение срока службы подшипникового узла транспортного ролика, снижение затрат на его обслуживание и ремонт. 1 ил.

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10-05-2002 дата публикации

ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU2000115422A
Принадлежит:

... 1. ДВС, содержащий уравновешивающий вал, представляющий собой совокупность полуцилиндров с общей диаметральной плоскостью, установленный на подшипниках качения в гнездах, расположенных в боковых стенках картера, отличающийся тем, что каждое из гнезд подшипников уравновешивающего вала оснащено масляной полостью, выполненной соосно подшипнику, по оси уравновешивающего вала через его цапфы и прилегающие к ним полуцилиндры выполнены продольные каналы, сообщенные с одной стороны с масляной полостью, а с другой - через окна в диаметральной плоскости уравновешивающего вала с полостью картера. 2. ДВС по п. 1, отличающийся тем, что каналы оснащены маслозаходной резьбой.

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10-03-2006 дата публикации

РОЛИКОВЫЙ СФЕРИЧЕСКИЙ ДВУХРЯДНЫЙ ПОДШИПНИК

Номер: RU2271483C1

Изобретение относится к области машиностроения, в частности к подшипникам качения, работающим в условиях вибрации, и может быть использовано, например, в грохотах, молотковых мельницах, выбивных решетках. Роликовый сферический двухрядный подшипник содержит наружное кольцо со сферической дорожкой качения, внутреннее кольцо с двумя тороидальными дорожками качения, бочкообразные ролики и массивный сепаратор с фланцем, содержащим два противоположных плоских участка, параллельных друг другу. На наружной поверхности фланца сепаратора выполнены канавки. Сепаратор может быть выполнен цельным либо состоять из двух полусепараторов. Канавки могут быть выполнены продольными, спиральными, шевронными. Технический результат - повышение долговечности подшипника для работы в условиях вибрации как при жидкой, так и при консистентной смазке за счет улучшения смазывания наружной поверхности фланца сепаратора, контактирующей с дорожкой качения наружного кольца. 5 з.п. ф-лы, 6 ил.

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10-10-1996 дата публикации

ПОДШИПНИК КАЧЕНИЯ

Номер: RU94045003A
Автор: Гиляров П.П.
Принадлежит:

Подшипник качения, содержащий наружное и внутреннее кольца, в которых выполнены желоба с дорожками качения, сепаратор, размещенные в дорожках и между разделительными элементами сепаратора тела качения, а также расположенные с зазором в желобе скребки для перемещения порошка твердосмазочного материала. Новым в подшипнике качения является то, что представляющие собой одно целое с выполненным с возможностью свободного перемещения в нем тел качения в радиальных и в осевых направлениях сепаратором из одного с ним твердого антифрикционного материала, преимущественно из чугуна, скребки для перемещения порошка твердосмазочного материала расположены в желобе, кольцевидная полость которого по всей окружности его дорожки качения сообщается с шайбовидной полостью с расположенным в ней шайбовидным слоем склеивающего вещества со свойствами многократного склеивания. Это упрощает конструкцию подшипника качения.

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27-10-1996 дата публикации

ПОДШИПНИКОВЫЙ УЗЕЛ

Номер: RU95100524A
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Подшипниковый узел, состоящий из двух радиально-упорных однорядных конических роликоподшипников, установленных на одном валу, имеющих статорные кольца, одно из которых жестко закреплено на корпусе, причем кольцо другого подшипника установлено с зазором относительно статора с возможностью перемещения в радиальном направлении, а в осевом направлении перемещение кольца ограничено упором. Роликоподшипник, статорное кольцо которого жестко закреплено на корпусе, может быть выполнен радиально цилиндрическим.

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07-02-1982 дата публикации

Подшипник качения

Номер: SU903607A1
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Подшипниковый узел

Номер: SU1663258A1
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Изобретение относится к машиностроению, в частности к системам смазки подшипниковых узлов. Цель изобретения - повышение эксплуатационных качеств путем исключения принудительной подачи масла. Подшипниковый узел состоит из корпуса 1, вала 2, подшипника 3 качения и подпиточного смазочного средства 4 в виде вкладыша из пористого материала, пропитанного маслом и установленного в полость 5. Полость 5 соединена с полостью подшипника каналами 6, образованными в наружном кольце подшипника в виде капилляров. Перенос масла из полости подпиточного средства 4 в подшипник осуществляется за счет поверхностных сил сцепления масла с металлом, расстекания по нему. Пористый материал вкладыша выполняет роль аккумулятора масла. 1 ил.

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30-06-1981 дата публикации

Подшипниковый узел

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Шпиндельный узел

Номер: SU1158792A1
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ШПИНДЕЛЬНЫЙ УЗЕЛ, содержащий установленные в корпусе и смонтированные на валу конические роликоподшипники и размещенное меяду их наружными кольцами распределительное кольцо с наклонными маслоподводящими каналами, отличающийся тем, что, с целью повьшения долговечности шпиндельного узла за счет образования устойчивой масляной пленки на дорожках качения, угол наклона маслоподводящих каналов выполнен равным углу наклона образующей конуса внутренней поверхности наружного кольца конического роликоподшипник а.

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15-07-1987 дата публикации

Подшипниковый узел вертикального вала

Номер: SU1323779A1
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Изобретение относится к машиностроению , в частности к нодшипниковым узлам вертикальных валов. Целью изобретения является повышение работоспособности подшипникового узла. На вертикальном валу между подшипниками вер.хнего и нижнего ярусов размешен маслоподъемник (/ЧП). МП выполнен в виде полого усеченного конуса с размешением большего основания в сторону нодшинника верхнего яруса. В зоне меньшего основания МП смонтированы заборн ики смазки. При врашении вала заборники нодают смазку из масляной ванны на внутренюю поверхность усеченного конуса. Под действием центробежных с сил смазка поднимается к подшипнику верхнего яруса, что обеспечивает интенсивное смазывание этого подшипника. 1 з.п. ф-лы, 4 ил. S (Л оо ю оо ;о ...

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30-09-1985 дата публикации

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Номер: SU1182210A1
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ПОДШИПНИК КАЧЕНИЯ, содержащий кольца и установленные между ними ролики, контактирующие торцовыми поверхностями с упорными буртами по меньшей мере одного из колец, а также V -образные отверстия для смазки, отличающийся тем, что, с целью повышения срока службы, отверстия для смазки выполнены во внутреннем кольце и расположены наклонно к рабочей боковой поверхности бурта, а расстояние между центрами отверстий на рабочей поверхности бурта равно Ln 2|bph-V где Dp - диаметр тела качения; fi - высота от дорожки качения внутреннего кольца подшипника до оси отверстия на рабо- § чей поверхности бурта. ГО Ю (nriV ...

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Устройство для заполнения подшипников антифрикционным материалом

Номер: SU1530857A1
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Изобретение относится к машиностроению и предназначено для закладки антифрикционного самосмазывающего материала в подшипник. Цель изобретения - повышение качества заполнения подшипников антифрикционным самосмазывающим материалом. Устройство содержит нижнюю плиту 22 и верхнюю плиту 19, между которыми устанавливается заполняемый подшипник. Верхняя плита стыкуется с фланцем 11 средства нагнетания смазки. Механизм стыковки выполнен в виде пальцев 20, опорных планок 18 и приводных ползунов 21. Ползуны 21 имеют верхние и нижние продольные направляющие, размещенные в ответных пазах верхней плиты и планок. Горизонтальное перемещение ползунов 21 обеспечивает вертикальное перемещение опорных планок 18 по пальцам 20. Опорные планки 18 связаны с фланцем 11 средства нагнетания смазки. Это обеспечивает стыковку средства нагнетания смазки и верхней плиты устройства, что предохраняет от вытекания смазки на поверхность верхней плиты и приводит к качественному заполнению подшипников. 2 з.п. ф-лы, 4 ил.

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Устройство для смазки масляным туманом подшипников качения

Номер: SU1504393A1
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Изобретение относится к машиностроению и предназначено для смазки высокоскоростных и тяжелонагруженных опор качения. Цель изобретения - снижение виброактивности. На валу 1 перед подшипником качения смонтирована втулка 2 с вмонтированным в нее многосекционным постоянным магнитом, набранным из отдельных кольцевых магнитов, например 5 и 4, намагниченных в радиальном направлении. Соседние кольцевые магниты разделены немагнитными прокладками. В зазор, образованный валом 1 и втулкой 2, помещена ферромагнитная жидкость 6. Благодаря наличию значительных градиентов магнитной индукции у краев втулки ферромагнитная жидкость удерживается в зазоре. Источником подачи масляного тумана смазка подается в полость между валом 1 и корпусом 7. Вал, вращаясь, вовлекает во вращение втулку 2 с лопастями, направление вращения и скорость которой совпадают со скоростью и направлением вращения вала. В зоне перед подшипником качения масляному туману сообщается вихревое движение. Устройство позволяет улучшить условия ...

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30-01-1989 дата публикации

Подшипниковый узел со смазкой масляным туманом

Номер: SU1455078A1
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Изобретение относится к машиностроению и может использоваться для подшипниковых узлов в станкостроении. Цель изобретения - повышение долговечности подшипникового узла. Устройство содержит корпус 1, статор 2, ротор 3, подшипник качения 4, чашеобразную втулку 5, крьш1ку 6 и устройство 7 предварительного натяга. В роторе выполнены осевой канал и радиальные отверстия. Крьш1ка имеет аксиальный патрубок 8 и отверстие 9. Втулка у с осевыми отверстиями 10 установлена на патрубке и образует зазоры 11 с подшипником и 12 с корпусом.При этом суммарная площадь осевых отверстий втулки больше площадей зазоров 11 и 12. При вращении ротора масляный туман по патрубку, осевому каналу и отверстиям в роторе поступает в подшипник . Отвод конденсированного в подшипнике масла производится через зазоры, образованные втулкой 1 с подшипником и корпусом, осевые отверстия втулки и отверстие крышки. При этом, большая часть масла проходит через осевые отверстия втулки, что вызывается их меньшим гидравлически сопротивлением ...

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30-10-1988 дата публикации

Смазывающее устройство

Номер: SU1434163A1
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Изобретение относится к системам смазки и может быть использовано для обеспечения автоматической смазки шарикоподшипниковых опор высокооборотных узлов приборов, применяемых в авиационной технике , приборостроении и обш,ем машиностроении , в которых эти узды расположены в герметичном объеме. Цель - увеличение ресурса работы подшипника качения. Устройство содержит вал 3 с радиальными отверстиями 4 и осевым каналом, в котором размещены втулка 6 с осевыми отверстиями 7, герметизируюш.ая прокладка 8 и крышка 9 втулки. Во втулке установлен поршень 10, выполненный в виде сильфоиа, изготовленного из материала, обладающего памятью первоначальной формы детали. Поршень и втулка образуют камеру 11, заполненную смазкой 12. При работе устройства происходит вырабатывание консистентной смазки в подшипнике, что приводит к его нагреву. Это способствует повышению температуры других деталей, в частности поршня. С уве- личение.м температуры сильфон выдавливает смазку к подшипнику. I ил. eg (Л ...

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15-03-1992 дата публикации

Подшипниковый узел вертикального вала

Номер: SU1719734A1
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Изобретение относится к машиностроению и может быть использовано в подшипниковых узлах вертикальных валов. Цель изобретения - повышение надежности работы в условиях реверсивного вращения вала. Подшипниковый узел содержит смонтированные в корпусе 1 на валу 2 подшипники 3 качения. В валу 2 выполнены сквозные каналы: центральный 4, выходной 5, входной 6. А также выполнен поперечный сквозной паз б, в котором установлен держатель 8. На держателе закреплены нагнетательные лопатки 9 и 10. В зависимости от направления вращения вала масляный поток отодвигает лопатку 9 или 10, С той же стороны открывается входной канал, а с противоположной закрывается. Масло подается через входной, центральный и выходной каналы на подшипники 3.1 з.п. ф-лы, 2 ил.

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07-12-1983 дата публикации

Упорный подшипник качения

Номер: SU1059299A1
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... 1. УПОРНЫЙ ПОДШИПНИК КАЧЕНИЯ , содержащий подвижный и неподвижный опорные диски, проволочные дорожки качения, а также установленные между ними тела качения в сепараторе, отличающийся тем, что, с целью повышения долговечности при работе с магнитоактивной порошкообразной смазкой, он снабжен смон тированными на неподвижном диске концентрично расположенными относительно вертикальной оси несуш.ими кольцами, на торце каждого из которых установлены проволочные дорожки качения, охватывающей наружное несущее кольцо ограничительной обо ймой, размещенным во внутреннем несущем кольце и установленным на неподвижном диске постоянным магнитом с магнитопррводящей шайбой, а также установленным с зазором относительно ограничительной обоймы экраном и размещенным между ними средством возврата смазки, ограничитель S / / / 7SГЗ 2 7О 77 92/г / ная обойма и наружное несущее кольцо выполнены со сквозными пазами, неподвижный опорный диск и наружное несущее кольцо выаолнены из магнитопроводящего материала , а внутреннее ...

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07-01-1989 дата публикации

Подшипник качения с твердой смазкой

Номер: SU1449727A1
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Изобретение относится к области машиностроения, а точнее к подшипникам качения осей валов, и может быть использов ано в узлах трения механизмов , работающих в условиях широкого диапазона температур, глубокого вакуума , повьш1енной радиации, агрессивных сред, где применение обычных подшипников качения с использованием смазочш Х масел или пластичных сма- зок невозможно. Цель изобретения - повьшаыие долговечности, надежности и быстроходности за счет рационального расходования резерва твердой смазки и исключения из твердой смазки связующего, наполнителей и армирующих волокон. Подшипник содержит внут- реннее кольцо 1, наружное кольцо 2,. находящийся между кольцами сепаратор 3. В гнездах сепаратора наряду с обычными телами качения 4 размещено по меньшей мере одно тело качения 6, заполненное гранулами твердой смазки 5. Тело качения 6 выполнено д виде металлической оболочки с отверстиями, размер которых не превышает минимального размера указанных гранул. Малые массы гранул предопр еделяют и малую ...

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Linearwälzlager

Номер: DE0010307882A1
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Linearwälzlager mit einem an einer Führungsschiene (2) über Wälzkörper (4) wälzlagerbaren Führungswagen (1), der mit wenigstens einem endlosen Wälzkörperkanal (3) für die Wälzkörper (4) versehen ist, welcher Wälzkörperkanal (3) einen Tragkanal (5) für tragende Wälzkörper (4), einen Rücklaufkanal (11) für rücklaufende Wälzkörper (4) und den Tragkanal (5) mit dem Rücklaufkanal (11) verbindende Umlenkkanäle (10) aufweist, wobei die Umlenkkanäle (10) an Endgliedern (9) des Führungswagens (1) vorgesehen sind, und wobei die Wälzkörper (4) im Wälzkörperkanal (3) einen Verschiebewiderstand in Umlaufrichtung erfahren, wobei die Endglieder (9) jeweils mit einem Sensor (12) versehen sind, dessen vorzugsweise elektrisches Signal abhängig ist von dem Verschiebewiderstand.

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VERFAHREN UND VORRICHTUNG ZUM INTERMITTIERENDEN VERSORGEN VON LAGERSTELLEN MIT KUEHL- UND SCHMIERMITTEL

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Lagerung

Номер: DE102013218434A1
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Beschrieben wird eine Lagerung einer Ritzelwelle (II) in einem Gehäuse (6), wobei das Ritzel der Ritzelwelle (II) mit einem Tellerrad (I) zusammenwirkt, wobei die Ritzelwelle (II) mit zwei Axiallagern (3, 5) und einem zwischen den Axiallagern (3, 5) angeordnetem Radiallager (4) im Gehäuse (6) gelagert ist.

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Radlageranordnung an einem Fahrzeugrad eines Fahrzeugs

Номер: DE102015000549B4
Принадлежит: AUDI AG

Die Erfindung betrifft eine Radlageranordnung (1) an einem Fahrzeugrad eines Fahrzeugs, mit einem Radlager (2), mit dem das Fahrzeugrad drehbar an dem Fahrzeug gelagert ist, wobei das Radlager (2) als geschmiertes Wälzlager mit mehreren zwischen lagerseitigen Laufbahnen (3, 4) abrollenden Wälzkörpern (7) ausgebildet ist, wobei zwischen den Laufbahnen (3, 4) ein die Wälzkörper (7) und ein Schmiermittel aufnehmender Lagerinnenraum (8) vorgesehen ist, in dem wenigstens ein elektrisches Heizelement (12, 13) angeordnet ist, das mit einer außerhalb des Radlagers (2) angeordneten Steuer- und/oder Regeleinrichtung elektrisch verbunden ist. Erfindungsgemäß ist das wenigstens eine elektrische Heizelement (12, 13) durch eine der Laufbahnen (3, 4) hindurch mit einem elektrischen Steckkontakt (14, 15) elektrisch verbunden, wobei bevorzugt vorgesehen ist, dass eine von der Steuer- und/oder Regeleinrichtung zu dem Steckkontakt (14, 15) geführte und mit dem Steckkontakt (14, 15) elektrisch verbundene Steckkontakt-Verbindungsleitung ...

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WAELZLAGER.

Номер: DE0003773117D1

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Kaefighuelse fuer Axial-Pendelrollenlager

Номер: DE0001078383B

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Ultrahigh speed electric motor with low noise - for driving spindles in textile spinning machinery

Номер: DE0002533781A1
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The rotor shaft is mounted in a pair of ball bearings with outer races in the housing, whereas the inner races are machine directly in the rotor shaft. The dia. of the rotor winding does not exceed the dia. of the outer bearing races, and cavities are provided in the bearings for a vol. of grease adequate for the life of the bearings. The grease cavities pref. consist of recesses in the outer races. Esp. used for driving spindles at over 40,000 r.p.m. in open ended spinning machines. High dynamic stiffness of the rotor with perfect balance, high reliability, and a low noise level are obtd. as there is only one moving part.

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Verfahren zum Betrieb einer Wälzlageranordnung und Wälzlagereinrichtung hierzu

Номер: DE102012201721A1
Принадлежит:

Die Erfindung betrifft eine Wälzlagereinrichtung (1) und ein Verfahren zu deren Betrieb mit einem Wälzlager (2) mit unter Mediumsberührung stehenden und von dem flüssigen Medium (10) geschmierten Wälzkontakten (6, 7). Um die Schmier- und Tragfähigkeit derart mediumsgeschmierter Wälzlager (2) bei gleichzeitig biologisch verträglichem Verhalten zu verbessern, wird in einer Vorhalteeinrichtung (14) ein das Medium verdickender, biologisch neutraler Zusatzstoff (13) vorgehalten und bedarfsabhängig an die Wälzkontakte (6, 7) dosiert.

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22-02-1973 дата публикации

ROTIERENDER STEINMEISSEL BEIM BOHREN MIT FLUESSIGKEIT

Номер: DE0002231745A1
Принадлежит:

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12-06-2014 дата публикации

Roller bearing, has roller element rolling on pitch line of bearing ring, and lubrication tube carrying lubricant to lubrication element that is located on bearing ring, where lubrication element is arranged at sides of pitch line

Номер: DE102012222628A1
Принадлежит:

The bearing has a roller element (3) rolling on a pitch line (2) of a bearing ring (1). A dimensionally stable lubrication element (4) is made of a porous material that contains a lubrication material. A lubrication tube (8) carries the lubricant to the lubrication element that is located on the bearing ring. The hollow-cylindrical lubrication element is arranged at sides of the pitch line. A molded part (5) temporarily remains in contact with the roller element. The molded part is located on a form-fitting surface extended to an inner circumferential surface of the bearing ring.

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09-04-1998 дата публикации

Ball bearing for two part flywheel

Номер: DE0019640094A1
Принадлежит:

The ball bearing has an outer race (1) and an inner race (2) each with a guideway (11,12) for the bearing balls (3). The outer race inner face defines a double conical surface (4) so that the opening angle (alpha ) of the cone is in the direction of each guideway (11). The opening angle is about 50 degrees. The inner ring (2), on its die facing the bearing balls, has an extending groove defining at least one pocket which can be angled with respect to the direction of the bearing.

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13-04-2017 дата публикации

Lagereinheit umfassend zwei Wälzlager

Номер: DE102015219424A1
Автор: HOLST SVEN, Holst, Sven
Принадлежит:

Die Erfindung betrifft eine zwei Wälzlager (2, 5) umfassende Lagereinheit (1) mit zwei getrennten Lagerinnenringen (3, 6) und einem gemeinsamen Lageraußenring (6). Axial zwischen den beiden Lagerinnenringen (4, 5) ist ein Stützelement (10) vorgesehen, dessen Kontur (11) Schmieröl, das über den Lageraußenring (8) von radial außen her in den Bereich axial zwischen die beiden Wälzlager (2, 5) eingebracht wird, gezielt auf die beiden Wälzlager (2, 5) verteilt.

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31-10-2018 дата публикации

Käfig für ein Wälzlager mit Wälzkörpern, Wälzlager und Linearkugellager mit dem Käfig sowie Verfahren zum Herstellen des Wälzlagers

Номер: DE102017108886A1
Принадлежит:

Zur Gewährleistung einer akzeptablen Laufzeit werden Wälzkörper in einem Wälzlager mit einem Schmierstoff geschmiert. Es wird ein Käfig 4 für ein Wälzlager 1 mit Wälzkörpern 5 vorgeschlagen, wobei der Käfig 4 aus einem porösen Material ausgebildet ist und Poren aufweist, wobei in die Poren ein Schmierstoff und/oder ein Additiv zum Abgeben an die Wälzkörper 5 und/oder zum Schmieren der Wälzkörper 5 eingelagert ist.

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08-02-2018 дата публикации

Ein lippenförmiges Dichtungsteil und ein Lager

Номер: DE102017115992A1
Принадлежит:

Ein lippenförmiges Dichtungsteil und ein Lager, das Lager umfassend einen Innenring, einen Außenring, ein zwischen dem Innenring und dem Außenring angeordnetes lippenförmiges Dichtungsteil sowie eine mit der Dichtungslippe des lippenförmigen Dichtungsteils in Kontakt stehende Kontaktfläche; wobei an der Kontaktfläche mehrere Vertiefungsbereiche angeordnet sind, die Vertiefungsbereiche mehrere Vertiefungen umfassen und die einzelnen Vertiefungsbereiche in Umfangsrichtung mit Abständen angeordnet sind. Die vorliegende Erfindung kann durch die Anordnung von Vertiefungsbereichen an der Kontaktfläche den Verschleiß des lippenförmigen Dichtungsteils verringern.

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19-01-1995 дата публикации

Angular thrust washer

Номер: DE0004416320A1
Принадлежит:

The invention relates to an angular thrust washer intended for a thrust bearing, being used to guide rolling elements and to center the thrust bearing. It is known to provide the angular thrust washer locally with flexible tabs which do not effect adequate fixing and locking and require the relatively expensive production of a slot into which the tab engages. According to the invention a projection (6) is formed rather than machined into an angled portion (4) of an angular thrust washer (1) and this projection engages in a radially inwards or outwards direction into a slot in the housing. ...

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16-03-2017 дата публикации

Lager und Verfahren zur Bildung eines Lagers

Номер: DE112015002288T5
Принадлежит: TIMKEN CO, THE TIMKEN COMPANY

Eine Lageranordnung weist einen inneren Laufring (14) auf, der eine innere Laufbahn definiert, sowie einen äußeren Laufring, der eine äußere Laufbahn definiert, auf denen eine Vielzahl von Wälzelementen (22) rollen. Die Lagerlaufbahnen werden unter Verwendung von Oberflächenendbearbeitungsvorgängen maschinell bearbeitet, um bevorzugte Oberflächenprofile und Oberflächenstrukturen zur Verbesserung einer Schmierleistung zu erzeugen. Das Profil der Laufbahn wird anfangs unter Verwendung eines ersten Schleifvorgangs erzeugt, um ein raues Oberflächenprofil zu bilden, das ein raues zentrales Band (34) und raue zurückgesetzte Seitenbänder (38) umfasst. Ein zweiter Schleifvorgang wird dazu verwendet, das zentrale Band zu glätten. Dieses Laufbahnoberflächenprofil erhöht die Schmierleistung.

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11-02-2014 дата публикации

Achslager und Filmtransportvorrichtung

Номер: DE212012000125U1
Автор:
Принадлежит: NSK LTD, NSK LTD.

Wälzlager mit einem Innenring, einem Außenring, zahlreichen Rollkörpern und einem ringförmigen Kugelkäfig, welcher durch Spritzgießen aus einer faserförmiges Füllmaterial enthaltenden Harzzusammensetzung mit ETFE (Ethylen-Tetrafluorethylen Copolymer) als Hauptbestandteil geformt wird, wobei die Führungsform in dem vorgenannten Kugelkäfig eine Lagerringführung ist und der besagte Innenring und Außenring in deren Umlaufebene sowie in der Rollebene der vorgenannten Rollkörper auf einer Gesamtoberfläche von 1 m2 mehr als 1,0 g aber weniger als 10 g Schmiermittel aufgetragen wird.

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27-07-2006 дата публикации

Linearwälzlager mit Sensor zur Ermittlung von Verschiebewiderstand

Номер: DE502004000774D1
Принадлежит: SCHAEFFLER KG

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25-11-2010 дата публикации

Dichtung und Wälzlager, das eine solche Dichtung aufweist

Номер: DE112009000106T5
Принадлежит: SKF AB, AKTIEBOLAGET SKF

Dichtung, die zur Montage zwischen zwei relativ zueinander drehbaren Elementen (14, 16), insbesondere Ringen eines Wälzlagers ausgebildet ist, wobei die Dichtung Dichtbereiche (32, 34) aufweist, die geeignet sind, eine dynamische Dichtung mit einem der beiden Elemente (16) und eine statische Dichtung mit dem anderen Element (14) anzuwenden, dadurch gekennzeichnet, dass der dynamische Dichtbereich (34) wenigstens erste und zweite Lippen (38, 40) aufweist, die eine Ringkammer (46) begrenzen, die mit Schmiermittel befüllbar ist, wobei die Dichtung derart ausgebildet ist, dass sie während des Kontaktes eines Fluids mit wenigstens dem dynamischen Dichtbereich (34) eine Bewegung einer der Lippen wenigstens in der Radialrichtung in die Richtung des zugeordneten Elements (16) erlaubt, um einen Kontakt mit diesem Element zu erhalten.

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26-09-2013 дата публикации

Kugellager

Номер: DE112011103515T5
Принадлежит: NTN TOYO BEARING CO LTD, NTN CORPORATION

Kugellageranordnung, in der die Anzahl von Komponenten verringert ist und ein Hochgeschwindigkeitsbetrieb ermöglicht werden kann, wobei eine Erhöhung des Rührwiderstands durch eine ausreichende Ableitung von Schmieröl verringert und eine Erhöhung der Temperatur in der Lageranordnung vermindert ist. Die Kugellageranordnung enthält zwei Rollbahnringe, die Innen- und Außenringe sind, mehrere Rollelemente, die zwischen den Innen- und Außenringen eingesetzt sind, und eine Halterung zum Halten der Rollelemente. Jeder der Innen- und Außenringe ist mit einem sich axial erstreckenden Rollbahnringerweiterungsabschnitt versehen und ein Ölzu- und -ableitungsmechanismus zum Zuleiten eines Schmieröls, das gleichzeitig als Lagerkühlungsmedium dient, zur Lageranordnung und zum Ableiten des Schmieröls zur Außenseite der Lageranordnung ist in dem Rollbahnringerweiterungsabschnitt vorgesehen.

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25-06-2009 дата публикации

Injector for durably lubricating antifriction bearing, has closing element formed by spring-tensioned needle in cavity, and formed by ball valve that closes section of cavity forming valve channel

Номер: DE102007062389A1
Принадлежит:

The injector (3) has a pressure source (13) for supplying the injector with a lubricant, and a nozzle (24) for outputting the lubricant. A cavity (14) with a constant volume is formed between the source and the nozzle. The cavity is closed by a closing element that is operated by an actuator formed by an electromechanical transducer (18). The closing element is formed by a spring-tensioned needle in the cavity, where the nozzle is closed by the needle. The closing element is formed by a ball valve (17) that closes a section of the cavity forming a valve channel (16). An independent claim is also included for a device for durably lubricating a bearing, comprising a set of injectors.

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03-08-1995 дата публикации

Roller bearing with vibration damping

Номер: DE0004442721A1
Принадлежит:

The bearing comprises two parts rotatable to one another and arranged concentrically one inside the other. The cover surfaces of the two parts (1, 2) facing one another limit a damping gap (7) which is ring-shaped and filled with oil (10). The cover surfaces form running surfaces (3, 4) for roller bodies (5). The roller bodies are cylinders and the parts are formed by roller bearing rings (1, 2). The damping gap is sealed at its two face sides by means of sealing rings (9, 12) arranged between the roller bearing rings (1, 2).

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14-08-2003 дата публикации

Wälzlagerung mit Schwingungsdämpfung

Номер: DE0004442721C2
Автор: LUNZ ERICH, LUNZ, ERICH
Принадлежит: INA SCHAEFFLER KG, INA-SCHAEFFLER KG

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10-05-2007 дата публикации

High speed bearing for machine tool has radial supply bore holes, which are formed as stepped bore holes in outer bearing ring whereby pressure restrictor discharges into spray hopper

Номер: DE102005052677A1
Принадлежит:

The bearing has radial supply bore holes (9), which are formed in outer bearing ring (3) as stepped bore holes that exhibit pressure stasis area (11) with enlarged diameter outside the bearing ring. The stepped bore holes start from the bore inlet (10) outside bearing ring with enlarged diameter. The pressure stasis area extends across the largest part of the entire drill depth and is formed with a passage (12) to a pressure restrictor (13) with decreasing diameter. Pressure restrictor discharges, from bearing ring inner side boring outlet (14) of supply drill holes, into a spray hopper (15) in the intermediate area between the bearing rings.

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19-10-1989 дата публикации

Номер: DE8810291U1
Автор:
Принадлежит: LEYBOLD AG, 6450 HANAU, DE

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31-01-2008 дата публикации

Wälz- oder Linearlager

Номер: DE102006034966A1
Принадлежит:

Wälz- oder Linearlager, umfassend einen Käfig, mehrere in diesem gehalterte Wälzkörper sowie eine oder mehrere Laufflächen, auf denen die Wälzkörper laufen, wenigstens ein Dichtelement sowie einen der Lagerschmierung dienenden Schmierstoff, wobei der Schmierstoff (10) ein Ferrofluid (11) ist und am Käfig (6) und/oder an den Wälzkörpern (7) und/oder der oder den Lauffläche(n) (3, 5) und/oder dem oder den Dichtelement(en) ein oder mehrere mit dem Ferrofluid (11) zusammenwirkende magnetische Abschnitte (9) vorgesehen sind.

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15-05-2008 дата публикации

Radial bearing i.e. cylindrical roller bearing, for use in e.g. wind power plant, has retainer arranged between rings for guiding rolling units, and drive units arranged in boards for movement of lubricant during rotating motion of bearing

Номер: DE102006052835A1
Принадлежит:

The bearing (1) has a retainer (4) arranged between an outer ring (2) and an inner ring (3) for guiding rolling units (5), and a lubricant e.g. gear oil, provided in a lubricant area between the outer ring and the inner ring. An interior board (6), external boards and inner ring boards extend radially inwards and/or outwards to the outer ring and/or the inner ring. Drive units e.g. turbine blade shaped drive units, are arranged in the boards of the outer and inner rings for movement of the lubricant during rotating motion of the bearing.

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12-04-2001 дата публикации

Schmierungs-Struktur für ein Kegelrollenlager

Номер: DE0010036975A1
Принадлежит:

Eine Schmierungsstruktur für ein automatisches Getriebe umfasst einen Damm, der zum Speichern von Schmieröl und zum Schmieren eines Kegelrollenlagers ein Ölreservoir begrenzt. Das Ölreservoir ist in einem ringförmigen Raum zwischen einem nicht rotierenden hohlen zylindrischen Glied und einem Vorsprung eines Ausgangszahnrades angeordnet. Das Kegelrollenlager ist axial zwischen dem Ausgangszahnrad und dem Damm angeordnet. Der Damm ist mit einer solchen Höhe ausgebildet, dass an einer untersten Position zumindest von einem exponiert angeordneten Ende ein Teil oder das gesamte Ende jeder Kegelrolle von Schmieröl umspült wird.

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28-08-2003 дата публикации

Käfig für Wälzkörper

Номер: DE0010192256D2
Принадлежит: SIEMENS DEMATIC AG

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28-05-2009 дата публикации

Guiding wagon for linear rolling bearing, has main body which is supported in lengthwise-mobile manner over endlessly rotating rolling body row at guide rail extending in longitudinal direction

Номер: DE102008052083A1
Принадлежит:

The guiding wagon (13) has a main body (14) which is supported in a lengthwise-mobile manner over an endlessly rotating rolling body row at a guide rail extending in a longitudinal direction. An insertion section is provided, which is arranged within a lubrication recess (221) of an end cap (22) in sectional manner.

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11-02-2010 дата публикации

Radiallagerung

Номер: DE502006005811D1
Принадлежит: SCHAEFFLER KG

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13-12-2001 дата публикации

Radiallager für ein Automatikgetriebe

Номер: DE0004332028C2
Автор: GIESE PETER, GIESE, PETER

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31-03-2011 дата публикации

VORRICHTUNG

Номер: DE502006008906D1
Принадлежит: SKF AB, AB SKF

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04-03-2021 дата публикации

Lagerung

Номер: DE102013218434B4

Lagerung einer Ritzelwelle (II) in einem Gehäuse (6), wobei das Ritzel der Ritzelwelle (II) mit einem Tellerrad (I) zusammenwirkt, wobei die Ritzelwelle (II) insgesamt mit genau zwei Axiallagern (3, 5) auf beiden Seiten der Gehäusewand und genau einem zwischen den Axiallagern (3, 5) angeordnetem Radiallager (4) im Gehäuse (6) gelagert ist, dadurch gekennzeichnet, dass das erste Axiallager (3), im Inneren des Gehäuses zwischen dem Ritzel, der Rückseite des Ritzels und der Gehäusewand (6) angeordnet ist und das außerhalb des Gehäuses (6) angeordnete zweite Axiallager (5) zwischen Gehäuse, Gehäusewand (6) und einer axialen Abstützung, die als eine eine mittels Sicherungsring fixierte Anlaufscheibe (9) angeordnet ist, wobei das Axiallager (5) eine Lagerbuchse (11) und integrierte, gehärtete und geschliffene Laufbahnen (11a) für die Wälzkörper des Radiallagers (4) und des zweiten Axiallagers (5) aufweist.

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11-04-2019 дата публикации

Käfig für ein Wälzlager sowie Kugellager

Номер: DE102017123603A1
Принадлежит:

Käfig (1) für ein Wälzlager, insbesondere Kugellager (9), mit einer Vielzahl an Wälzkörpertaschen (2), aufweisend eine Vielzahl an Aussparungen (4), die an beiden Stirnseiten (3) des Käfigs (1) ausgebildet sind, wobei jede Aussparung (4) mit einer Wälzkörpertasche (2) über eine an der Umfangsfläche (5, 6) des Käfigs (1) ausgebildeten Ausnehmung (7) verbunden ist.

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29-11-1990 дата публикации

LAGERANORDNUNG EINER ROTATIONSMASCHINE.

Номер: DE0000365178T1
Принадлежит: ISUZU MOTORS LTD., TOKIO/TOKYO, JP

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08-12-2016 дата публикации

Wälzlagervorrichtung

Номер: DE102016110225A1
Принадлежит:

Eine Wälzlagervorrichtung beinhaltet einen Lagerabschnitt und eine Schmiereinheit. Die Schmiereinheit ist in axialer Richtung benachbart einem Ringraum angeordnet. Der Ringraum ist zwischen einem Innenring und einem Außenring ausgebildet und die Schmiereinheit hat einen Tank, welcher Schmiermittel bevorratet, das dem Ringraum zugeführt wird. Der Tank hat an einer radial äußeren Seite eine Außenwand und an einer radial inneren Seite der Außenwand ist ein Rahmen ausgebildet, der ein Speicherabschnitt zur Bevorratung des Schmiermittels ist. Eine Ölzufuhrbohrung, die verwendet wird, den Speicherabschnitt neu mit Schmiermittel zu füllen, ist die Außenwand durchtretend vorgesehen. Die Ölzufuhrbohrung öffnet sich zu einer radial äußeren Seite hin.

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30-05-2018 дата публикации

Wälzlager

Номер: DE102016223574A1
Принадлежит:

Die Erfindung betrifft ein Wälzlagermit einem Lagerinnenring und einem Lageraußenring, von denen wenigstens einer über einer Lagerdrehachse gegenüber dem anderen verdrehbar ist;mit einer Vielzahl von Wälzkörpern, die jeweils über einer Wälzkörperdrehachse verdrehbar sind und in Umfangsrichtung über der Lagerdrehachse hintereinander zwischen dem Lagerinnenring und dem Lageraußenring positioniert sind; wobeider Lagerinnenring und der Lageraußenring in Umfangsrichtung über der Lagerdrehachse jeweils einteilig ausgeführt sind und einteilige ununterbrochene Laufbahnen für die Wälzkörper ausbilden unddie Wälzkörper in zwei Lagerreihen in Axialrichtung des Wälzlagers nebeneinander angeordnet sind.Das erfindungsgemäße Wälzlager ist dadurch gekennzeichnet, dass der Lageraußenring zwei in Axialrichtung auf entgegengesetzten Seiten angeschlossene Bordringe aufweist, die sich in der Umfangsrichtung über jeweils einer Vielzahl von Wälzkörpern erstrecken und einen Bord zur unmittelbaren oder mittelbaren ...

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16-08-2007 дата публикации

Umdrehungsvorrichtung

Номер: DE0060213727T2
Принадлежит: IMN CO LTD, IMN CO. LTD.

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27-04-2000 дата публикации

Automotive gearbox bearing within hydrodynamic torque converter minimizes noise and fits within existing available space

Номер: DE0019849327A1
Принадлежит:

An automatic automotive gearbox has a shaft (2) bearing forming part of the hydrodynamic torque converter, and fixed to the impeller wheel. The bearing consists of a concentric roller bearing around the shaft. The bearing has numerous rollers (3,3') rotating within an outer race (9). A choke ring (4) with radial mechanical play is inserted between the ends of the roller bearings (3), at the end directed away from the impeller wheel (7) and the relevant end-face rim (10) of the bearing race. The choke ring rests only against an area (8) on the bearing race end edge. The race is fabricated from pressed sheet metal.

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23-07-1998 дата публикации

Guide rail for e.g. machine tool or industrial robot has saddle fabricated

Номер: DE0019801176A1
Принадлежит:

A lubricated linear guide used within a machine tool or industrial robot has a rail (2) with lateral (3) outer guide-grooves (4). A saddle (1) with housing (5) move along the rail (2) resting on lubricated plates (15). The lubricated plates are arranged between two spacers whose ends are closed off by caps and seals. The lubricating plates (15) have projections locating in the guide-grooves (4). The lubricating plates (15) are fabricated in a porous sintered resin impregnated with a lubricant oil or lubricating agent. The sintered resin components are fabricated by filling a metal form with resin in fine particle from and the application of heat treatment.

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07-01-2016 дата публикации

Wälzlagerung für ein Kettenrad in einem Verteilergetriebe

Номер: DE102014211364A1
Принадлежит:

Die Erfindung betrifft eine Wälzlagerung für ein Kettenrad in einem Verteilergetriebe (1) eines Kraftfahrzeuges, umfassend eine mit der Antriebseinheit des Kraftfahrzeuges verbundene Eingangswelle (2), eine drehfest mit der Eingangswelle (2) verbundene erste Ausgangswelle (3) und eine zweite Ausgangswelle (4), sowie mit einer Drehmomentübertragungseinrichtung (5) mit einer Kupplung (6), wobei die Eingangswelle (2) und die zweite Ausgangswelle (4) versetzt zueinander angeordnet sind und zwischen der Drehmomentübertragungseinrichtung (5) und der zweiten Ausgangswelle (4) ein Kettentrieb vorgesehen ist, der aus einem über eine Wälzlagerung (10) drehbar auf der Eingangswelle (2) gelagerten ersten Kettenrad (7), einem drehfest mit der zweiten Ausgangswelle (4) verbundenen zweiten Kettenrad (8) und einer diese miteinander verbindenden Gliederkette (9) besteht. Erfindungsgemäß ist die Wälzlagerung (10) zwischen dem ersten Kettenrad (7) und der Eingangswelle (2) als in eine Lageraufnahme (11) des ...

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17-03-2005 дата публикации

Zweimassenschwungrad

Номер: DE102004038845A1
Принадлежит:

Es ist eine Schwungradanordnung mit einem verbesserten Lageraufbau vorgesehen. Ein Schwungraddämpfer (11) ist eine Schwungradanordnung zum Übertragen von Drehmoment von der Kurbelwelle eines Motors und hat eine erste Schwungradanordnung (4), eine zweite Schwungradanordnung (5), einen Dämpfermechanismus (6) und ein Nadellager (43). Die erste Schwungradanordnung (4) ist an der Kurbelwelle (2) befestigt. Die zweite Schwungradanordnung (5) ist so angeordnet, dass sie relativ zu der ersten Schwungradanordnung (4) drehen kann. Der Dämpfermechanismus (6) verbindet die zweite Schwungradanordnung (5) mit der Kurbelwelle (6) in Drehrichtung. Das Nadellager (43) ist ein Lager zum drehbaren Abstützen der zweiten Schwungradanordnung (5) an der Kurbelwelle und hat eine Mehrzahl von Nadeln (44), die zwischen Umfangsoberflächen (21d) und (37b) der beiden Elemente angeordnet sind.

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22-11-2007 дата публикации

Method e.g. for lubricating and cooling bearing arrangement, involves having lubricant gaseous medium with excess pressure fed via pipe to depository of storage arrangement

Номер: DE102006024350B3
Принадлежит: SKF AB, AB SKF

The method involves having a lubricant (P) gaseous medium (L) with excess pressure fed via a pipe (6) to a depository (2) of a storage arrangement (1). The gaseous medium air (L) or an inert gas is submitted in the lubricant, or in powder form. The quantity of force with lubricant gaseous medium and or its pressure is calculated and the effect of media shifted with lubricant gas as a blocking at the depository. An independent claim is included for a bearing arrangement.

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16-03-1978 дата публикации

Номер: DE0002315093B2

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29-03-2012 дата публикации

Antifriction bearing has two bearing rings and one or multiple rolling bodies, which are arranged between bearing rings, where rolling bodies are rolled on careers of bearing bodies

Номер: DE102010046416A1
Принадлежит:

The antifriction bearing has two bearing rings (1,2) and one or multiple rolling bodies, which are arranged between the bearing rings. The rolling bodies are rolled on careers (8,10) of the bearing bodies. A shut-off valve (12) is arranged in or before a lubrication hole (9). The shut-off valve is made of plastic.

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17-07-1997 дата публикации

Cylindrical roller bearing with one-piece running rings

Номер: DE0019601044A1
Принадлежит:

The cylindrical roller bearing has inner and outer (1) running rings, between which cylindrical rollers (7) are guided in a cage. The latter is free to rotate, guided by an annular groove on the inner or outer ring. The cage has pockets (8) which accept the rollers, and which are distributed over its perimeter, on the inner or outer diameter. It has a radial partition (10) in the region of each roller, so that the number of connecting pieces (6) formed corresponds to the number of rollers. When viewed in the circumferential direction, the gaps may have a width which prevents any contact between the individual connecting pieces.

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21-06-2012 дата публикации

Bearing arrangement for high-speed shafts of machines

Номер: US20120155793A1
Принадлежит: Schaeffler Technologies AG and Co KG

A bearing arrangement for high-speed shafts of machines, such as rotor shafts of turbochargers. The bearing arrangement has a bearing housing that has at least one oil feed line and in the housing at least one bearing is installed. The bearing guides the shaft at least radially. The bearing has a ring with at least one oil bore. The ring forms an annular gap with the bearing housing. The bearing is a single-row rolling contact bearing, in which the shaft is guided directly or via an inner ring, preferably a two-part inner ring, and the ring is an outer ring of the rolling contact bearing.

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01-11-2012 дата публикации

Bearing assembly having an internal oil mist generator

Номер: US20120275737A1
Автор: Ferdinand Schweitzer
Принадлежит: SKF AB

A rolling element bearing includes a plurality of rolling elements disposed between at least one bearing inner ring and at least one bearing outer ring. A cage retains and guides the rolling elements between the at least one bearing inner ring and the at least one bearing outer ring. An annular extension extends from the cage. The annular extension has a rectangular contour when viewed in radial cross-section and has a surface roughness (R a ) less than seven μm. The annular extension extends at least three millimeters into lubricating oil disposed in an oil reservoir adjacent to the annular extension and generates an oil mist when one of the at least one bearing inner ring and at least one bearing outer ring rotates relative to the other.

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27-06-2013 дата публикации

BEARING CAGE HAVING LIPOPHOBIC OR OLEOPHOBIC SURFACE(S)

Номер: US20130163908A1
Автор: Haag Cornelia, Schulz Ingo
Принадлежит: AKTIEBOLAGET SKF

A bearing cage has an annular structure with a plurality of pockets defined therein. At least one first surface area of the annular structure is made from, or is coated with, a first material having lipophobic and/or oleophobic properties. A rolling-element bearing includes this bearing cage, a plurality of roller bodies respectively disposed in the pockets, and a lubricant that forms a contact angle of at least 90° when disposed on the first material. 1. A bearing cage comprising:an annular structure having a plurality of pockets defined therein, wherein at least one first surface area of the annular structure is made from, or is coated with, a first material having lipophobic and/or oleophobic properties.2. The bearing cage according to claim 1 , wherein the first material is disposed on one or more surfaces at least substantially claim 1 , or entirely claim 1 , outside the pockets.3. The bearing cage according to claim 2 , wherein at least one second surface area of the annular structure is made from claim 2 , or is coated with claim 2 , a second material that is less lipophobic and/or oleophobic than the first material.4. The bearing cage according to claim 3 , the second material is bounded on two opposite sides by the first material so as to define a channel configured to transport a hydrophobic lubricant.5. The bearing cage according to claim 4 , wherein the lubricant transport channel is tapered at least in part.6. The bearing cage according to claim 5 , wherein a first end of the lubricant transport channel leads to a point or location in need of lubrication.7. The bearing cage according to claim 6 , wherein the point or location in need of lubrication is a contact point configured to contact a roller body or a bearing race.8. The bearing cage according to claim 7 , wherein a second end of the lubricant transport channel is adjacent to claim 7 , or in fluid communication with claim 7 , a location configured to collect lubricant.9. The bearing cage according ...

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08-08-2013 дата публикации

ROLLING BEARING AND ROLLING BEARING ASSEMBLY

Номер: US20130202237A1
Автор: KOSUGI Futoshi
Принадлежит:

A rolling bearing includes rolling elements () interposed between rolling surfaces () of an inner ring () and an outer ring (). An oil supply hole () for lubricant oil supply is provided in the outer ring () so as to communicate between an outer diameter surface () of the outer ring () and a position, near the rolling surface, in an inner peripheral surface () of the outer ring (). A circumferential groove () is provided on the outer diameter surface () of the outer ring () so as to communicate with the oil supply hole () to introduce, to the oil supply hole (), a lubricant oil supplied from a circumferential position outside the bearing that is different from that of the oil supply hole (). 1. A rolling bearing assembly comprising:a rolling bearing including rolling elements interposed between rolling surfaces of an inner ring and an outer ring; anda housing having an inner diameter surface on which the outer ring of the rolling bearing is mounted;wherein an oil supply hole for lubricant oil supply is provided in the outer ring so as to communicate between an outer diameter surface of the outer ring and a position, near the rolling surface, in an inner peripheral surface of the outer ring;wherein a circumferential flow passage is provided on a mounting surface between the outer diameter surface of the outer ring and the inner diameter surface of the housing on which the outer ring is mounted, the circumferential flow passage communicating with the oil supply hole and extending in a circumferential direction; andwherein a lubricant oil introduction hole is provided in the housing so as to communicate with the circumferential flow passage at a circumferential position different from that of the oil supply hole to supply a lubricant oil to the circumferential flow passage.2. The rolling bearing assembly as claimed in claim 1 , wherein the circumferential flow passage is a circumferential groove provided on the outer diameter surface of the outer ring.3. The rolling ...

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12-12-2013 дата публикации

BALL BEARING RETAINER AND BALL BEARING

Номер: US20130330031A1
Принадлежит:

Provided is a ball bearing retainer, comprising two annular members () that face each other in an axial direction, the two annular members () having opposed surfaces () each comprising hemispherical pockets () that are formed at a plurality of positions in a circumferential direction and configured to receive balls, the opposed surfaces () being snap-fitted to each other so as to couple the two annular members () to each other with coupling portions () provided at both circumferential end portions of each of the hemispherical pockets (). Inner peripheral surfaces of the hemispherical pockets () of the two annular members () and the opposed surfaces () of the two annular members () comprise recessed grooves () that are opened by extending from radially inner surfaces of the two annular members () and reaching radially outer surfaces of the two annular members (). 1. A ball bearing retainer , comprising two annular members that face each other in an bearing axial direction ,the two annular members having opposed surfaces each comprising hemispherical pockets that are formed at a plurality of positions in a circumferential direction of the annular members and configured to receive balls,the opposed surfaces being snap-fitted to each other so as to couple the two annular members to each other with coupling portions provided at both circumferential end portions of each of the hemispherical pockets,wherein the hemispherical pockets each comprise lubricating-oil relief recessed grooves provided in an inner peripheral surface thereof.2. A ball bearing retainer according to claim 1 , wherein the lubricating-oil relief recessed grooves are each formed to extend from a radially inner surface of each of the two annular members and reach a radially outer surface of the each of the two annular members.3. A ball bearing retainer according to claim 1 , wherein the lubricating-oil relief recessed grooves each have a circular-arc shape in cross-section.4. A ball bearing retainer ...

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20-03-2014 дата публикации

Lubricating structure for linear motion guide apparatus

Номер: US20140079345A1
Автор: Chia Yang LI
Принадлежит: Hiwin Technologies Corp

A linear motion guide device includes a slider slidably attached onto a guide rail, an end cap having an inner side attached to the slider, a ball bearing device disposed between the slider and the guide rail, the end cap includes an inlet for receiving a lubricating fluid, two chambers formed in two legs, a groove communicating with the chambers of the end cap, and a casing having a compartment formed by an outer wall and communicating with the inlet of the end cap for receiving the lubricating fluid from the inlet of the end cap, and the outer wall of the casing is aligned with and directed toward the inlet of the end cap for resisting a flowing of the lubricating fluid.

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03-04-2014 дата публикации

SEALING DEVICE FOR AXLE BEARING

Номер: US20140093200A1
Принадлежит: HONDA MOTOR CO., LTD.

In the present invention, disclosed is a sealing device for an axle bearing wherein a lubricant is maintained on sliding contact surfaces, thereby suppressing elevation of torque due to the depletion of grease. A lubricant-adsorbing layer () comprises a thickener () and a binder (). The lubricant () comprises a base oil () and a thickener (B). The thickener () and the thickener (B) are mutually attracted. A lubricant layer () of a prescribed thickness is formed on the lubricant-adsorbing layer (). This lubricant layer () adheres closely to the lubricant-adsorbing layer () making it difficult to separate the lubricant layer from the lubricant-adsorbing layer (). 1. A sealing device for a bearing having an inner race , an outer race , rolling elements fitting between the inner race and the outer race , and a lubricant filling a space around the rolling elements , the device being disposed between the inner race and the outer race to prevent leakage of the lubricant , the device comprising:a seal member reinforced by a core metal; andan L-shaped cross-sectional slinger having a sliding contact surface formed in sliding contact with a lip portion of the seal member,wherein at least one of the sliding contact surface of the slinger and the lip portion has a lubricant adsorbing layer formed thereon for adsorbing the lubricant, the lubricant adsorbing layer being made of a thickener for grease and a binder.2. The device of claim 1 , wherein the thickener is lithium stearate or urea compound claim 1 , and the binder is one of alkyd and epoxy.3. The device of claim 1 , wherein the thickener is melamine-based condensate and the binder is phenol.4. The device of claim 1 , wherein the lubricant adsorbing layer is formed by a spraying or dipping process.5. The device of claim 2 , wherein the lubricant adsorbing layer is formed by a spraying or dipping process.6. The device of claim 3 , wherein the lubricant adsorbing layer is formed by a spraying or dipping process. The present ...

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22-01-2015 дата публикации

Linear Guide Apparatus

Номер: US20150023618A1
Автор: Mizumura Yoshinori
Принадлежит: NSK LTD.

A trunk portion () of each end face of a slider body of a linear guide apparatus is covered with trunk parts (A, B) of retainers (A, B) in the whole width direction. End faces of both of the trunk parts (A, B) are provided with a projection portion () and a recess portion (), respectively. The end faces of both of the trunk parts (A, B) are brought into contact with each other in a width direction of the projection portion () and the recess portion (), that is a thickness direction of the trunk portion () of the slider body, and has a gap in a length direction (i.e., width direction of the slider). End faces of adjacent trunk parts (A, B) oppose each other at a position not overlapping an oil supply opening (). Oil grooves () conforming to oil grooves () formed on the end cap () are provided on end cap side faces of plate-shaped portions (A, B) integrally formed with the retainers (A, B). 1. A linear guide apparatus , comprising:a guide rail;a slider; anda plurality of rolling elements, whereinthe guide rail and the slider are configured to form rolling faces disposed to oppose each other for forming a rolling passage of the plurality of rolling elements,the slider includes a return passage of the plurality of rolling elements, and a direction changing path for communicating the return passage and the rolling passage,a circulation path of the plurality of rolling elements is configured with the rolling passage, the return passage, and the direction changing path,the guide rail or the slider are configured to relatively move linearly with respect to each other, by the plurality of rolling elements circulating in the circulation path, (1) a body including a pair of leg portions arranged on both sides in a width direction of the guide rail and a trunk portion connecting the pair of leg portions, the rolling faces being respectively formed on inner sides of the pair of leg portions,', '(2) a pair of retainers made of a synthetic resin and respectively arranged for the ...

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10-02-2022 дата публикации

OIL LUBRICATION MECHANISM FOR FRONT BEARING OF WATER-COOLED MOTOR AND MOTOR DRIVING ASSEMBLY

Номер: US20220042591A1
Принадлежит:

The present disclosure discloses an oil-lubrication mechanism for a fore bearing of a water-cooled electric motor and an electric-motor driving assembly, which solves the problems of conventional grease lubrication of the fore bearing of water-cooled electric motors such as serious bearing heat generation and bearing failure and low life caused by easy outflowing of the grease. The oil-lubrication mechanism includes a gear-splashing oil-storage structure provided in a gearbox or a reduction gearbox, and a bearing-baffle oil-storage structure provided at a front end of the water-cooled electric motor; and a gear in the gearbox or the reduction gearbox in operation throws a lubricating oil into the gear-splashing oil-storage structure, and the lubricating oil is delivered via the oil conduit into the bearing-baffle oil-storage structure, thereby lubricating the fore bearing of the water-cooled electric motor, and subsequently the lubricating oil flows back into the gearbox or the reduction gearbox via the oil return tube. In the present disclosure, the lubricating oil that splashes inside the gearbox or the reduction gearbox is introduced into the fore bearing of the water-cooled electric motor, which enables the fore bearing of the water-cooled electric motor to be lubricated by the oil, thereby reducing the heat generation of the fore bearing of the water-cooled electric motor, and improving the life of the fore bearing and the reliability of the electric motor. 1. (canceled)2. (canceled)3. (canceled)4. An oil-lubrication mechanism for a fore bearing of a water-cooled electric motor , wherein the oil-lubrication mechanism comprises a gear-splashing oil-storage structure provided in a gearbox or a reduction gearbox , and a bearing-baffle oil-storage structure provided at a front end of the water-cooled electric motor , the gear-splashing oil-storage structure and the bearing-baffle oil-storage structure are communicated by an oil conduit , and the bearing-baffle oil- ...

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11-02-2016 дата публикации

OIL DEFLECTOR AND OIL DEFLECTOR-BEARING ASSEMBLY

Номер: US20160040720A1
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

An oil deflector is provided comprising a ring-shaped body having a first face and an axial projection extending from the first face. The projection has a radially inwardly facing deflection surface. An oil deflector-bearing assembly includes a bearing, the oil deflector, and a carrier with a plurality of radial oil grooves. The second face of the oil deflector is arranged adjacent to an axial face of the bearing and the carrier is arranged adjacent to the oil deflector so that the projection is at least partially received in one of the oil grooves for deflecting an axial flow of oil. 1. An oil deflector comprising:a ring-shaped body having a first face; andan axial projection extending from the first face, wherein the projection has a radially inwardly facing deflection surface.2. The deflector of claim 1 , wherein the deflection surface includes a radially inwardly inclined portion.3. The deflector of claim 1 , wherein the deflection surface includes a radially inwardly facing curved surface.4. The deflector of claim 1 , wherein the deflector is formed from a polymeric material.5. The deflector of claim 4 , wherein the polymeric material is a polyamide.6. The deflector of claim 1 , wherein the deflector is formed from a metal.7. An oil deflector-bearing assembly comprising:a bearing;a ring-shaped oil deflector having a first face with an axial projection extending from the first face and an opposite second face; anda carrier comprising a plurality of radial oil grooves, wherein the second face of the oil deflector is disposed adjacent to an axial face of the bearing and the carrier is disposed adjacent to the oil deflector so that the projection is at least partially received in one of the oil grooves for deflecting an axial flow of oil.8. The assembly of claim 7 , wherein the bearing claim 7 , oil deflector claim 7 , and the carrier are concentrically arranged.9. The assembly of claim 7 , wherein the projection has a radially inwardly facing deflection surface.10 ...

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09-02-2017 дата публикации

RADIAL NEEDLE BEARING WITH FLANGE CUTOUTS

Номер: US20170037904A1
Автор: Makke Alaa, Poole Victoria
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

The disclosure describes an outer raceway for a rolling element bearing that contains lubrication cutouts in at least one of the side walls. These lubrication cutouts provide for an increased amount of oil or lubrication to access the critical rolling element interfaces. 1. A bearing assembly comprising: an inner radial surface;', 'an outer radial surface;', 'a first flange at a first axial end extending radially inward;', 'a second flange at a second axial end extending radially inward; and', 'at least one cutout defined by at least one of the first and the second flanges; and, 'an outer ring; having 'a plurality of rolling elements disposed within the cage.', 'a cage; having2. The bearing assembly of claim 1 , wherein the first flange defines at least one cutout and second flange defines at least one cutout.3. The bearing assembly of claim 1 , wherein the at least one cutout defined by the first flange is a plurality of cutouts.4. The bearing assembly of claim 1 , wherein the at least one cutout defined by the second flange is a plurality of cutouts.5. The bearing assembly of claim 1 , wherein the outer ring material is steel.6. A method of forming an outer ring for a bearing claim 1 , comprising the steps of:blanking a metal disk;drawing the metal disk into a final cup shape in multiple steps; andforming a first flange at the bottom of the cup with at least one cutout.7. The method of wherein the blanking step also produces at least one cutout on the circumference of the metal disk.8. The method of further comprising grinding at least one cutout on the circumference of the metal disk.9. The method of wherein the forming step is accomplished by piercing.10. The method of wherein the at least one cutout is formed by a grinding process.11. The method of wherein the at least one cutout is formed by a shearing process.12. The method of wherein the at least one cutout is formed by a punching process.13. A method of forming an outer ring for a bearing claim 6 , ...

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06-02-2020 дата публикации

RADIAL ROLLER BEARING CAGE

Номер: US20200040945A1
Автор: YAMASHITA Kotaro
Принадлежит: JTEKT CORPORATION

A radial roller bearing cage made of metal includes annular rim portions; and a retaining portion including cage bars. Each of the cage bars includes a body portion connecting the rim portions to each other, and projected portions. On an outer peripheral side of the retaining portion, at least a portion of an outer surface of the body portion is a curved surface having the same diameter as a diameter of an outer peripheral surface of each of the rim portions. In an outer surface of each of the projected portions on the outer peripheral side of the retaining portion, at least a portion on a distal end side in a projected direction is located radially inward of the outer peripheral surface of each of the rim portions. 1. A radial roller bearing cage made of metal , the radial roller bearing cage comprising:a pair of rim portions concentrically disposed so as to be away from each other in an axial direction, each of the rim portions having an annular shape; anda retaining portion that includes a plurality of cage bars provided between the rim portions at equally-spaced intervals in a circumferential direction, whereinpockets are provided among the cage bars, and a plurality of rollers are respectively retained in the pockets so as to be rollable,each of the cage bars includes a body portion connecting the rim portions to each other, and projected portions each of which is projected from an inner surface of a corresponding one of the pockets in the body portion to prevent the roller from coming off from the corresponding one of the pockets,on an outer peripheral side of the retaining portion, at least a portion of an outer surface of the body portion is a curved surface having the same diameter as a diameter of an outer peripheral surface of each of the rim portions, andin an outer surface of each of the projected portions on the outer peripheral side of the retaining portion, at least a portion on a distal end side in a projected direction is located radially inward of ...

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18-02-2021 дата публикации

BEARING STRUCTURE

Номер: US20210048069A1
Принадлежит: IHI CORPORATION

Provided is a bearing structure, including: a damper groove formed in at least one of an outer peripheral surface of an outer ring of a rolling bearing or an inner peripheral surface of a bearing hole so as to extend in a circumferential direction of a shaft; and a second oil drain hole having one end communicating with the damper groove, and another end opened to an outside of a cylindrical portion. 1. A bearing structure , comprising:a housing including a cylindrical portion having a bearing hole;a communication hole that is formed in the housing, and is configured to allow communication between the bearing hole and a lubricating-oil supply oil passage;a rolling bearing that is arranged in the bearing hole, a shaft being inserted through the rolling bearing;a damper groove formed in at least one of an outer peripheral surface of an outer ring of the rolling bearing or an inner peripheral surface of the bearing hole so as to extend in a circumferential direction of the shaft; andan oil drain hole having one end communicating with the damper groove, and another end opened to an outside of the cylindrical portion;wherein an oil-drain-hole smallest flow passage sectional area that is smallest in a flow passage sectional area of the oil drain hole is equal to or smaller than an area obtained by subtracting one-side smallest gap area that is smallest in a gap area defined between the outer ring and the inner peripheral surface of the bearing hole on one side of the damper groove in an axial direction of the shaft and another-side smallest gap area that is smallest in a gap area defined between the outer ring and the inner peripheral surface of the bearing hole on another side of the damper groove in the axial direction from a communication-hole smallest flow passage sectional area that is smallest in a flow passage sectional area of a communication hole.2. The bearing structure according to claim 1 , wherein the one end of the oil drain hole is formed at a position of ...

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18-02-2016 дата публикации

BEARING ASSEMBLY WITH LUBRICANT/COOLANT PASSAGES

Номер: US20160047422A1
Автор: Duffy Kevin
Принадлежит:

A bearing assembly for mounting relative to a housing is provided that includes a bearing ring, a plurality of rotational members, and a bearing ring baffle. The bearing ring has a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of channels disposed in the first axial end of the ring. The bearing ring baffle has a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of fins extending out from the second axial end of the baffle. The fins and channels are configured to mate with one another and to create at least one passage there between, and the passage is con figured for the passage of lubricant there through. 1. A bearing assembly for mounting relative to a housing , comprising:a bearing ring having a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of channels disposed in the first axial end of the ring;a plurality of rotational members; anda bearing ring baffle having a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of fins extending out from the second axial end of the baffle;wherein the fins and channels are configured to mate with one another and to create at least one passage there between; andwherein the passage is configured for the passage of lubricant there through.2. The bearing assembly of claim 1 , wherein a radially innermost fin and a radially innermost channel are configured to form one or more exit apertures in fluid communication with a bearing compartment.3. The bearing assembly of claim 2 , wherein the one or more exit apertures are configured to create a flow restriction relative to the passage.4. The bearing assembly of claim 1 , wherein the bearing ring and the bearing ring baffle are circumferentially extending rings.5. The bearing assembly of claim 4 , wherein the fins and channels extend around the circumference of the bearing ring baffle and the ...

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16-02-2017 дата публикации

BEARING ASSEMBLY AND BEARING RING FOR ROTATABLY SUPPORTING A FIRST COMPONENT WITH RESPECT TO A SECOND COMPONENT, AND SCREW COMPRESSOR INCLUDING THE BEARING ASSEMBLY OR THE BEARING RING

Номер: US20170045087A1
Принадлежит: AKTIEBOLAGET SKF

A bearing assembly for rotatably supporting a first component with respect to a second component includes at least one bearing including a bearing ring, at least one further component, and at least one lubricant branch structure configured to carry a lubricant to the bearing and to the further component, wherein the lubricant branch structure is at least partially disposed in the bearing ring or the lubricant branch structure is at least partially disposed in a distributor piece directly abutting the bearing ring. 1. A bearing assembly for rotatably supporting a first component with respect to a second component , the bearing assembly comprising:at least one bearing including a bearing ring having a raceway;at least one further component; andat least one lubricant branch structure configured to lubricate the bearing and the further component,wherein the lubricant branch structure is at least partially disposed in the bearing ring or wherein a distributor piece directly abuts the bearing ring and the lubricant branch structure is at least partially disposed in the distributor piece.2. The bearing assembly according to claim 1 , wherein the lubricant branch structure is at least partially disposed in the distributor piece.3. The bearing assembly according to claim 2 , wherein the lubricant branch structure is configured to carry a lubricating medium claim 2 , and wherein the at least one bearing includes at least one lubrication opening through which the lubricating medium can enter into the bearing from the distributor piece.4. The bearing assembly according to claim 2 , wherein the distributor piece radially and/or axially abuts at least sectionally on the bearing ring.5. The bearing assembly according to claim 2 , further comprising a second bearing claim 2 , wherein the distributor piece abuts in the axial and/or in the radial direction at least sectionally on an outer ring of the second bearing.6. The bearing assembly according to claim 2 , wherein the bearing ...

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15-05-2014 дата публикации

LINEAR ACTUATOR

Номер: US20140133787A1
Принадлежит: SMC Kabushiki Kaisha

A linear actuator. On a guide block that configures a guide mechanism, a pair of ball-circulating grooves is formed on the lower surface that faces a cylinder body and multiple balls are loaded in the ball-circulating grooves. Paired cover blocks are respectively mounted on the two ends of the guide block. Paired ball clips, which are formed as arms, are engaged with the cover blocks when the clips are inserted in the ball-circulating grooves and are holding the balls. Paired cover plates are respectively mounted on the end faces of the cover blocks, and arm-shaped cover clips are mounted so as to hold the cover plates. The cover plates, the cover blocks and the guide block are thereby integrally linked. 1. A linear actuator in which a slide table is made to move reciprocally along an axial direction of a cylinder main body , comprising:a guide mechanism comprising a guide block attached to the cylinder main body and in which circulation grooves are formed through which a plurality of rolling bodies roll and circulate, and a cover member disposed on an end of the guide block, the guide mechanism guiding the slide table along an axial direction of the cylinder main body; anda retainer installed on the guide block, for retaining the rolling bodies freely circulatable in the circulation grooves, and for retaining the cover member with respect to the guide block,wherein the circulation grooves are formed to open in the guide block along a longitudinal direction thereof, and the retainer is disposed detachably with respect to the guide block.2. The linear actuator according to claim 1 , wherein the retainer comprises a retaining member for retaining the rolling bodies claim 1 , and the retaining member includes a rolling body retaining part that extends along the circulation grooves and retains the rolling bodies claim 1 , and a cover retaining part claim 1 , which is bent with respect to the rolling body retaining part and serves to retain the cover member.3. The linear ...

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10-03-2022 дата публикации

SYSTEM FOR LUBRICATING A SEALED BEARING AND ASSOCIATED METHOD

Номер: US20220074451A1
Автор: CHOQUET Eric, Robba Eric
Принадлежит:

A method for lubricating a sealed bearing providing a first ring and a second ring capable of rotating concentrically relative to one another, and seals delimiting together with the first and second rings a sealed chamber. The method includes a removing a first predetermined quantity of lubricant from the sealed chamber until the pressure in the sealed chamber reaches a first pressure value, and then injecting a second predetermined quantity of lubricant in the sealed chamber until the pressure in the sealed chamber reaches a second pressure value, the first pressure value and the second pressure value being determined so that the pressure inside the sealed chamber remains within a predetermined interval, the boundaries of the interval being determined according to characteristics of the seals so that the sealed chamber remains waterproof to the lubricant when lubricant is removed from or injected in the sealed chamber. 1. A method for lubricating a sealed bearing comprising:providing a first ring and a second ring capable of rotating concentrically relative to one another, and seals delimiting together with the first and second rings a sealed chamber, the method further comprising:a) a first step of removing a first predetermined quantity of lubricant from the sealed chamber until the pressure in the sealed chamber reaches a first pressure value, andb) a second step of injecting a second predetermined quantity of lubricant in the sealed chamber until the pressure in the sealed chamber reaches a second pressure value, the first pressure value and the second pressure value being determined so that the pressure inside the sealed chamber remains within a predetermined interval, boundaries of the interval being determined according to characteristics of the seals so that the sealed chamber remains waterproof to the lubricant when lubricant is removed from or injected in the sealed chamber.2. The method according to claim 1 , wherein injecting the predetermined quantity ...

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02-03-2017 дата публикации

STATIONARY BEARING RACE WITH UNIFORM DISTRIBUTION OF WEAR

Номер: US20170058957A1
Автор: Messinger Samuel
Принадлежит:

A load bearing system with controlled movement of a stationary bearing race to distribute load and wear over the load bearing surface and increase bearing life. The system includes an inner race and an outer race which are predictably rotatable relative to one another about an axis. The system uses oil holes and other holes to place balls and spring loaded ball assemblies to facilitate movement as well as gears strategically placed in the stationary race with timer mechanisms to rotate the races relative to one another as desired. 1. A rotary bearing system comprising:inner and outer races which are rotatable relative to one another about an axis, said inner and outer races having bearing elements located in a rolling space between said inner and outer races;at least one lubrication hole in the outer race for distributing lubricant oils;at least one preloaded rolling element located in at least one of the lubrication holes of the outer race; anda bearing housing securing the outer race and adjacent to the at least one preloaded rolling element in at least one of the lubrication holes of the outer race to exert outward force on the bearing housing and create a deflection of the outer race to move or rotate relative to said inner race.2. The system of claim 1 , wherein the outer race further comprises a gear for moving the outer race relative to the inner race.3. The system of claim 2 , further comprising a gear drive and a timer for intermittently moving said outer race.4. The system of claim I claim 2 , wherein said at least one preloaded rolling element includes a spherical element with at least one dimple to allow lubricant oils to pass from one side of the race to another to enable the bearing elements to roll freely in the rolling space.5. The system of claim 1 , wherein the inner race further comprises a gear for moving the inner race relative to the outer race and a gear drive and a timer are connected to said gear for intermittently moving said inner race.6. ...

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20-02-2020 дата публикации

BALL BEARING

Номер: US20200056661A1
Принадлежит: NTN CORPORATION

A ball bearing is provided which includes inner and outer races each having a raceway groove; balls; and a retainer made of a synthetic resin, and in which abnormal noise is reduced. Either the raceway groove of the inner race, or each of the raceway grooves of the inner race and the outer race has a radius of curvature which is 104% or more and 109% or less of the radius of each of the balls. 1. A ball bearing comprising:an inner race including a raceway groove in an outer periphery of the inner race;an outer race including a raceway groove in an inner periphery of the outer race;a plurality of balls disposed between the raceway groove of the inner race and the raceway groove of the outer race; anda retainer made of a synthetic resin, and constituted by two annular members identical in shape to each other, the retainer retaining the balls,wherein either the raceway groove of the inner race, or each of the raceway grooves of the inner race and the outer race has a radius of curvature which is 104% or more and 109% or less of a radius of each of the balls.2. The ball bearing according to claim 1 , further comprising a grease around the balls claim 1 ,wherein the grease comprises a base oil; a thickening agent; and an additive selected from the group consisting of alkanolamines and molybdates,{'sup': '2', 'wherein the base oil comprises a poly-α-olefin oil having a kinematic viscosity of 30 to 70 mm/s at 40 degrees Celsius,'}wherein the thickening agent comprises a diurea compound obtained by reacting a diisocyanate component with a monoamine component,wherein the monoamine component comprises an aliphatic monoamine and an alicyclic monoamine, andwherein a content of the additive is 0.1 parts by mass or more and 10 parts by mass or less with respect to 100 parts by mass of a total amount of the base oil and the thickening agent. The present invention relates to a ball bearing including a retainer made of a synthetic resin.Generally, ball bearings include an inner race ...

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08-03-2018 дата публикации

Oil Supply Device and Linear Motion Guide Device

Номер: US20180066709A1
Автор: YAMAGISHI Nobuaki
Принадлежит:

An oil supply device provided on a slider main body of a linear motion guide device includes: a storing member; an applicator; and a container. In the container, a storing member accommodation portion and an applicator accommodation portion are provided to be arranged in an up-down direction. A communication hole for guiding the lubricant from the storing member accommodation portion to the applicator accommodation portion is formed in the up-down direction in a partition portion which partitions the applicator accommodation portion and the storing member accommodation portion. The communication hole includes a small diameter portion which is positioned on the applicator accommodation portion side and a large diameter portion which is positioned on the storing member accommodation portion side. The storing member includes a protrusion portion capable of fitting into the large diameter portion. 1. An oil supply device comprising:a storing member which holds a lubricant;an applicator for applying the lubricant to a guide rail; anda container which accommodates the applicator and the storing member and is installed on an end portion in a longitudinal direction of a slider,wherein in the container, a storing member accommodation portion which accommodates the storing member and an applicator accommodation portion which accommodates the applicator are provided to be arranged in an up-down direction and a communication hole for guiding the lubricant from the storing member accommodation portion to the applicator accommodation portion is formed in a partition portion which partitions the applicator accommodation portion and the storing member accommodation portion,wherein the communication hole includes a small diameter portion which is positioned on the applicator accommodation portion side and a large diameter portion which is positioned on the storing member accommodation portion side and is larger than the small diameter portion, andwherein the storing member is ...

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17-03-2016 дата публикации

NEEDLE ROLLER CAGE WITH OIL SLOTS

Номер: US20160076593A1
Автор: Roffe Dennis
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A roller bearing cage and a roller bearing assembly are provided. The roller bearing cage has a cylindrical body formed with a plurality of pockets and a first cage rim at a first axial end of the body, the first cage rim including one or more axial passages. The cage has a second cage rim at a second axial end of the body, the second cage rim including one of more second axial passages. 1. A roller bearing cage comprising:a cylindrical body formed with a plurality of pockets;a first cage rim at a first axial end of the body, the first cage rim including first axial passages; anda second cage rim at a second axial end of the body, the second cage rim including second axial passages.2. The cage of claim 1 , wherein the first axial passages are distributed around an inner perimeter of the first cage rim and the second axial passages are distributed around an inner perimeter of the second cage rim.3. The cage of claim 2 , wherein the first axial passages are uniformly angularly spaced apart and the second axial passages are uniformly angularly spaced apart.4. The cage of wherein the first and the second axial passages and a pocket formed therebetween are positioned with the same angular displacement around the roller bearing cage.5. The cage of claim 1 , wherein a common wall forms a periphery of the first axial passage claim 1 , the second axial passage claim 1 , and a pocket formed therebetween.6. A roller bearing assembly comprising:a roller bearing cage having a cylindrical body formed with a plurality of pockets;a first cage rim at a first axial end of the body, the first cage rim including first axial passages; anda second cage rim at a second axial end of the body, the second cage rim including second axial passages; andcylindrical rollers disposed in at least some of the pockets.7. The assembly of claim 6 , wherein the first axial passages are distributed around an inner perimeter of the first cage rim and the second axial passages are distributed around an ...

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12-06-2014 дата публикации

Guide carriage

Номер: US20140161377A1
Принадлежит: ROBERT BOSCH GMBH

A guide carriage can be moved on a guide rail to form a linear roller bearing. The guide carriage has four endlessly revolving rows of rollers which are guided in respective roller tracks. The guide carriage has a central main body, which has two end sides that are spaced apart from each other in the direction of movement. On the two end sides of the main body is arranged a respective end cap bearing directly thereagainst or spaced apart therefrom. The rows of rollers are deflected in the end caps. A branching lubricant line is provided between a lubricant input, which is provided on an outer side of at least one end cap, and the four rows of rollers or the four roller tracks. Two or four internal nonreturn valves having a respective closing body, the opening direction of which nonreturn valves corresponds to the conveying direction, are provided in the lubricant line in the interior of the end cap or between the end cap and the main body.

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12-03-2020 дата публикации

POWER TRANSMISSION DEVICE FOR VEHICLE

Номер: US20200080595A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A power transmission device for a vehicle includes a support member; a first bearing rotatably supporting a first rotation shaft with respect to the support member; a second bearing, provided adjacent to the first bearing, rotatably supporting a second rotation shaft with respect to the support member, the second rotation shaft being rotated around an axis line same as an axis line of the first rotation shaft; and a partition wall formed in the support member and including a notch. Further, the support member includes an oil gallery to supply lubricating oil into a space formed between the first bearing and the second bearing, the space is partitioned into a first space on a side of the first bearing and a second space on a side of the second bearing by the partition wall, and the oil gallery is formed to eject the lubricating oil toward the notch. 1a support member;a first bearing configured to rotatably support a first rotation shaft with respect to the support member;a second bearing, provided adjacent to the first bearing, configured to rotatably support a second rotation shaft with respect to the support member, the second rotation shaft being rotated around an axis line same as an axis line of the first rotation shaft; anda partition wall that is formed in the support member and includes a notch,wherein the support member includes an oil gallery to supply a lubricating oil into a space formed between the first bearing and the second bearing,the space is partitioned into a first space on a side of the first bearing and a second space on a side of the second bearing by the partition wall, andthe oil gallery is formed to eject the lubricating oil toward the notch.. A power transmission device for a vehicle comprising: The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2018-168995 filed in Japan on Sep. 10, 2018.The present disclosure relates to a power transmission device for a vehicle. ...

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02-04-2015 дата публикации

LINEAR GUIDEWAY AND END CAP MODULE THEREOF

Номер: US20150093053A1
Автор: Liao Wen-Pin
Принадлежит: OME TECHNOLOGY CO., LTD.

An end cap module of a linear guideway for being installed on a sliding block, comprises: a cap having an oil-input hole and a resilient dustproof member installed on the cap. The dustproof member has an oil-guiding passage concavely formed on a surface thereof and communicated with the oil-input hole. When the end cap module is installed on the sliding block, the dustproof member is clipped between the cap and the sliding block. Thus, the instant disclosure provides the end cap module for reducing the design difficulty and producing difficulty of the cap. Moreover, the instant disclosure also provides a linear guideway. 1. A linear guideway , comprising:a guide rail having two opposite rolled grooves;a sliding block having a mating trough slidably sleeved at the guide rail, the sliding block having four accommodating channels penetrating two opposite portions thereof and respectively arranged at two opposite sides of the mating trough; two circulation tubes respectively coupling through two adjacent accommodating channels, each circulation tube partially protruding out of the sliding block; and', 'two rolling units respectively arranged into the circulation tubes, wherein part of each rolling unit is arranged out of the corresponding circulation tube and clipped between the guide rail and the sliding block,', 'wherein a portion of each circulation tube protruding out of the sliding block has an oil-guiding opening, each oil-guiding opening is communicated with the inner space of the corresponding circulation tube, and the oil-guiding openings of each circulation module are arranged adjacent to each other;, 'two circulation modules respectively fixed on the opposite portions of the sliding block, each circulation module comprisingtwo retainers respectively arranged in the rolled grooves of the guide rail and installed on the sliding block, wherein the retainers are configured to position and keep the positions of the circulation modules with respect to the guide ...

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21-03-2019 дата публикации

TANDEM BALL BEARING WITH LABYRINTH OIL PATH AND METHOD THEREOF

Номер: US20190085897A1
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A tandem ball bearing, including: an axis of rotation; outer and inner races; a cage radially disposed between the inner and outer races and including a surface, the surface facing at least partially in a first axial direction and bounding a portion of the cage extending furthest in the first axial direction; a first roller ball disposed in the cage and radially disposed between the inner and outer races; a second roller ball disposed in the cage radially outwardly of the first roller ball; and a channel bounded by the inner race and the cage and including an opening facing in the first axial direction and bounded by the inner race and the first surface of the cage. A first line, in a second axial direction, opposite the first axial direction, passes through in sequence: the cage; the channel; the inner race; and the first roller ball. 1. A tandem ball bearing , comprising:an axis of rotation;an outer race;an inner race located radially inwardly of the outer race; facing at least partially in a first axial direction, parallel to the axis of rotation; and,', 'bounding a portion of the cage extending furthest in the first axial direction;, 'a cage radially disposed between the inner and outer races and including a first surface, the first surfacea first roller ball disposed in the cage and radially disposed between the inner and outer races;a second roller ball disposed in the cage radially outwardly of the first roller ball; and, bounded by the inner race and the cage; and,', 'including an opening facing in the first axial direction and bounded by the inner race and the first surface of the cage, wherein a first line, parallel to the axis of rotation, passes through in sequence: the cage; the channel; the inner race; and the first roller ball., 'a channel2. The tandem ball bearing of claim 1 , wherein a second line claim 1 , orthogonal to the axis of rotation claim 1 , passes through in sequence: the inner race claim 1 , the channel claim 1 , and the cage claim 1 , ...

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19-06-2014 дата публикации

Journal Bearing Device

Номер: US20140169712A1
Принадлежит: Hitachi, Ltd.

In a journal-bearing device for bearing a rotary shaft of a rotary machine, including an upper-bearing liner, a lower-bearing liner connected to a lower part of the upper-bearing liner, and an oil removing groove provided in a sliding surface of the lower-bearing liner and extending to both bearing side surfaces from a center portion in a bearing-width direction, the oil removing groove is provided on a downstream side in a rotary shaft-rotation-direction relative to an oil-film-pressure producing portion of the sliding surface of the lower-bearing liner, an end portion of the oil removing groove in the bearing-width direction is arranged on the rotation direction downstream side relative to a center portion of the groove in the bearing-width direction, and the journal-bearing device has a sliding surface on a downstream side of the oil removing groove of the lower-bearing liner in the rotary-shaft rotation direction. 1. A journal bearing device for supporting a rotary shaft of a rotary machine , comprising:an upper bearing liner; anda lower bearing liner connected to a lower part of the upper bearing liner, andwherein an oil removing groove is provided in a sliding surface of the lower bearing liner,the oil removing groove extends to both bearing side surfaces from a center portion in a bearing width direction,the oil removing groove is provided on a downstream side in a rotary shaft-rotation-direction relative to an oil film pressure producing portion of the sliding surface of the lower bearing liner,an end portion of the oil removing groove in the bearing width direction is arranged on the rotation direction downstream side relative to a center portion of the groove in the bearing width direction, andthe journal bearing device has the sliding surface on a downstream side of the oil removing groove of the lower bearing liner in the rotary shaft-rotation-direction.2. The journal bearing device according to claim 1 ,wherein the oil removing groove is arranged at a ...

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16-04-2015 дата публикации

LUBRICATION OF POWER TRANSFER COMPONENTS

Номер: US20150104127A1
Принадлежит: Deere & Company

An apparatus for lubricating power transfer components is described. The apparatus includes a first shaft enclosed by a housing with a main cavity, and an inboard bearing and an outboard bearing supporting the first shaft. An inboard bearing cavity and an outboard bearing cavity surround, respectively, the inboard and outboard bearings. Lubrication fluid flows from an entrance port in the housing, through a flow passage within a wall of the housing to the inboard bearing cavity, through a flow passage within the first shaft from the inboard bearing cavity to the outboard bearing cavity, and through an overflow port in a wall of the outboard bearing cavity. A second shaft provides rotational power to the first shaft (e.g., via an idler gear). A lubrication deflector, such as a frustoconical deflector, surrounds a portion of a second shaft and extends into the main cavity of the housing. 1. A lubrication apparatus for lubricating one or more power transfer components , the lubrication apparatus comprising:a first shaft enclosed, at least in part, by a housing having a first cavity;an inboard bearing rotatably supporting the first shaft;an inboard bearing cavity surrounding, at least in part, the inboard bearing;an outboard bearing rotatably supporting the first shaft;an outboard bearing cavity defined, at least in part, by a first internal flange of the housing, the outboard bearing cavity surrounding, at least in part, the outboard bearing;an entrance port to the housing, the entrance port being in fluid communication with a lubrication fluid flow source;a first flow passage, contained within a wall of the housing, and extending from the entrance port to the inboard bearing cavity;a second flow passage, contained within the first shaft, and extending from the inboard bearing cavity to the outboard bearing cavity; andan overflow port through the first internal flange of the housing, the overflow port extending between the outboard bearing cavity and the first cavity; ...

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14-04-2016 дата публикации

ROLLING BEARING DEVICE

Номер: US20160102710A1
Принадлежит: JTEKT CORPORATION

A lubricant supply unit that supplies lubricating oil to a raceway groove of an inner ring is fixed to an outer ring. The lubricant supply unit is provided with a first and second radially separated electrodes used to supply electric power from an external power source to the micropump. Each of the first and second radially separated electrodes is fixed to an outer face of a tank that is stationary relative to the micropump so as to be exposed on the outside of the lubricant supply unit. The first radially separated electrode is arranged so as to be apart from the second radially separated electrode. 1. A rolling bearing device comprising:a first bearing ring having an inner periphery raceway surface;a second bearing ring having an outer periphery raceway surface;a plurality of rolling elements disposed between the inner periphery raceway surface of the first bearing ring and the outer periphery raceway surface of the second bearing ring; anda lubricant supply unit having at least a tank and a pump that supplies lubricant to at least one of the inner periphery raceway surface of the first bearing ring, the outer periphery raceway surface of the second bearing ring, and the rolling elements, whereinthe lubricant supply unit has one or more electrodes to which electric power is supplied from an external power source, and a part of the lubricant supply unit is fixed to one member out of the first bearing ring and the second bearing ring, andeach of the one or more electrodes is fixed to the one member or the lubricant supply unit, in a state where each of the one or more electrodes is exposed on an outside of the one member or the lubricant supply unit, andeach of the one or more electrodes is fixed to a peripheral face of the one member out of the first bearing ring and the second bearing ring, or an end face of the one member out of the first bearing ring and the second bearing ring.2. The rolling bearing device according to claim 1 , wherein:the electrodes include a ...

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21-04-2016 дата публикации

ROLLING ELEMENT BEARING WITH CAGE

Номер: US20160108964A1
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A rolling element bearing () that includes a plurality of balls () as rolling elements guided in a cage (). A lubricant channel () is formed in snap-in pockets () in a region between a lateral ring section () and the central ball () track, between the ball () and the adjoining web section () and/or the adjoining lateral ring section (), which fluidically connects the radial outer side and the radial inner side of the cage (). In order for the rolling element bearing () lubricant supply to be improved, on the web sections (), an outer block section () is formed on the radial outer side and/or an inner block section () is formed on the radial inner side, which project relative to the lateral ring section (), in the radial direction in relation to the bearing axis L, and reduce the available rolling element space between two adjoining balls (). 1. A rolling element bearing comprising a plurality of balls rolling elements , a cage that guides the balls , the cage including a side ring section and a plurality of web sections that are arranged on the side ring section and form snap-in pockets , one of the balls is arranged in each of the snap-in pockets and is held captively by a positive-fit connection , the cage defines a bearing axis (L) , and in each of the snap-in pockets , in an area between the side ring section and a ball center track of the balls between the ball and at least one of the adjacent web section or the adjacent side ring section , a lubricant channel is formed that connects a radial outer side and a radial inner side of the cage in terms of flow , an outer block section is formed on the web sections on the radial outer side or an inner block section is formed on the radial inner side , or both the outer block section and the inner block section are formed , and said inner or outer block section , or both , projects relative to the side ring section with respect to the bearing axis (L) in a radial direction and reduces an available rolling element ...

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03-07-2014 дата публикации

LIQUID-LUBRICATED BEARING AND VEHICLE PINION SHAFT SUPPORT DEVICE

Номер: US20140187374A1
Автор: Murakami Masayuki
Принадлежит: JTEKT CORPORATION

An outer lubricating liquid inflow passage that provides communication between an outside of a liquid-lubricated bearing and a rolling element arrangement chamber is formed between an outer ring and a cage, on the lubricating liquid inflow side. The outer lubricating liquid inflow passage has an annular axially extending outer passage portion that extends in the axial direction, and an annular radially extending outer passage portion. The radially extending outer passage portion communicates with a rolling element-side axial end portion of the axially extending outer passage portion. The radially extending outer passage portion extends from the axially extending outer passage portion to the rolling element arrangement chamber inward in the radial direction of the outer ring. A labyrinth is formed by the axially extending outer passage portion and the radially extending outer passage portion. 1. A liquid-lubricated bearing comprising:an inner ring having a raceway surface formed in an outer peripheral face of the inner ring;an outer ring disposed radially outward of the inner ring, and having a raceway surface formed in an inner peripheral face of the outer ring;rolling elements disposed between the raceway surface of the inner ring and the raceway surface of the outer ring; anda cage having pockets that accommodate the rolling elements, whereinlubricating liquid flows through a space between the outer ring and the cage from one side in an axial direction of the liquid-lubricated bearing to the other side in the axial direction,an outer lubricating liquid inflow passage that provides communication between an outside of the liquid-lubricated bearing and a rolling element arrangement chamber in which the rolling elements are arranged, is formed between the outer ring and the cage, on a lubricating liquid inflow side in the axial direction, an annular axially extending outer passage portion that extends in the axial direction, and', 'an annular radially extending outer ...

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18-04-2019 дата публикации

ROLLING BEARING DEVICE AND METHOD OF DETECTING ABNORMALITY OF BEARING PORTION

Номер: US20190113081A1
Принадлежит: JTEKT CORPORATION

A rolling bearing device includes: a bearing portion; an oil supply unit that has a pump; a first detection portion that detects operation of the pump; a second detection portion that detects the rotational state of the bearing portion; and a processing portion that generates determination information related to the lubrication state of the bearing portion on the basis of a detection signal from the first detection portion and a detection signal from the second detection portion. The processing portion outputs, to the pump, an instruction signal for oil supply when it is determined that operation of the pump is appropriate and that the rotational state of the bearing portion is not appropriate, and re-determines, after the lapse of a predetermined time, whether or not the rotational state of the bearing portion is appropriate. 1. A rolling bearing device comprising:a bearing portion that has an inner ring, an outer ring, and a plurality of rolling elements provided between the inner ring and the outer ring;an oil supply unit that has a pump that supplies lubricating oil to an annular space formed between the inner ring and the outer ring;a first detection portion that detects operation of the pump;a second detection portion that detects a rotational state of the bearing portion; anda processing portion that generates determination information related to a lubrication state of the bearing portion on the basis of a detection signal from the first detection portion and a detection signal from the second detection portion, wherein:the processing portion has a first function of determining whether or not the operation of the pump is appropriate on the basis of the detection signal from the first detection portion, and a second function of determining whether or not the rotational state of the bearing portion is appropriate on the basis of the detection signal from the second detection portion; andthe processing portion further has a third function of outputting, to the ...

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05-05-2016 дата публикации

METHOD FOR CONTROLLING THE INTRODUCTION OF ADDITIONAL LUBRICANT INTO A BEARING LUBRICATED WITH A LUBRICANT, IN PARTICULAR A ROLLING BEARING OR PLAIN BEARING

Номер: US20160123530A1
Автор: FASSBINDER Michael
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A method for controlling the introduction of additional lubricant () into a bearing () lubricated with a lubricant (), in particular a rolling bearing or plain bearing, comprising the following steps is provided:—determining lubricant state information describing the state, in particular the chemical composition, of the lubricant () contained in the bearing () and—controlling the introduction of additional lubricant () into the bearing () depending on the state, which is described by the determined lubricant state information, of the lubricant () contained in the bearing (). 19-. (canceled)10. A method for controlling introduction of additional lubricant into a bearing lubricated with a lubricant , comprising the following steps:ascertaining lubricant status information describing a status of the lubricant contained in the bearing; andcontrolling the introduction of the additional lubricant into the bearing as a function of the state of the lubricant contained in the bearing described by the ascertained lubricant status information.11. The method as recited in wherein lubrication intervals are established or predefined lubrication intervals of the bearing are changed within the scope of the control.12. The method as recited in wherein the controlling includes establishing an additional lubricant quantity to be introduced into the bearing or changing a predefined additional lubricant quantity to be introduced into the bearing.13. The method as recited in wherein the lubricant status information is ascertained via spectroscopic analyses of the lubricant.14. The method as recited in wherein the spectroscopic analyses include infrared spectroscopic analyses of the lubricant.15. The method as recited in wherein the lubricant status information indirectly or directly describes a chemical composition of the lubricant.16. The method as recited in wherein the lubricant status information is ascertained continuously.17. The method as recited in wherein the lubricant status ...

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25-08-2022 дата публикации

MOTION GUIDING DEVICE AND LUBRICATION PATH COMPONENT USED IN MOTION GUIDING DEVICE

Номер: US20220268314A1
Принадлежит: THK CO., LTD.

A motion guiding device includes a supporting body and a moving body. The moving body includes a moving body main body, a cover body and a circulation component. The cover body includes a first lubrication groove. The motion guiding device is further provided with a lubrication path component, the lubrication path component including a second lubrication groove having a cross-sectional area less than that of the first lubrication groove. When a lubricating oil is used as the lubricant, the lubricant is supplied by a lubricating oil lubrication path formed by the first lubrication groove and the second lubrication groove. In this way, in the motion guiding device, the lubrication path may be widened when the lubricating grease is used to lubricate, while the lubrication path may be narrowed when the lubricating oil is used to lubricate, so that a good lubrication may be easily achieved. 1. A motion guiding device comprising a supporting body and a moving body , wherein the supporting body comprises a rolling element rolling groove formed on left and right side surfaces in a longitudinal direction , and the moving body is relatively movably assembled to the supporting body via a plurality of rolling elements ,the moving body comprises: a moving body main body, a cover body fixed to front and rear end surfaces of the moving body main body; and a circulation component provided between the moving body main body and the cover body, wherein the moving body main body is provided with a loaded rolling element rolling groove and a non-loaded passage, the loaded rolling element rolling groove is arranged opposite to the rolling element rolling groove so as to form a loaded rolling path for a roll of the rolling element, and the non-loaded passage is formed in parallel with the loaded rolling path and configured for the roll of the rolling element,the motion guiding device is provided with a direction change path for connecting the loaded rolling path and the non-loaded passage ...

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25-04-2019 дата публикации

BEARING LUBRICATOR, CONTROLLER AND ASSOCIATED METHOD

Номер: US20190120425A1
Принадлежит:

A bearing lubricator for lubricating a plurality of device bearings in a device includes a solitary monitored bearing and at least one unmonitored bearing. The bearing lubricator includes a reservoir configured to contain lubricant, a plurality of conduits connecting the reservoir to the plurality of bearing, and a mechanism connected to the reservoir for advancing the lubricant from the reservoir to the plurality of device bearings when actuated. The bearing lubricator further includes a solitary sensor for sensing a variable of the monitored bearing and a controller. The controller stores a triggering value of the variable of the monitored bearing. The mechanism advances a substantially identical quantity of the lubricant from the reservoir to each of the plurality of bearings when a signal indicative of the variable is advanced to the controller and when that signal indicates the triggering value of the variable has been met. 1. A bearing lubricator for lubricating a plurality of device bearings in a device , the plurality of device bearings including a solitary monitored bearing and at least one unmonitored bearing , said bearing lubricator comprising:a reservoir configured to contain lubricant;a plurality of conduits connecting the reservoir to the plurality of device bearings;a mechanism connected to the reservoir for advancing the lubricant from the reservoir to the plurality of device bearings when actuated;a solitary sensor for sensing a variable of the monitored bearing; anda controller, said controller stores a triggering value of the variable of the monitored bearing, said controller further actuates the mechanism to advance a substantially identical quantity of the lubricant from the reservoir to each of the plurality of device bearings when a signal indicative of the variable is advanced to the controller and when that signal indicates the triggering value of the variable has been met.2. The bearing lubricator in accordance with claim 1 , wherein the ...

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16-05-2019 дата публикации

RELEASE BEARING COVER AND WASHER SEAL

Номер: US20190145464A1
Принадлежит: Eaton Intelligent Power Limited

A cover comprises a substrate and a grease lid. The substrate comprises a main body comprising a branched grease pathway, a locating side comprising a grease supply port, and a lubricating side comprising a plurality of grease ports. The grease lid constrains the branched grease pathway and is configured so that when grease enters the locating side grease supply port, the grease traverses the branched grease pathway and exits the grease ports. 1. A cover , comprising: a main body comprising a branched grease pathway;', 'a locating side comprising a grease supply port; and', 'a lubricating side comprising a plurality of grease ports; and, 'a substrate comprisinga grease lid constraining the branched grease pathway and configured so that when grease enters the locating side grease supply port, the grease traverses the branched grease pathway and exits the grease ports.2. The cover of claim 1 , wherein the branched grease pathway further comprises a grease funnel in fluid communication with the grease port3. The cover of claim 1 , wherein the grease supply port is perpendicular to the branched grease pathway.4. The cover of claim 1 , further comprising a grease trough intersecting the branched grease pathway.5. The cover of claim 4 , wherein the grease trough extends at least partially around the cover.6. The cover of claim 1 , wherein the substrate comprises an upper side and a lower side claim 1 , and wherein the lower side further comprises a positioning slot for receiving a washer seal.7. The cover of claim 1 , wherein the grease lid comprises lid main body and a mating branched grease pathway in the lid main body claim 1 , and wherein the mating branched grease pathway is coupled to the main body branched grease pathway.8. A release bearing assembly claim 1 , comprising:a bearing housing comprising a connection and a pathway through the connection for connecting to an injection nozzle;a bearing assembly within the bearing housing; and{'claim-ref': {'@idref': 'CLM- ...

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31-05-2018 дата публикации

ROLLING BEARING DEVICE AND OIL SUPPLY UNIT

Номер: US20180149200A1
Принадлежит: JTEKT CORPORATION

A rolling bearing device includes: a bearing portion that has an inner ring, an outer ring, a plurality of balls interposed between the inner ring and the outer ring, and a cage that holds the plurality of balls; and an oil supply unit provided adjacent to the bearing portion in the axial direction. The oil supply unit has a pump configured to supply lubricating oil to the bearing portion. The pump has a pump body provided with a nozzle that discharges lubricating oil and a vibration element that vibrates the pump body. 1. A rolling bearing device comprising:a bearing portion that has an inner ring, an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage that holds the plurality of rolling elements; andan oil supply unit provided adjacent to the bearing portion in an axial direction and having a pump configured to supply lubricating oil to the bearing portion, whereinthe pump has a pump body provided with a nozzle that discharges lubricating oil and a vibration element that vibrates the pump body.2. The rolling bearing device according to claim 1 , whereinthe nozzle is constituted of a through hole formed in a wall portion of the pump body, and the nozzle opens in a side surface of the wall portion.3. The rolling bearing device according to claim 2 , whereinthe vibration element generates vibration in a direction that is orthogonal to the side surface of the wall portion.4. The rolling bearing device according to claim 2 , whereinthe vibration element generates vibration in a direction that is parallel to the side surface of the wall portion.5. The rolling bearing device according to claim 2 , whereinthe side surface of the wall portion is a surface that faces a part of an annular space formed between the inner ring and the outer ring of the bearing portion.6. The rolling bearing device according to claim 1 , whereinthe pump body has an oil chamber that is connected to the nozzle and that stores lubricating oil ...

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31-05-2018 дата публикации

ROLLING BEARING DEVICE, OIL SUPPLY UNIT, METHOD OF SUPPLYING LUBRICATING OIL, AND PROGRAM

Номер: US20180149201A1
Принадлежит: JTEKT CORPORATION

A rolling bearing device includes: a bearing portion that has an inner ring, an outer ring, a plurality of balls, and a cage that holds the plurality of balls; and an oil supply unit that supplies lubricating oil to the bearing portion. The oil supply unit has: a pump that discharges the lubricating oil through drive of a piezo element; a voltage boost portion that boosts a voltage to be applied to the piezo element; and a control portion that causes the pump to operate while varying a voltage boost time included in a period since the start of voltage boost by the voltage boost portion until the start of the drive of the piezo element. 1. A rolling bearing device comprising:a bearing portion that has an inner ring, an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage that holds the plurality of rolling elements; andan oil supply unit provided adjacent to the bearing portion in an axial direction to supply lubricating oil to the bearing portion, wherein a pump that discharges the lubricating oil through drive of a piezo element;', 'a voltage boost portion that boosts a voltage to be applied to the piezo element; and', 'a control portion that causes the pump to operate while varying a voltage boost time included in a period since start of voltage boost by the voltage boost portion until start of the drive of the piezo element., 'the oil supply unit includes2. The rolling bearing device according to claim 1 , whereinthe control portion causes the pump to operate while varying the voltage boost time in accordance with temperature information.3. The rolling bearing device according to claim 1 , whereinthe control portion sets the voltage boost time, which is a changeable parameter, in accordance with temperature information.4. The rolling bearing device according to claim 1 , whereinthe control portion sets the voltage boost time, which is included in the period since the start of voltage boost by the voltage ...

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31-05-2018 дата публикации

ROLLING BEARING DEVICE

Номер: US20180149202A1
Принадлежит: JTEKT CORPORATION

A rolling bearing device includes a bearing portion and an oil supply unit provided adjacent, in the axial direction, to an annular space between an inner ring and an outer ring of the bearing portion to supply lubricating oil to the annular space. The oil supply unit includes an oil chamber that accommodates lubricating oil, a nozzle that discharges lubricating oil in the oil chamber, a pump body that applies a discharge force for causing lubricating oil in the oil chamber to fly from the nozzle toward the annular space, and a detection portion that detects gathering of lubricating oil at a discharge port of the nozzle. The detection portion includes a pair of electrodes disposed with the discharge port of the nozzle interposed therebetween, and a measurement portion that measures the capacitance of the pair of electrodes. 1. A rolling bearing device comprising:a bearing portion that has an inner ring, an outer ring, and a plurality of rolling elements interposed between the inner ring and the outer ring; andan oil supply unit provided adjacent, in an axial direction, to an annular space between the inner ring and the outer ring to supply lubricating oil to the annular space, wherein:the oil supply unit includes an oil chamber that accommodates lubricating oil, a nozzle that discharges lubricating oil in the oil chamber, a pump body that applies a discharge force for causing lubricating oil in the oil chamber to fly from the nozzle toward the annular space, and a detection portion that detects gathering of oil at a discharge port of the nozzle; andthe detection portion includes a pair of electrodes disposed with the discharge port of the nozzle interposed therebetween, and a measurement portion that measures a capacitance of the pair of electrodes.2. The rolling bearing device according to claim 1 , whereinthe pair of electrodes are disposed with a clearance from each other in a direction of a flow of air caused by rotation of the inner ring or the outer ring with ...

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09-06-2016 дата публикации

INTEGRAL OIL DAMPER AND JET FOR LUBRICATION OF BEARINGS AND SEALS

Номер: US20160160924A1
Автор: Meyers Gregory
Принадлежит: UNITED TECHNOLOGIES CORPORATION

A system for utilizing a pressurized fluid includes first, second, and third coaxially disposed body members, each having a cylindrical shape. The third body member is movable relative to the second body member. The second body member has walls that define a cavity between the first and second body members and a passage within the second body member that directs pressurized fluid from a cavity to the third body member. A method of utilizing a pressurized fluid includes providing a coupling and a housing having a cavity defined therebetween, supplying pressurized fluid to the cavity, and providing a first passage that extends from the cavity to a first axially-facing surface of the non-rotating component. The cross-sectional area defined perpendicular to a local flow direction is configured for choked flow within the first passage. 1. A system for utilizing a pressurized fluid comprises:a first body member;a second body member having walls that define a cavity between the first and second body members and a first passage within the second body member; anda third body member moveable relative to the second body member, wherein the first, second, and third body members are coaxially disposed, and wherein the first passage directs pressurized fluid from the cavity to the third body member.2. The system of claim 1 , wherein a surface of the first body member is spaced from an opposing surface of the second body member so as to define an annular gap in fluid communication with the cavity.3. The system of and further comprising:at least one seal disposed between the first and second body members and configured to retain the pressurized fluid within the cavity.4. The system of claim 1 , wherein the passage has a cross-sectional area defined perpendicular to a local flow direction of the pressurized fluid configured for choked flow within the passage.5. The system of claim 1 , wherein the walls of the second body member define a second passage extending from the cavity to a ...

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04-09-2014 дата публикации

ROLLING BEARING DEVICE

Номер: US20140248015A1
Принадлежит: JTEKT CORPORATION

A lubricant supply unit that supplies lubricating oil to a raceway groove of an inner ring is fixed to an outer ring. The lubricant supply unit is provided with a first and second radially separated electrodes used to supply electric power from an external power source to the micropump. Each of the first and second radially separated electrodes is fixed to an outer face of a tank that is stationary relative to the micropump so as to be exposed on the outside of the lubricant supply unit. The first radially separated electrode is arranged so as to be apart from the second radially separated electrode. 1. A rolling bearing device comprising:a first bearing ring having an inner periphery raceway surface;a second bearing ring having an outer periphery raceway surface;a plurality of rolling elements disposed between the inner periphery raceway surface of the first bearing ring and the outer periphery raceway surface of the second bearing ring; anda lubricant supply unit having at least a tank and a pump that supplies lubricant to at least one of the inner periphery raceway surface of the first bearing ring, the outer periphery raceway surface of the second bearing ring, and the rolling elements, whereinthe lubricant supply unit has one or more electrodes to which electric power is supplied from an external power source, and a part of the lubricant supply unit is fixed to one member out of the first bearing ring and the second bearing ring, andeach of the one or more electrodes is fixed to the one member or the tank of the lubricant supply unit, the tank being stationary relative to the pump, in a state where each of the one or more electrodes is exposed on an outside of the one member or the tank of the lubricant supply unit.2. The rolling bearing device according to claim 1 , wherein each of the one or more electrodes is fixed to a peripheral face of the tank claim 1 , an end face of the tank claim 1 , a peripheral face of the one member claim 1 , or an end face of the ...

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14-06-2018 дата публикации

TURBOCHARGER FOR INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE

Номер: US20180163785A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A turbocharger includes a turbine wheel, a shaft portion, and a bearing housing. The bearing housing has a drain passage and a drain groove. In a state where the turbocharger is mounted an internal combustion engine, a connecting portion at which the accommodation space is connected to the drain groove is provided in a fourth region located on a lower side with respect to a central axis of the accommodation space. Furthermore, an extension line of the drain groove and the central axis are skew lines. The extension line passes through a third region located on an upper side with respect to the central axis. 1. A turbocharger for an internal combustion engine comprising:a turbine wheel;a shaft portion coupled to the turbine wheel; and the bearing housing has a drain passage and a drain groove, the drain passage drains oil from the bearing housing, the oil is introduced into the accommodation space, the drain groove communicates the accommodation space with the drain passage,', 'in a state where the turbocharger is mounted the internal combustion engine, the accommodation space is partitioned into two regions by an imaginary plane including a reference line and a central axis of the accommodation space, the reference line is an imaginary line segment that extends vertically downward from the central axis and connects the central axis with an outer periphery of the accommodation space,', 'a first connecting portion at which the accommodation space is connected to the drain groove is provided in a vertically lower region with respect to the central axis within a downstream region when one of the two regions located within a region ahead of the reference line set as a start point in a rotational direction of the shaft portion is an upstream region and the other one of the regions is the downstream region,', 'the drain groove linearly extends from the first connecting portion toward the drain passage,', 'an extension line and the central axis are skew lines, the extension ...

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25-06-2015 дата публикации

SELF LUBRICATING ROBUST CENTRALIZER BEARING DESIGN AND METHOD OF USE

Номер: US20150176647A1
Принадлежит:

A bearing lubricating housing () comprising a lubricating housing body (). The bearing housing () is designed to retain a rolling element bearing assembly () while providing axial motion when the housing () is assembled within an interior of a guiding tube (). The bearing housing () includes a series of channels () and/or passageways () forming a lubrication matrix for collecting a lubricant from an interior surface () of the guiding tube () to the rolling element bearing assembly (). 1100200100. A bearing housing employed to automatically lubricate a retained bearing assembly , said bearing housing comprising:{'b': 110', '120', '200, 'a bearing lubricating housing body having an elongated tubular structure comprising an outer surface and an inner surface, wherein said bearing lubricating housing body inner surface comprises a bearing assembly radial seating surface that is sized and shaped to receive and radially retain a bearing assembly ,'}{'b': 190', '130', '190', '312', '300', '199, 'at least one sliding surface provided on said elongated tubular structure outer surface , wherein said at least one sliding surface is sized, shaped, and fabricated of a material suitable to slideably engage with an interior surface of a guiding tube along an axial direction ;'}{'b': 118', '130', '418, 'claim-text': an axial direction,', 'a spiraling direction, spiraling about at least a portion of an axial length of said elongated tubular structure outer surface,', 'a multi-directional pattern having grooves formed in both axial and circumferential directions, and', 'a multi-directional pattern having grooves formed in a first angled direction and a second, generally perpendicular angled direction; and, 'at least one lubrication collection groove formed on said elongated tubular structure outer surface , wherein said lubrication collection groove is arranged in at least one of{'b': 114', '118', '118', '120', '116', '116', '110, 'a radial conduit extending between a respective ...

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25-06-2015 дата публикации

BALL BEARING

Номер: US20150176650A1
Принадлежит:

A ball bearing includes an outer ring; an inner ring; a plurality of balls; and a cage that has an annular shape. Oil flows into an area between the outer ring and the inner ring from one side in an axial direction and flows out from the other side in the axial direction. The cage includes an annular portion provided on an oil inflow side, and bar portions extending from the annular portion toward an oil outflow side. An outer peripheral end portion of the annular portion is constituted by a corner portion at which an axial outer end face intersects with an outer peripheral surface. An axial position of a tip end of the corner portion is substantially same as an axial position of a side surface of the outer ring. 1. A ball bearing comprising:an outer ring;an inner ring;a plurality of balls disposed between the outer ring and the inner ring; anda cage that has an annular shape, and retains the balls at intervals in a circumferential direction, wherein:oil flows into an area between the outer ring and the inner ring from one side in an axial direction and flows out from the other side in the axial direction;the cage includes an annular portion provided on an oil inflow side, and bar portions extending from the annular portion toward an oil outflow side;an outer peripheral end portion of the annular portion is constituted by a corner portion at which an axial outer end face of the annular portion intersects with an outer peripheral surface of the annular portion; andan axial position of a tip end of the corner portion is substantially same as an axial position of a side surface of the outer ring.2. The ball bearing according to claim 1 , wherein the axial outer end face of the annular portion includes an outer inclined surface that is inclined toward an axial outer side in a direction toward a radial outer side.3. The ball bearing according to claim 2 , wherein the outer peripheral end portion of the annular portion is constituted by the corner portion at Which the ...

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23-06-2016 дата публикации

BEARING SYSTEM WITH LUBRICATION CONTROLLER

Номер: US20160178121A1
Принадлежит: LINCOLN INDUSTRIAL CORPORATION

A bearing system includes a bearing housing configured to house a bearing, the bearing housing enclosing a free volume for receiving lubricant, a quantity of the lubricant in the free volume, a sensor configured to measure at least one parameter affecting a degradation rate at which the lubricant will degrade and to produce at least one output signal indicative of the measured at least one parameter, a pump for pumping lubricant into the bearing housing, and a controller configured to receive the at least one output signal from the sensor and to control the pump based a function of the received at least one output signal. 1. A bearing system comprising:a bearing housing configured to house a bearing, the bearing housing enclosing a free volume for receiving lubricant;a quantity of the lubricant in the free volume;a sensor configured to measure at least one parameter affecting a degradation rate at which the lubricant will degrade and to produce at least one output signal indicative of the measured at least one parameter;a pump for pumping lubricant into the bearing housing; anda controller configured to receive the at least one output signal from the sensor, and to control the pump based a function of the received at least one output signal.2. The bearing system of claim 1 , wherein the at least one parameter comprises a property of the lubricant.3. The bearing system of claim 2 , wherein the at least one parameter comprises lubricant temperature.4. The bearing system of claim 2 , wherein the at least one parameter comprises a moisture content of the lubricant.5. The bearing system of claim 1 , wherein the at least one parameter comprises an operating state of the bearing.6. The bearing system of claim 1 , wherein the at least one parameter is a bearing speed and wherein the controller is configured to set a lubrication rate at which the pump dispenses lubricant as a first function of the bearing speed.7. The bearing system of claim 1 , wherein the at least one ...

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23-06-2016 дата публикации

METHOD OF CONTROLLING BEARING LUBRICATION SYSTEM

Номер: US20160178122A1
Принадлежит: LINCOLN INDUSTRIAL CORPORATION

A method includes providing a bearing housing configured to house a bearing, the bearing housing enclosing a free volume for receiving lubricant, providing a quantity of the lubricant in the free volume, and providing a sensor configured to measure at least one parameter affecting a degradation rate at which the lubricant will degrade and to produce at least one output signal indicative of the measured at least one parameter. The method also includes providing a pump for pumping lubricant into the bearing housing, providing a controller configured to receive the at least one output signal from the sensor and configured to control the pump based the received at least one output signal, and controlling the pump based on a function of the received at least one output signal. 1. A method comprising:providing a bearing housing configured to house a bearing, the bearing housing enclosing a free volume for receiving lubricant;providing a quantity of the lubricant in the free volume;providing a sensor configured to measure at least one parameter affecting a degradation rate at which the lubricant will degrade and to produce at least one output signal indicative of the measured at least one parameter;providing a pump for pumping lubricant into the bearing housing;providing a controller configured to receive the at least one output signal from the sensor and configured to control the pump based the received at least one output signal; andcontrolling the pump based on a function of the received at least one output signal.2. The method of claim al , including determining , based on the at least one measured parameter the degradation rate of the lubricant , wherein controlling the pump comprises causing the pump to pump lubricant into the bearing housing based on the determined degradation rate.3. The method of claim 2 , wherein the at least one parameter affecting a rate at which the lubricant will degrade comprises a property of the lubricant.4. The method of claim 3 , wherein ...

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02-07-2015 дата публикации

DEFLECTING DEVICE FOR BALL SPLINE DEVICE

Номер: US20150184696A1
Принадлежит: HIWIN TECHNOLOGIES CORP.

A ball spline device includes a guide rail engaged into a sliding member and having a number of longitudinal channels and recesses aligned with each other for engaging with ball bearing members, a cylindrical member and a deflecting device are engaged between the sliding member and the guide rail, and the cylindrical member and the deflecting device each include a number of curved guiding pathway communicating with each other for forming a number of endless ball guiding passages in the ball spline device and for engaging with ball bearing members, and the cylindrical member includes a number of protrusions each having a slot for receiving a lubricating fluid to lubricate the ball bearing members. 1. A ball spline device comprising:an elongated guide rail including a plurality of longitudinal channels formed therein,a sliding member including a bore formed therein for receiving and engaging with said guide rail, and including a plurality of swellings extended radially and inwardly into said bore of said sliding member and equally spaced from each other, and including a plurality of longitudinal recesses formed in said swellings and communicating with said bore of said sliding member and aligned with said longitudinal channels of said guide rail,a cylindrical member and a deflecting device engaged between said sliding member and said guide rail, and said cylindrical member and said deflecting device each including a compartment formed therein for slidably receiving said guide rail and for allowing said cylindrical member and said deflecting device to be moved along said guide rail, said cylindrical member and said deflecting device each including a plurality of protrusions extended radially and outwardly therefrom and equally spaced from each other and engaged between said swellings of said sliding member, said cylindrical member and said deflecting device each including a plurality of curved guiding pathway formed therein, and said curved guiding pathways of said ...

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18-09-2014 дата публикации

BEARING SYSTEM

Номер: US20140270614A1
Автор: JR. Robert D., McKeirnan
Принадлежит: Alpha Turbo Technologies, LLC

The improved bearing system includes an inner cartridge and an outer cartridge having respective bearing units configured to be mountable to a common axial shaft. A drain port is formed in the outer cartridge for discharging excess oil from the bearing system. An annular channel is generally formed from one of the cartridges for selectively receiving a preload ring. An annular groove is formed from a portion of the other cartridge and sized to slidably receive the preload ring. A preload element is disposed within the annular groove and axially compressed between a preload surface of the annular groove and the preload ring. The preload element maintains a simultaneous axial preload thrust on the bearing cartridges and respective bearing units in inwardly opposite axial directions. 1. An improved bearing system , comprising:an inner cartridge and an outer cartridge, each of said cartridges having respective bearing units configured to be mountable to a common axial shaft;a drain port formed in the outer cartridge for discharging excess oil from the bearing system;an annular channel generally formed from one of the inner cartridge or the outer cartridge for selectively receiving a preload ring;an annular groove coupled to the other of the inner cartridge or the outer cartridge and sized to receive the preload ring; anda preload element disposed within the annular groove and axially compressed between the preload ring and a preload surface of the annular groove such that said preload element maintains a simultaneous axial preload thrust on the inner cartridge and the outer cartridge in inwardly opposite axial directions.2. The bearing system of claim 1 , including an oil discharge port in fluid communication with the drain port.3. The bearing system of claim 2 , wherein the oil discharge port comprises a bore in a center housing of the bearing system.4. The bearing system of claim 2 , including a reservoir drain coupled to the oil discharge port for channeling excess ...

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09-07-2015 дата публикации

ROLLING BEARING FOR A TURBOCHARGER

Номер: US20150192176A1
Автор: Schmidt Heiko
Принадлежит: Schaeffler Technoloiges GmbH & Co. KG

A rolling bearing (), in particular for a turbocharger, having an outer ring (), an inner ring () which is rotatable relative to the outer ring () about an axis of rotation (), and having a number of rolling bodies () which are guided in a cage () between the outer ring () and the inner ring (). Here, the cage () has, on its inner circumference, a guide surface () which is guided on a guide track () on the outer circumference of the inner ring (). A groove () with a free region () extends on the outer circumference of the inner ring (). The groove () includes a groove base () which rises in a radial direction toward the guide surface (). Oil is applied to the free region () of the groove () via a spray oil hole () in the outer ring (). 1. A roller bearing , comprising an outer ring , an inner ring rotatable relative to the outer ring about an axis of rotation , and a number of rolling bodies that are guided in a cage between the outer ring and the inner ring , the cage comprises , on an inner circumference thereof , a guide surface that is guided on a guide track on an outer circumference of the inner ring , a groove with a free region extends on the outer circumference of the inner ring and comprises a groove base that rises in a radial direction toward the guide surface , and a spray oil hole that is directed toward the free region of the groove is formed in the outer ring.2. The rolling bearing according to claim 1 , wherein the cage has a tab that is at a distance in an axial direction from the guide surface and extends in a radial direction opposite the outer circumference of the inner ring.3. The rolling bearing according to claim 2 , wherein the tab extends inward in the radial direction into the groove on the outer circumference of the inner ring.4. The rolling bearing according to claim 1 , wherein a radial lubrication gap is formed between the guide surface of the cage and the guide track of the inner ring.5. The rolling bearing according to claim 1 , ...

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20-06-2019 дата публикации

BALL BEARING AND MAIN SHAFT DEVICE FOR MACHINE TOOL

Номер: US20190186546A1
Принадлежит: NSK LTD.

When inner diameter side opening portions are projected on an outer circumferential surface of a retainer along extension lines of central lines of radial holes, at least parts of the inner diameter side opening portions of a plurality of radial holes of an outer ring are positioned within an area of two circles formed by connecting each of axial end portions of adjacent pockets of the retainer in an axial direction. When a central line of any one radial hole coincides with a circumferential phase of a center of a ball, any other radial hole is formed such that the projected inner diameter side opening portion is separated from the ball and an inner circumferential surface of the pocket when viewed from the radial direction of the ball bearing, and a central line of the other radial hole overlaps with the pocket when viewed from the axial direction. 1. A ball bearing comprising:an inner ring with an inner ring raceway groove on an outer circumferential surface;an outer ring with an outer ring raceway groove on an inner circumferential surface;a plurality of balls which are arranged in a rollable manner between the inner ring raceway groove and the outer ring raceway groove; anda retainer with a plurality of pockets for retaining the plurality of respective balls, wherein:the outer ring includes a plurality of radial holes which penetrate from the outer circumferential surface to the inner circumferential surface in the radial direction to supply lubricating oil, such that the ball bearing is lubricated by the lubricating oil;when inner diameter side opening portions of the plurality of radial holes are projected on an outer circumferential surface of the retainer along extension lines of central lines of the radial holes, at least parts of the projected inner diameter side opening portions are positioned within an area of two circles formed by connecting each of axial end portions of respective pockets of the retainer in a rotational axial direction of the ball ...

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13-07-2017 дата публикации

Rolling Bearing Device

Номер: US20170198753A1
Автор: TANIMOTO Kiyoshi
Принадлежит: JTEKT CORPORATION

A rolling bearing device includes: a bearing part having an inner ring, an outer ring, and balls; and an oil supply unit provided adjacent to an annular space between the inner ring and the outer ring and capable of supplying lubricating oil to the annular space. The bearing part has an annular cage provided in the annular space. The cage has a pair of annular parts and a plurality of bars. An outer circumferential surface of the annular part located on a first axial side has a contact portion capable of coming in contact with a part of an inner circumferential surface of the outer ring. A radially outer surface of the cage has, with the contact portion being a top, a first inclined surface provided from the top toward the first axial side and a second inclined surface provided from the top toward a second axial side. 1. A rolling bearing device comprising:a bearing part having an inner ring, an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and an annular cage provided in an annular space between the inner ring and the outer ring to retain the plurality of rolling elements; andan oil supply unit provided axially adjacent to the annular space and capable of supplying lubricating oil to the annular space, whereinthe cage has a pair of annular parts, one of the annular parts being provided on a first axial side of the rolling elements and the other one of the annular parts being provided on a second axial side of the rolling elements, and a plurality of bars that are provided at intervals in a circumferential direction and connect the pair of annular parts to each other, clearances between the bars adjacent to one another in the circumferential direction constituting pockets in which the rolling elements are retained,an outer circumferential surface of the annular part located on the first axial side has a contact portion capable of coming in contact with a part of an inner circumferential surface of the outer ring, ...

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27-06-2019 дата публикации

BALL BEARING AND MAIN SHAFT DEVICE FOR MACHINE TOOL

Номер: US20190195276A1
Принадлежит: NSK LTD.

When inner diameter side opening portions are projected on an outer circumferential surface of a retainer along extension lines of central lines of radial holes, at least parts of the inner diameter side opening portions of a plurality of radial holes of an outer ring are positioned within an area of two circles formed by connecting each of axial end portions of adjacent pockets of the retainer in an axial direction. When a central line of any one radial hole coincides with a circumferential phase of a center of a ball, any other radial hole is formed such that at least parts of the projected inner diameter side opening portion overlap with an inner circumferential surface of the pocket when viewed from a radial direction of a ball bearing, and a central line of the other radial hole is separated from a circumferential phase of the center. 1. A ball bearing comprising:an inner ring with an inner ring raceway groove on an outer circumferential surface;an outer ring with an outer ring raceway groove on an inner circumferential surface;a plurality of balls which are arranged in a rollable manner between the inner ring raceway groove and the outer ring raceway groove; anda retainer with a plurality of pockets for retaining the plurality of respective balls, wherein:the outer ring includes a plurality of radial holes which penetrate from the outer circumferential surface to the inner circumferential surface in the radial direction to supply lubricating oil, such that the ball bearing is lubricated by the lubricating oil;when inner diameter side opening portions of the plurality of radial holes are projected on an outer circumferential surface of the retainer along extension lines of central lines of the radial holes, at least parts of the projected inner diameter side opening portions are positioned within an area of two circles formed by connecting each of axial end portions of respective pockets of the retainer in a rotational axial direction of the ball bearing; ...

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29-07-2021 дата публикации

BEARING ASSEMBLY AND COMPRESSOR COMPRISING SAME

Номер: US20210231175A1
Принадлежит:

Some embodiments of the disclosure disclose a bearing assembly and a compressor with the bearing assembly. The bearing assembly includes: a retainer assembly (), a bearing stationary ring (), and a bearing rotary ring (). The retainer assembly () is disposed between the bearing stationary ring () and the bearing rotary ring (). A lubrication passage is provided in an end face of the bearing rotary ring (). 1. A bearing assembly , comprising:a retainer assembly;a bearing stationary ring; anda bearing rotary ring, the retainer assembly being disposed between the bearing stationary ring and the bearing rotary ring, a lubrication passage being provided in an end face of the bearing rotary ring.2. The bearing assembly as claimed in claim 1 , wherein the lubrication passage comprises:a first lubrication passage provided in the end face of the bearing rotary ring;wherein, the first lubrication passage extends along a circumferential direction of the bearing rotary ring.3. The bearing assembly as claimed in claim 2 , wherein the first lubrication passage is an annular oil channel claim 2 , and the first lubrication passage comprises a first side wall and a second side wall arranged opposite to the first side wall; wherein both projections of the first side wall and the second side wall on the end face of the bearing rotary ring are circular.4. The bearing assembly as claimed in claim 3 , wherein there are at least two first lubrication passages claim 3 , and the at least two first lubrication passages are disposed at intervals in a direction from a circumferential outer surface of the bearing rotary ring to a circumferential inner surface of the bearing rotary ring.5. The bearing assembly as claimed in claim 4 , wherein the at least two first lubrication passages are communicated.62552. The bearing assembly as claimed in claim 4 , wherein there are two first lubrication passages; the first of the two first lubrication passages and the second of the two first lubrication ...

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06-08-2015 дата публикации

NON-CONTACT SEALING SYSTEM FOR BEARINGS

Номер: US20150219161A1
Автор: Gamache Michael
Принадлежит: THE CARLYLE JOHNSON MACHINE COMPANY

A non-contact sealing system for shaft bearings lubricated with lubricating fluid employs a centrifugal pressurizing seal having a stator ring and a rotor ring with a centrifugal pressure chamber to pressurize the fluid and deliver the fluid to remote portions of a bearing through channels in the bearing housing. The system enables bearings to be lubricated at stations remote from the system as well as bearings supporting shafts oriented in the vertical direction. 1. A non-contact sealing system for shaft bearings lubricated with a lubricating fluid comprising:a bearing housing for supporting a shaft for rotation about an axis;a stator ring for mounting in the bearing housing, the stator ring having an annular channel circumscribing the stator ring;a rotor ring for mounting on the shaft supported by the bearing in the bearing housing, the rotor ring being rotatable with the shaft and having an annular centrifugal pressurizing chamber circumscribing the rotor ring for pressurizing lubricating fluid in the chamber when the rotor ring is rotated with the shaft, the annular centrifugal pressurizing chamber being positioned in the annular channel of the stator ring and having a discharge port at the outer periphery of the chamber for discharging pressurized lubricating fluid into the annular channel of the stator ring; andthe bearing housing having fluid conduits communicating with the annular channel of the stator ring for carrying lubricating fluid pressurized in the centrifugal pressurizing chamber of the rotor ring to a bearing supported in the bearing housing.2. A non-contact sealing system for shaft bearings as defined in wherein a plurality of pumping rings are positioned in the centrifugal pressurizing chamber of the rotor ring to aid the pressurization of the lubricating fluid in the chamber.3. A non-contact sealing system for shaft bearings as defined in wherein the fluid conduits in the bearing housing communicate with a supported bearing at the axial side of ...

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27-07-2017 дата публикации

SEGMENTED CAGE AND USE THEREOF

Номер: US20170211629A1
Автор: An Hongyuan, Wadhwa Ajay S
Принадлежит:

A segmented cage for a ball bearing is provided, having multiple independent spacers, distributed at intervals between rolling elements of equal number to the spacers. A pocket slot is formed on each of two sides of each spacer in a position of contact with the rolling element, a concave curved surface adapted to hold the rolling element is formed in the pocket slot, and opposing pocket slots of adjacent spacers are matched to form a cage pocket for enveloping the rolling element. At least one main oil hole is formed in each spacer, running through the interior of the spacer and opening at the pocket slots on the two sides. The rolling element is held by the concave curved surface such that the rolling element is unable to contact with an opening edge, in the pocket slot, of the at least one pair of main oil holes. 1. A segmented cage for a ball bearing , comprising: multiple independent spacers , distributed at intervals between rolling elements of equal number to the spacers , whereina pocket slot is formed on each of two sides of each spacer in a position of contact with the rolling element, a concave curved surface adapted to hold the rolling element is formed in the pocket slot, and opposing pocket slots of adjacent spacers are matched to form a cage pocket for enveloping the rolling element; andat least one main oil hole is formed in each spacer, running through the interior of the spacer and opening at the pocket slots on the two sides; whereinthe rolling element is held by the concave curved surface in such a way that the rolling element is unable to come into contact with an opening edge, in the pocket slot, of the at least one main oil hole.2. The segmented cage according to claim 1 , wherein the at least one main oil hole opens at the deepest part of the concave shape of the pocket slot claim 1 , and the rolling element abuts an interior region of the concave curved surface other than the deepest part of the concave shape of the pocket slot.3. The ...

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13-08-2015 дата публикации

COOLING STRUCTURE FOR BEARING DEVICE

Номер: US20150226266A1
Принадлежит: NTN CORPORATION

A bearing device includes an outer ring spacer () and an inner ring spacer (), which are interposed between outer rings of a plurality of axially juxtaposed rolling bearings and inner rings () of such rolling bearings, respectively. The outer ring and the outer ring spacer () are disposed within a housing () while the inner ring () and the inner ring spacer () are mounted on a main shaft (). A nozzle () is provided in the outer ring spacer () for blowing a cooling fluid to an outer peripheral surface of an inner ring () or the inner ring spacer () to thereby supply the cooling fluid to the rolling bearing. The nozzle () is provided with its discharge port side inclined forwardly with respect to the direction of rotation of the main shaft (). 1. A cooling structure for a bearing device , the bearing device comprising: a plurality of axially juxtaposed rolling bearings , each of the rolling bearings having an inner ring mounted on a main shaft and an outer ring accommodated in a housing; an inner ring spacer interposed between the inner rings of the neighboring rolling bearings and mounted on the main shaft; and an outer ring spacer interposed between the outer rings of the neighboring rolling bearings and accommodated in the housing , which cooling structure comprises:a nozzle provided in the outer ring spacer and configured to for supply a cooling fluid to the rolling bearings by blowing the cooling fluid to an outer peripheral surface of the inner ring or the inner ring spacer, the cooling fluid including a mixture of air and oil or only oil, the nozzle having a discharge port side that is inclined forwardly with respect to a direction of rotation of the main shaft, in which the nozzle is configured to discharge the cooling fluid towards the outer peripheral surface of the inner ring spacer, andthe outer peripheral surface of the inner ring spacer is so shaped as to guide the cooling fluid, discharged from the nozzle, towards the neighboring rolling bearings on ...

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11-07-2019 дата публикации

ADJUSTABLE LUBRICATION MODULE OF LINEAR GUIDEWAY

Номер: US20190211872A1
Принадлежит:

An adjustable lubrication module of a linear guideway includes an end lid disposed at a slider and an oil scraper disposed at the end lid. The end lid has therein two opposing backflow-chambers. A feed-hole disposed between the backflow-chambers and an oil-guiding conduit disposed below the feed-hole are disposed on the end lid. Communication between the feed-hole and the oil-guiding conduit is achieved by a primary oiling-channel. Communications between the oil-guiding conduit and the backflow-chambers are achieved by a secondary oiling-channel. Therefore, oiling-channel adjustment performed on the adjustable lubrication module operating in conjunction with the linear guideway does not entail demounting the end lid from the slider, thereby preventing ball missing. The feed-hole and the oil-guiding conduit are not disposed at the junction of the end lid and the slider; hence, lubrication oil is prevented from flowing over the gap between the end lid and the slider. 1. An adjustable lubrication module of a linear guideway , the linear guideway comprising a rail and a slider slidably disposed at the rail , the adjustable lubrication module comprising:an end lid disposed on an end surface of the slider, the end lid having therein two opposing backflow chambers, the two backflow chambers being disposed at two sides of the rail, allowing a feed hole and an oil-guiding conduit to be disposed on an end surface of the end lid, with the end surface facing away from the slider, the oil-guiding conduit being closer to the rail than the feed hole, the end lid having therein a primary oiling channel and two opposing secondary oiling channels, allowing two ends of the primary oiling channel to be in communication with the feed hole and the oil-guiding conduit, respectively, and two ends of each said secondary oiling channel to be in communication with the oil-guiding conduit and one of the backflow chambers, respectively; andan oil scraper disposed on an end surface of the end ...

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27-08-2015 дата публикации

ROLLING BEARING DEVICE

Номер: US20150240872A1
Принадлежит:

A rolling bearing device has an oil supply unit which includes: a lubrication oil tank with a discharge port of a lubrication oil; a pump which sucks the lubrication oil from the lubrication oil tank and discharges the lubrication oil; and an electric power source section for driving the pump. The oil supply unit is disposed inside the rolling bearing or inside a spacer which is placed adjacent to the rolling bearing, and the pump is operated intermittently. The electric power source section for driving the pump includes: a power generator section which generates power by temperature difference between inner and outer rings in the rolling bearing; and a charging section which stores the electric power from the power generator section. The pump is driven when a voltage in the charging section attains a driving voltage for the pump. 1. A rolling bearing device comprising an oil supply unit which includes: a lubrication oil tank having a discharge port of a lubrication oil; a pump which sucks the lubrication oil from the lubrication oil tank and discharge the lubrication oil; and an electric power source section for driving the pump; the oil supply unit being disposed inside a rolling bearing or inside a spacer which is placed adjacent to the rolling bearing , wherein the pump is operated intermittently.2. The rolling bearing device according to claim 1 , wherein the electric power source section for driving the pump includes: a power generator section which generates power by way of temperature difference between an inner and an outer rings in the rolling bearing; and a charging section which stores the electric power from the power generator section; and wherein the pump is driven to supply the lubrication oil when a voltage in the charging section attains a pump driving voltage.3. The rolling bearing device according to claim 2 , wherein the pump is driven to perform a first supply of the lubrication oil after the voltage in the charging section is held for a ...

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27-08-2015 дата публикации

BEARING CAGE & ROLLING ELEMENT BEARING

Номер: US20150240873A1
Принадлежит:

A bearing cage for retaining rolling elements of a rolling element bearing, the bearing cage having at least one first ring structure to which at least one first cage bar is connected. The at least one first cage bar comprises a side surface that is arranged to extend along an outer surface of a rolling element when the bearing cage is in use, whereby the side surface comprises a radially outer edge and a radially inner edge. The distance between the radially outer edges of two adjacent cage bars between which a rolling element is located when the bearing cage is in use is greater than the distance between two adjacent radially inner edges of the two adjacent cage bars. 1. A bearing cage for retaining rolling elements of a rolling element bearing , the bearing cage having:at least one first cage bar comprising a side surface that is arranged to extend along an outer surface of a rolling element when the bearing cage is in use;at least one first ring structure connected to the at least one first cage bar,whereby the side surface comprises a radially outer edge and a radially inner edge, andwhereby a distance between the radially outer edges of two adjacent cage bars between which a rolling element is located when the bearing cage is in use is greater than a distance between two adjacent radially inner edges of the two adjacent cage bars.2. The bearing cage according to claim 1 , the side surface of the at least one first cage bar further comprising at least one chamfered edge.3. The bearing cage according to claim 2 , wherein the at least one chamfered edge is provided at the radially inner edge of the first cage bar.4. The bearing cage according to claim 1 , the bearing cage further comprising a second ring structure to which at least one second cage bar is connected claim 1 , whereby the at least one second ring structure is arranged to be located radially inwards of the at least one first ring structure.5. The bearing cage according to claim 4 , wherein the at ...

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18-08-2016 дата публикации

ROLLING BEARING APPARATUS

Номер: US20160238078A1
Автор: TANIMOTO Kiyoshi
Принадлежит: JTEKT CORPORATION

A rolling bearing apparatus includes a bearing portion having an outer ring, an inner ring, a plurality of balls, and a cage that holds the balls, and an auxiliary portion provided adjacently to the bearing portion in an axial direction. The auxiliary portion has an auxiliary body portion provided adjacently to the outer ring in the axial direction and an extension portion extending in the axial direction from the auxiliary body portion and interposed between the cage and the inner ring. In the extension portion, a channel is formed that penetrates the extension portion in a direction inclined with respect to a radial direction. The channel is open in an outer peripheral surface of the extension portion, which faces the cage, and in an inner peripheral surface of the extension portion, which faces the inner ring. 1. A rolling bearing apparatus comprising:a bearing portion having a fixed ring, a rotating ring arranged concentrically with the fixed ring, a plurality of rolling elements interposed between the fixed ring and the rotating ring, and a cage that holds the rolling elements; andan auxiliary portion provided adjacently to the bearing portion in an axial direction, whereinthe auxiliary portion has an auxiliary body portion provided adjacently to the fixed ring in the axial direction and an extension portion extending in the axial direction from the auxiliary body portion and interposed between the cage and the rotating ring, andin the extension portion, a channel is formed that penetrates the extension portion in a direction inclined with respect to a radial direction and that is open in a surface of the extension portion, which faces the cage, and in a surface of the extension portion, which faces the rotating ring.2. The rolling bearing apparatus according to claim 1 , wherein the channel has an inclined surface inclined in a rotating direction of the rotating ring with respect to the radial direction claim 1 , from the cage side toward the rotating ring ...

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17-08-2017 дата публикации

ROLLING BEARING

Номер: US20170234367A1
Принадлежит: NTN CORPORATION

A rolling bearing () including: an inner ring () and an outer ring () which are bearing rings; a plurality of rolling elements () interposed in a rollable manner between raceway surfaces () of the bearing rings; and a retainer configured to retain the plurality of rolling elements (), wherein a nozzle () configured to inject a cooling fluid (R) toward the rolling elements () is provided to a fixed-side bearing ring which is one of the inner ring () and the outer ring (), with an outlet () side of the nozzle () oriented forward in a revolution direction of the rolling elements (). 1. A rolling bearing comprising:an inner ring rand an outer ring which are bearing rings;a plurality of rolling elements interposed in a rollable manner between raceway surfaces of the bearing rings; anda retainer configured to retain the plurality of rolling elements, whereina nozzle configured to inject a cooling fluid toward the rolling elements is provided to a fixed-side bearing ring which is one of the inner ring and the outer ring with an outlet side of the nozzle oriented forward in a revolution direction of the rolling elements.2. The rolling bearing according to claim 1 , wherein the cooling fluid is a mixture of compressed air and oil.3. The rolling bearing according to claim 1 , whereinthe rolling bearing is configured to be used for supporting a main shaft of a machine tool,the inner ring is fitted to the main shaft, andthe outer ring is set in a housing. This application is a continuation application, under 35 U.S.C. §111(a), of international application No PCT/JP2015/080707, filed Oct. 30, 2015, which claims priority to Japanese patent application No. 2014-230395, filed Nov. 13 2014, the entire disclosure of which is herein incorporated by reference as a part of this application.Field of the InventionThe present invention relates to rolling bearings to be used for supporting a main shaft of a machine tool, for example.Description of Related ArtIn main shaft devices of machine ...

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13-11-2014 дата публикации

ROLLING BEARING DEVICE

Номер: US20140334757A1
Принадлежит: NTN CORPORATION

A rolling bearing device which may include: a pair of raceway rings including an inner ring and an outer ring, a plurality of rolling elements interposed between respective raceway surfaces of the inner and outer rings, a retainer to retain the rolling elements; an oil supply and discharge mechanism to supply a lubricant oil, which concurrently serves as a bearing cooling medium, into the inside of the bearing device and to discharge the lubricant oil to the outside of the bearing device; and a ring shaped shake-off collar portion disposed in the vicinity of an end portion of an outer diametric surface of the inner ring so as to protrude radially outwardly, wherein the lubricant oil supplied from the oil supply and discharge mechanism and provided for lubrication within the bearing device is, after being received by the shake-off collar portion, shaken-off in a direction radially outwardly by the effect of a centrifugal force developed as a result of an inner ring rotation. 1. A rolling bearing device which comprises:a pair of raceway rings including an inner ring and an outer ring,a plurality of rolling elements interposed between respective raceway surfaces of the inner and outer rings,a retainer to retain the rolling elements;an oil supply and discharge mechanism to supply a lubricant oil, which concurrently serves as a bearing cooling medium, into the inside of the bearing device and to discharge the lubricant oil to the outside of the bearing device; anda ring shaped shake-off collar portion disposed in the vicinity of an end portion of an outer diametric surface of the inner ring so as to protrude radially outwardly,wherein the lubricant oil supplied from the oil supply and discharge mechanism and provided for lubrication within the bearing device is, after being received by the shake-off collar portion, shaken-off in a direction radially outwardly by the effect of a centrifugal force developed as a result of an inner ring rotation.2. The rolling bearing ...

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20-11-2014 дата публикации

BEARING DEVICE

Номер: US20140341490A1
Автор: Ito Hiroyoshi, Oomot Kaoru
Принадлежит:

An object of the present invention is to provide a bearing device which includes a lubricant supply device that is capable of supplying lubrication oil from a lubrication oil tank to a rolling bearing without time lag and without using a pump, and at a high level of energy efficiency. A bearing device is constituted by a rolling bearing and a lubricant supply device combined with each other. The lubricant supply device includes a lubrication oil tank which stores pressurized lubrication oil and has a lubrication oil discharge spout; an open/close valve which opens/closes the discharge spout of the lubrication oil tank; a driving section which operates the open/close valve; and an electric power source section which generates electric energy for operation of the driving section. The lubricant supply device is attached to the rolling bearing or to a spacer adjacent thereto. 1. A bearing device comprising a rolling bearing and a lubricant supply device combined with each other , wherein the lubricant supply device includes: a lubrication oil tank which stores pressurized lubrication oil and has a lubrication oil discharge spout; an open/close valve which opens/closes the discharge spout of the lubrication oil tank; a driving section which operates the open/close valve; and an electric power source section which generates electric energy for operation of the driving section; the lubricant supply device being attached to the rolling bearing or to a spacer adjacent thereto.2. The bearing device according to claim 1 , wherein the lubrication oil tank has a pressurizer which presses loaded lubrication oil with a pressurizing spring.3. A bearing device comprising a rolling bearing and a lubricant supply device combined with each other claim 1 , wherein the lubricant supply device includes: a lubrication oil tank which is attached to the rolling bearing or to a spacer adjacent thereto; an open/close valve; and a discharge amount adjuster; lubrication oil being discharged from ...

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30-09-2021 дата публикации

BEARING HOUSING OIL INTAKE TO SUPPLY DUAL BEARING STRUCTURE

Номер: US20210301875A1
Принадлежит:

A bearing assembly comprises a first bearing axially spaced from a second bearing, each bearing having an inner race disposed on a shaft and having an outer race. The bearings are mounted to a mounting sleeve having an outer sleeve surface and an inner sleeve surface engaging the outer race of each bearing. The mounting sleeve has an outer surface engaged with an inner bearing support of a bearing housing having an enclosed chamber. A housing oil inlet is in fluid communication with the enclosed chamber. The mounting sleeve includes an axially extending sleeve oil passage in fluid communication with the housing oil inlet. The mounting sleeve has a first outlet in the vicinity of the first bearing and the sleeve oil passage has a second outlet in the vicinity of the second bearing. 1. A bearing assembly for supporting a shaft rotating on an axis , the bearing assembly comprising:a first bearing axially spaced from a second bearing, each bearing having an inner race and an outer race;a bearing mounting sleeve having an outer sleeve surface and having inner sleeve surface, the inner sleeve surface engaging the outer race of the first bearing and the second bearing; anda bearing housing having an enclosed chamber with an inner bearing support engaging the outer sleeve surface of the bearing mounting sleeve, and a housing oil inlet in fluid communication with the enclosed chamber;wherein the bearing mounting sleeve includes an axially extending sleeve oil passage in fluid communication with the housing oil inlet, the bearing mounting sleeve having a first outlet in the vicinity of the first bearing and the sleeve oil passage having a second outlet in the vicinity of the second bearing.2. The bearing assembly according to wherein the bearing mounting sleeve comprises a first ring and a second ring joined together with a plurality of axial struts claim 1 , and wherein the sleeve oil passage is disposed within at least one of the plurality of axial struts.3. The bearing ...

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21-10-2021 дата публикации

BALL BEARING REAR INNER RING WITH OIL CIRCUMFERENTIAL GROOVE

Номер: US20210324914A1
Автор: POIRIER Cedric
Принадлежит:

An inner ring for a bearing assembly comprises an inner circumferential surface disposed between a first axial end and a second axial end. A circumferential slot is disposed in the inner circumferential surface adjacent the second axial end. At least one radial passage is disposed within the inner ring and is in fluid communication with the circumferential slot. At least one axial slot extends axially along the inner circumferential surface from a respective opening in the first axial end to the circumferential slot. At least one of the radial passage is circumferentially offset from each at least one axial slot. 1. An inner ring for a bearing assembly , comprising:an inner circumferential surface disposed between a first axial end and a second axial end;a circumferential slot disposed in the inner circumferential surface adjacent the second axial end;at least one radial passage disposed within the inner ring and in fluid communication with the circumferential slot, the at least one radial passage having an inlet disposed within the circumferential slot; andat least one axial slot extending axially along the inner circumferential surface from a respective opening in the first axial end to the circumferential slot;wherein each at least one radial passage is circumferentially offset from each at least one axial slot.2. The inner ring as defined in claim 1 , wherein the circumferential slot is continuous over 360 degrees.3. The inner ring as defined in claim 1 , wherein a plurality of the at least one axial slot are evenly spaced about the entire inner circumferential surface.4. The inner ring as defined in claim 1 , wherein a plurality of the at least one axial slot are equidistantly spaced apart.5. The inner ring as defined in claim 1 , wherein a depth of the at least one axial slot increases towards the circumferential slot.6. The inner ring as defined in claim 1 , wherein the circumferential slot includes a sidewall extending upward towards the inner ...

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01-10-2015 дата публикации

BEARING CAGE & ROLLING ELEMENT BEARING

Номер: US20150275973A1
Принадлежит:

A bearing cage for retaining rolling elements of a rolling element bearing, the bearing cage having at least one first ring structure to which at least one first cage bar is connected. The bearing cage also comprises a second ring structure to which at least one second cage bar is connected, whereby the at least one second ring structure is arranged to be located radially inwards of the at least one first ring structure. 1. A bearing cage for retaining rolling elements of a rolling element bearing , the bearing cage having:at least one first ring structure to which at least one first cage bar is connected;a second ring structure to which at least one second cage bar is connected;whereby the at least one second ring structure is arranged to be located radially inwards of the at least one first ring structure.2. The bearing cage according to claim 1 , wherein the at least one second cage bar is constructed so that a diameter of the second ring structure is largest at one of a point and a region along a length of the at least one second cage bar so as to improve lubricant flow towards the rotational center of rolling elements when the bearing cage is in use.3. The bearing cage according to claim 1 , wherein the at least one second ring structure is provided with at least one reservoir for the accommodation of lubricant when the bearing cage is in use.4. The bearing cage according to claim 1 , wherein the at least one first ring structure is integrally formed with the at least one second ring structure.5. The bearing cage according to claim 1 , wherein the at least one first ring structure is arranged to be connected to the at least one second ring structure.6. The bearing cage according to claim 1 , wherein the at least one first cage bar is constructed so that a diameter of the bearing cage is largest at one of a point and a region along the length of the at least one first cage bar so as to improve lubricant flow towards the rotational center of rolling elements when ...

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20-09-2018 дата публикации

SELF-CONTAINED OIL-LUBRICATED BEARING BRACKET SYSTEM

Номер: US20180266489A1
Принадлежит:

A self-contained oil lubricated bearing bracket system for a vehicle includes a bracket component having a body including an inner surface defining, at least in part, a first opening, a second opening, and an interior portion defining, at least in part, a lubricant reservoir. A bearing is mounted to the bracket component. The bearing includes a plurality of bearing elements, at least one of the plurality of bearing elements is arranged in the lubricant reservoir. 1. A self-contained oil lubricated bearing bracket system for a vehicle comprising:a bracket component including a body having an inner surface defining, at least in part, a first opening, a second opening, and an interior portion defining, at least in part, a lubricant reservoir; anda bearing mounted to the bracket component, the bearing including a plurality of bearing elements, at least one of the plurality of bearing elements being arranged in the lubricant reservoir.2. The self-contained oil lubricated bearing bracket system according to claim 1 , wherein the bearing includes an outer race fixedly mounted to the inner surface claim 1 , and an inner race claim 1 , the plurality of bearing elements being arranged between the outer race and the inner race.3. The self-contained oil lubricated bearing bracket system according to claim 2 , further comprising: a first snap ring extending annularly about a first side of the bearing and a second snap ring extending about a second claim 2 , opposing side of the bearing claim 2 , the first snap ring and the second snap ring retaining the bearing in the bracket component.4. The self-contained oil lubricated bearing bracket system according to claim 1 , further comprising: a first seal extending about the first opening and a second seal extending about the second opening.5. The self-contained oil lubricated bearing bracket system according to claim 4 , wherein at least one of the first seal and the second seal comprises one of a lip seal and a cartridge seal.6. The ...

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18-11-2021 дата публикации

WORK EQUIPMENT FOR MOTOR GRADER

Номер: US20210355652A1
Принадлежит: KOMATSU LTD.

The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate. 1. A work equipment for a motor grader comprising:a drawbar having a drawbar plate extending along a horizontal surface;a bearing having an outer ring that has an annular shape when seen from a plan view and is fixed to a lower surface of the drawbar plate, and an inner ring that has an annular shape when seen from a plan view, is disposed inside the outer ring, is connected to the outer ring so as to be rotatable in a peripheral direction with respect to the outer ring, and is provided with an inner gear in an inner peripheral surface of the inner ring;a circle rotary machine having a rotary machine main body that is provided with an outer gear engaging with the inner gear and that is configured to rotate the outer gear, and a gear cover that is provided on the rotary machine main body and covers the outer gear from the outer peripheral side of the outer gear, forms a space between the outer gear and the gear cover, and is fixed to the drawbar plate;a rotary machine lubrication unit provided on the gear cover and configured to supply a lubricant to the space; anda circle fixed to a lower end of the inner ring over the peripheral direction and communicating with the space to form an opening portion below the space.2. The work equipment for the motor grader according to claim 1 ,wherein the gear cover comprises:a lateral surface portion covering a part of the outer gear from the outer peripheral side of the outer gear ...

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05-10-2017 дата публикации

BEARING ARRANGEMENT FOR A DEEP DRILLING DEVICE

Номер: US20170284469A1
Автор: Scharting Stefan
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

The invention relates to a bearing arrangement for a drilling head, through which flushing liquid flows, of a deep drilling device, having multiple radially outer and radially inner bearing rings, wherein the radially outer bearing rings are arranged coaxially over the radially inner bearing rings, wherein, radially between the bearing rings, there are arranged balls which roll in raceways of the bearing rings, and wherein the raceways are delimited axially on both sides by shoulders with mutually opposite shoulder surfaces which run parallel to a bearing longitudinal axis. In order for a bearing arrangement of this type, which, as per the prior art, is adjoined in an axial direction by at least one plain bearing, to be designed to be of short axial extent and in order to simplify the construction, the internal diameter (Di) of the shoulder surfaces of the radially outer bearing rings and the external diameter (Da) of the shoulder surfaces of the radially inner bearing rings are dimensioned such that said shoulder surfaces perform the function of parallel radial plain bearings with a radial clearance (S). 1. A bearing arrangement for a drill head of a deep drilling device in which a flushing liquid flows through the drill head , the bearing arrangement comprising multiple radially outer and radially inner bearing rings , the radially outer bearing rings are arranged coaxial over the radially inner bearing rings , balls are arranged radially between the radially outer and radially inner bearing rings , said balls roll in raceways of the radially outer and radially inner bearing rings and the raceways are axially bounded on two sides by shoulders with shoulder surfaces that are opposite to each other and run parallel to a bearing longitudinal axis , an inner diameter (Di) of the shoulder surfaces of the radially outer bearing rings and an outer diameter (Da) of the shoulder surfaces of the radially inner bearing rings are dimensioned so that a radial play (S) that ...

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04-10-2018 дата публикации

ROLLING BEARING DEVICE AND OIL SUPPLY UNIT

Номер: US20180283454A1
Принадлежит: JTEKT CORPORATION

A rolling bearing device includes: a bearing portion that has an inner ring, an outer ring, a plurality of balls, and a cage that holds the plurality of balls; and an oil supply unit provided adjacent to the bearing portion in the axial direction and configured to supply lubricating oil to the bearing portion. The oil supply unit has: a pump that suctions lubricating oil into an oil chamber and discharges the lubricating oil by varying a capacity of the oil chamber by periodically driving a piezo element; and a control portion that causes the pump to operate by varying a rising time of a voltage applied to the piezo element in accordance with whether a drive period of the piezo element is long or short. 1. A rolling bearing device comprising:a bearing portion that has an inner ring, an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage that holds the plurality of rolling elements; andan oil supply unit provided adjacent to the bearing portion in an axial direction and configured to supply lubricating oil to the bearing portion, wherein a pump that suctions lubricating oil into an oil chamber and discharges the lubricating oil by varying a capacity of the oil chamber by periodically driving a piezo element; and', 'a control portion that causes the pump to operate by changing a rising time of a voltage applied to the piezo element in accordance with whether a drive period of the piezo element is long or short., 'the oil supply unit has2. The rolling bearing device according to claim 1 , whereinthe control portion causes the pump to operate by making a falling time of the voltage constant irrespective of whether the drive period is long or short.3. The rolling bearing device according to claim 1 , whereinthe control portion causes the pump to operate such that a voltage waveform during the rising time is a waveform corresponding to a function other than a linear function.4. The rolling bearing device according ...

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20-10-2016 дата публикации

ROLLING ELEMENT BEARING

Номер: US20160305480A1
Автор: Wang Jun
Принадлежит: AKTIEBOLAGET SKF

The invention relates to a rolling element bearing having at least one inner bearing inner and at least one outer bearing ring. Rolling elements are arranged between the inner ring and the outer ring, and the rolling elements are guided by a cage. To improve the lubrication of the bearing the invention proposes that the cage includes at least one opening, preferably a bore. The opening penetrates the cage from a radial inner surface to a radial outer surface. 1. A rolling element bearing comprising:at least one inner bearing ring, andat least one outer bearing ring, whereinrolling elements are arranged between the inner bearing ring and the outer bearing ring, the rolling elements guided by a cage, the cage provides at least one opening, the opening penetrates the cage from a radially inner surface to a radially outer surface, and whereinthe radially outer end of the at least one opening terminates in a groove in the radially outer surface of the cage.2. The rolling element bearing according to claim 1 , wherein a plurality of openings are arranged in the cage.3. The rolling element bearing according to claim 2 , wherein the openings are arranged equidistantly along the circumference of the cage.4. The rolling element bearing according to claim 1 , wherein the at least one opening is arranged in at least one axial end region of the cage.5. The rolling element bearing according to claim 1 , wherein the openings are arranged in both axial end regions of the cage.6. The rolling element bearing according to claim 1 , wherein the at least one opening is a bore and has an axis which extends in radial direction (r) through the cage.75. The rolling element bearing according to claim 1 , wherein the at least one opening is a bore and has an axis which extends under an angle (α) to the radial direction (r) through the cage () claim 1 , and wherein the angle (α) is preferably between 5° and 30°.8. The rolling element bearing according to claim 1 , wherein the at least one ...

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03-11-2016 дата публикации

HIGH SPEED BEARING ASSEMBLY

Номер: US20160319872A1
Принадлежит:

According to the present disclosure, a bearing assembly includes an outer race, a cage, a plurality of internal rotating members, and an inner race. Lubricant flows through the bearing assembly to withdraw heat generated during operation of the bearing assembly. 1. A bearing assembly comprisingan inner race that extends around a central axis,an outer race that extends around the central axis radially outward of the inner race,a plurality of internal rotating components arranged radially between the inner race and the outer race to engage the inner race and the outer race, anda cage that extends around the central axis radially between the inner race and the outer race, the cage including a cage rail formed to include a plurality of apertures that receive the plurality of internal rotating components to locate the plurality of internal rotating components relative to one another within the bearing assembly and a plurality of lubricant-ejector fins that extend radially outward from the cage rail that are shaped to push lubricant between the cage rail and the outer race out of the bearing assembly during rotation of the cage relative to the outer race in a direction of rotation so that hot lubricant is removed from the bearing assembly to make room for cooler lubricant introduced into the bearing assembly during rotation of the cage.2. The bearing assembly of claim 1 , wherein the plurality of lubricant-ejector fins include forward-side fins arranged along an axially-forward side of the cage and aft-side fins arranged along an axially-aft side of the cage.3. The bearing assembly of claim 2 , wherein each of the lubricant-ejector fins has a curved shape when viewed inwardly in a radial direction toward the central axis.4. The bearing assembly of claim 2 , wherein the plurality of lubricant-ejector fins are spaced axially apart from the plurality of apertures formed in the cage rail of the cage.5. The bearing assembly of claim 1 , wherein each of the plurality of ...

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12-11-2015 дата публикации

CHAIN GUIDE AND CHAIN TENSIONER DEVICE

Номер: US20150323047A1
Автор: Kato Akio
Принадлежит:

Disclosed is a lightweight and inexpensive chain guide that has little mechanical loss. The chain guide comprises: a plurality of rollers () which make contact with a chain; a chain guide base () which supports the plurality of the rollers () disposed along a direction of travel of the chain, and a plurality of shafts () attached to the chain guide base () at predetermined intervals along the direction of travel of the chain. Each of the rollers () includes a rolling-element bearing portion constituted of a cylindrical outer ring main body () encompassing an outer circumferential face of the shaft (), and a plurality of rolling elements () disposed between the outer circumferential face of the shaft and an inner circumferential face of the outer ring main body (). The outer ring main body () is supported on the chain guide base () via the shaft () so as to be in rolling contact with the chain. 1. A chain guide comprising: a plurality of rollers which make contact with a chain; a chain guide base which supports the plurality of the rollers disposed along a direction of travel of the chain; and a plurality of shafts attached to the chain guide base at predetermined intervals along the direction of travel of the chain ,each of the rollers including a rolling-element bearing portion constituted of a cylindrical outer ring main body encompassing an outer circumferential face of the shaft, and a plurality of rolling elements disposed between the outer circumferential face of the shaft and an inner circumferential face of the outer ring main body, the outer ring main body being supported on the chain guide base via the shaft so as to be in rolling contact with the chain.2. The chain guide according to claim 1 , wherein the chain guide base comprises a pair of side plates formed in a curved shape so as to be along the direction of travel of the chain claim 1 , and the rollers are disposed between members of the side plates.3. The chain guide according to claim 2 , wherein a ...

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19-11-2015 дата публикации

ROTATING ELECTRICAL MACHINE HAVING IMPROVED BEARING LUBRICATION AND ASSOCIATED METHODS

Номер: US20150330452A1
Автор: Mongeau Peter
Принадлежит:

A rotating electrical machine includes an outer housing; a drive shaft rotatably mounted within the outer housing; a bearing supporting the drive shaft relative to the outer housing, wherein the outer housing includes a support surface confronting the bearing and the bearing includes a bearing surface confronting the support surface, and further wherein a region defined between the support surface and the bearing surface has a lubrication layer; and a lubrication flow path configured to direct a lubricant to the bearing, wherein the lubrication flow path is in fluid communication with the region between the support surface and the bearing surface so as to replenish the lubrication layer. A method of lubricating a bearing for a rotating electrical machine is also disclosed. The rotating electrical machine may be a generator for a wind turbine.

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09-11-2017 дата публикации

THRUST ROLLER BEARING CAGE AND METHOD FOR MANUFACTURING THE SAME

Номер: US20170321751A1
Принадлежит:

A thrust roller bearing cage () of the present invention is included in a thrust roller bearing () and includes a plurality of pockets () accommodating rollers (). The thrust roller bearing cage () includes: a first cylindrical portion () extending in a direction of a rotation axis (); a first disc portion () continuous with the first cylindrical portion () and extending in a radially outward direction; and a second cylindrical portion () continuous with the first disc portion () and extending in the direction of the rotation axis (). The first cylindrical portion (), the first disc portion (), and the second cylindrical portion () are formed in an area located radially inside the pockets (). The first disc portion () has a through hole (). 1. A thrust roller bearing cage included in a thrust roller bearing and including a plurality of pockets accommodating rollers , comprising:a first cylindrical portion extending in a direction of a rotation axis;a disc portion continuous with the first cylindrical portion and extending in a radially outward direction; anda second cylindrical portion continuous with the disc portion and extending in the direction of the rotation axis, whereinthe first cylindrical portion, the disc portion, and the second cylindrical portion are formed in an area located radially inside the pockets, andthe disc portion has a through hole.2. The thrust roller bearing cage according to claim 1 , further comprising:a radially outer area bent portion formed by bending an area located radially outside the pockets inward in a radial direction; andprojecting portions that are formed in a tip end of the radially outer area bent portion at positions aligned with the pockets and project inward in the radial direction beyond radially outer edges of the pockets so as to contact end faces of the rollers accommodated in the pockets.3. The thrust roller bearing cage according to claim 2 , wherein areas of the projecting portions which are to contact the end faces ...

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09-11-2017 дата публикации

LINEAR GUIDE WITH LUBRICATION DEVICE

Номер: US20170321752A1
Принадлежит:

A linear guide with lubrication device includes: a elongate rail; a slide module slidably mounted on the elongate rail and including a slide block and two recirculation members, which are respectively mounted to two end faces of the slide block and include a plurality of recirculation passages, in which at least one of the recirculation members includes a lubricant reservoir and a fixing through hole formed therein such that the lubricant reservoir, the recirculation passage, and the fixing through hole are in communication with each other and the lubricant reservoir receives lubricant filled therein; an application member received in the fixing through hole; a transferring member covering the application member and the transferring member absorbing and transferring lubricant to the application member. Rolling bodies, when moving through the recirculation passage, may contact the application member to have lubricant applied thereto. 1. A linear guide with lubrication device , comprising:an elongate rail, which comprises an elongated strip like structure extending in a given direction, the direction being defined as an axial direction, the elongate rail being provided, on two opposite sides of the axial direction, with rolling grooves respectively; a slide module, which is slidably mounted on the elongate rail and comprises a slide block and two recirculation members, the slide block being provided with rolling channels respectively corresponding to the rolling grooves such that each of the rolling grooves and the corresponding one of the rolling channels collectively define a loading path, the slide block being further provided with a plurality of recirculation holes each extending through two end faces thereof in the axial direction, the two recirculation members being respectively mounted to the two end faces of the slide block, the two recirculation members being each provided with a plurality of recirculation passages each having two ends respectively connected ...

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17-11-2016 дата публикации

ROLLER BEARING DEVICE

Номер: US20160333937A1
Автор: Mizutani Mamoru
Принадлежит: N T N Corporation

A rolling bearing device is a combination of a rolling bearing and an oil supply unit which includes at least: a lubrication oil tank having a lubrication oil discharge port. The oil supply unit is in a housing space inside a spacer adjacent to the rolling bearing, and the housing space is between an inner ring and an outer ring. The housing space for the lubrication oil tank has a width approximately equal to an axial width of the spacer and a circumferential length within a range of a center angle θ in an axial view of the spacer; and the lubrication oil tank housed in the housing space is provided by a bag which has a width approximately equal to an axial width of the housing space and a length approximately equal to A×π×(θ/360), where A represents a center diameter of the spacer. 1. A rolling bearing device comprising a combination of a rolling bearing and an oil supply unit which includes at least: a lubrication oil tank having a lubrication oil discharge port , a pump; a driving section; an electric source section; and a controller; the oil supply unit being between an inner ring and an outer ring of a spacer adjacent to the rolling bearing; wherein a space for the lubrication oil tank in the oil supply unit has a width equal to an axial width of the spacer and is within a range of a center angle θ in an axial view of the spacer; and the lubrication oil tank in the oil supply unit is provided by a bag which has a width equal to an axial width of the spacer and a length equal to A×π×(θ/360) , where A represents a center diameter of the spacer.2. The rolling bearing device according to claim 1 , wherein the bag which constitutes the lubrication oil tank is provided by a rectangular claim 1 , elastic bag.3. The rolling bearing device according to claim 2 , wherein the bag which constitutes the lubrication oil tank is made by first laminating two rectangular resin sheets each other claim 2 , and then welding perimeter regions.4. The rolling bearing device ...

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16-11-2017 дата публикации

Rolling Bearing Apparatus

Номер: US20170328409A1
Принадлежит: JTEKT CORPORATION

A rolling bearing apparatus includes: a bearing including an inner ring, an outer ring, a plurality of balls, and a cage; and an oil supply unit provided axially adjacent to the bearing. The oil supply unit includes a tank in which to accumulate lubricant, and a pump that receives the lubricant in the tank and supplies the lubricant to the bearing. The tank is provided with a holding material for the lubricant, the holding material having minute pores. The holding material includes a first holding portion provided in a region on an outlet-side of the tank, and a second holding portion provided in a part other than the region and having a porosity higher than that of the first holding portion. 1. A rolling bearing apparatus comprising:a bearing including an inner ring, an outer ring, a plurality of rolling elements provided between the inner ring and the outer ring, and a cage holding the plurality of rolling elements; andan oil supply unit provided axially adjacent to the bearing and including a tank in which lubricant is to be accumulated, and a pump that receives the lubricant from the tank and supplies the lubricant to the bearing, wherein:the tank is provided with a holding material for holding the lubricant, the holding material having minute pores; andthe holding material includes a first holding portion provided in a region on an outlet side of the tank, and a second holding portion provided in a region other than the region on the outlet side of the tank and having a porosity higher than that of the first holding portion.2. The rolling bearing apparatus according to claim 1 , whereinthe holding material is made of a porous element.3. The rolling bearing apparatus according to claim 1 , whereinthe first holding portion has an average pore diameter smaller than that of the second holding portion.4. The rolling bearing apparatus according to claim 1 , whereina volume occupied by the second holding portion is larger than a volume occupied by the first holding ...

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16-11-2017 дата публикации

Rolling Bearing Apparatus

Номер: US20170328410A1
Автор: Kiyoshi Tanimoto
Принадлежит: JTEKT Corp

A rolling bearing apparatus includes: a bearing including an inner ring, an outer ring, a plurality of rolling elements, and a cage; and an oil supply unit provided axially adjacent to the bearing. The oil supply unit includes: a tank in which to accumulate lubricant; and a pump provided with a nozzle that emits the lubricant as an oil droplet toward a target of the bearing. The oil supply unit further includes a wind guard covering a passing region of the oil droplet thus emitted from the nozzle and having an opening toward a target side. An inner region of the wind guard, including the passing region, has a passage shape causing an airflow from a nozzle-side toward the opening on the target side where a negative pressure is caused due to a bearing rotation.

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15-11-2018 дата публикации

THRUST ROLLER BEARING CAGE AND THRUST ROLLER BEARING

Номер: US20180328406A1
Автор: NAKASHIMA Yoshihito
Принадлежит: JTEKT CORPORATION

A thrust roller bearing cage having pockets for accommodating rollers includes an inner annular portion and cage bars that extend in a radial manner from a radially outer edge of the inner annular portion so as to separate the pockets from each other in a circumferential direction. The inner annular portion has a first axial end surface and a second axial end surface. The first axial end surface has an oil passage groove for guiding lubricating oil to the pockets. The second axial end surface is recessed more than the first axial end surface in an axial direction of the inner annular portion so as to form a recessed portion that communicates with the oil passage groove. The whole of a region of the first axial end surface that is located radially directly inside the cage bars is located radially outside the second axial end surface. 1. A thrust roller bearing cage having a plurality of pockets for accommodating rollers , the cage comprising;an inner annular portion having an axial direction, a radial direction, and a circumferential direction; anda plurality of cage bars extending in a radial manner from a radially outer edge of the inner annular portion so as to separate the plurality of pockets from each other in the circumferential direction, whereinthe inner annular portion has a first axial end surface and a second axial end surface,the first axial end surface has an oil passage groove for guiding lubricating oil to the plurality of pockets,the second axial end surface is recessed more than the first axial end surface in the axial direction of the inner annular portion so as to form a recessed portion that communicates with the oil passage groove,the first axial end surface has a region that is located radially directly inside the plurality of cage bars, anda whole of the region is located radially outside the second axial end surface.2. The thrust roller bearing cage according to claim 1 , whereinthe second axial end surface has an annular shape and is located ...

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15-11-2018 дата публикации

LUBRICATING OIL SUPPLY DEVICE

Номер: US20180328411A1
Принадлежит: THK CO., LTD.

The lubricating oil supply device including: a storage body, which has a large number of air gaps thereinside, and is configured to retain the lubricating oil in the air gaps; a casing, which includes an accommodating chamber for the storage body, has an opening facing the raceway shaft and opening the accommodating chamber, and is fixed to the slide member; and a coating body, which is arranged in the opening of the casing to be held in abutment against the raceway shaft, and receives the lubricating oil to be supplied from the storage body, wherein the storage body has a cutout portion corresponding to the opening of the casing, and wherein the coating body has an air gap ratio smaller than an air gap ratio of the storage body and is sandwiched in the cutout portion of the storage body to push outward the cutout portion. 13-. (canceled)4. A lubricating oil supply device , which is mounted to a slide member engaged with a raceway shaft through intermediation of a rolling element , and is configured to supply a lubricating oil to a rolling surface of the rolling element of the raceway shaft in accordance with a relative movement of the slide member and the raceway shaft , the lubricating oil supply device comprising:a storage body, which has a large number of air gaps thereinside, and is configured to retain the lubricating oil in the air gaps;a casing, which has an inner peripheral wall in the face of the raceway shaft, has an outer peripheral wall having an accommodating chamber for the storage body with the inner peripheral wall, is fixed to the slide member, and has an opening for opening the accommodating chamber in the face of the raceway shaft formed in the inner peripheral wall; andan application body, which is arranged in the accommodating chamber of the casing while facing the opening of the casing, has an air gap ratio lower than an air gap ratio of the storage body, and is held in abutment against a rolling surface of the rolling element of the raceway ...

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08-12-2016 дата публикации

BEARING WITH INTEGRATED OIL DELIVERY SYSTEM

Номер: US20160356313A1
Принадлежит: UNITED TECHNOLOGIES CORPORATION

An oil delivery system is provided. The system may comprise a bearing housing comprising an oil delivery cavity. A bearing may be pressed against the bearing housing. The bearing may comprise an outer ring with a passage formed through the outer ring. A bearing is also provided. The bearing may include an outer ring, and a passage formed through the outer ring. 1. An oil delivery system , comprising:a bearing housing comprising an oil delivery cavity;a bearing comprising an outer ring contacting the bearing housing; anda passage formed through the outer ring.2. The oil delivery system of claim 1 , wherein the passage is aligned with the oil delivery cavity.3. The oil delivery system of claim 1 , wherein the passage is configured to deliver oil to a surface opposite the passage at an angle between 0 degrees and 90 degrees relative to the surface.4. The oil delivery system of claim 1 , further comprising a clocking mechanism configured to align the passage and the oil delivery cavity.5. The oil delivery system of claim 1 , wherein the passage further comprises an inlet formed in the outer ring.6. The oil delivery system of claim 5 , wherein the passage further comprises a first passage formed into a spot face of the inlet and in the outer ring.7. The oil delivery system of claim 6 , wherein the passage further comprises a nozzle passage formed through the first passage and in the outer ring.8. The oil delivery system of claim 7 , wherein a portion of the outer ring is bored to create a surface defining an outlet of the nozzle passage.9. The oil delivery system of claim 1 , wherein the oil delivery cavity comprises a buffer plenum.10. The oil delivery system of claim 9 , wherein the buffer plenum comprises a cylindrical geometry.11. A bearing claim 9 , comprising:an outer ring; anda passage formed through the outer ring.12. The bearing of claim 11 , wherein the outer ring further comprises a clocking mechanism configured to align the outer ring in response to ...

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08-12-2016 дата публикации

ROLLING BEARING APPARATUS

Номер: US20160356314A1
Принадлежит: JTEKT CORPORATION

A rolling bearing apparatus includes: a bearing portion having an inner ring, an outer ring, a plurality of balls, and a cage; and a lubrication unit that is provided adjacently to an annular space formed between the inner ring and the outer ring and that has a pump that feeds a lubricant into the annular space. The pump has a main body portion having an internal space in which the lubricant is retained and being open at one end of the main body portion, a metal diaphragm fixed to a fixation portion that is a part of the main body portion so as to close the opening of the main body portion, and a piezoelectric element fixed to the diaphragm. At least the fixation portion of the main body portion is formed of metal, and the fixation portion and the diaphragm are fixed together by metal joining. 1. A rolling bearing apparatus comprising:a bearing portion having an inner ring, an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage that holds the rolling elements; anda lubrication unit that is provided adjacently to an annular space formed between the inner ring and the outer ring and that has a pump that feeds a lubricant into the annular space, whereinthe pump has a main body portion having an internal space in which the lubricant is retained and being open at one end of the main body portion, a metal diaphragm fixed to a fixation portion that is a part of the main body portion so as to close the opening of the main body portion, and a piezoelectric element fixed to the diaphragm, andat least the fixation portion of the main body portion is formed of metal, and the fixation portion and the diaphragm are fixed together by metal joining.2. The rolling bearing apparatus according to claim 1 , whereinthe main body portion has a first member that configures the internal space, a second member that is a member separate from the first member and that includes the fixation portion, and a seal member interposed between ...

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08-12-2016 дата публикации

ROLLING BEARING APPARATUS

Номер: US20160356315A1
Принадлежит: JTEKT CORPORATION

A rolling bearing apparatus includes a bearing portion and a lubrication unit. The lubrication unit is provided adjacently to an annular space in an axial direction. The annular space is formed between an inner ring and an outer ring, and the lubrication unit has a tank storing lubricant that is supplied to the annular space. The tank has an outer wall on a radially outer side, and a space formed on a radially inner side of the outer wall is a storage portion for storing the lubricant. An oil supply hole that is used to refill the storage portion with the lubricant is provided passing through the outer wall. The oil supply hole is open to the radially outer side. 1. A rolling bearing apparatus comprising:a bearing portion having an inner ring, an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage holding the rolling elements; anda lubrication unit provided adjacently to an annular space in an axial direction, the annular space being formed between the inner ring and the outer ring, the lubrication unit having a tank storing lubricant that is supplied to the annular space, whereinthe tank has an outer wall on a radially outer side,a space formed on a radially inner side of the outer wall is a storage portion for storing the lubricant,an oil supply hole that is used to refill the storage portion with the lubricant is provided so as to pass through the outer wall, andthe oil supply hole is open to the radially outer side.2. The rolling bearing apparatus according to claim 1 , wherein the oil supply hole provided in the outer wall serves also as an air hole.3. The rolling bearing apparatus according to claim 1 , further comprising a channel that allows a radially outer space and the annular space to communicate with each other claim 1 , the radially outer space communicating with the storage portion through the oil supply hole.4. The rolling bearing apparatus according to claim 3 , whereinthe rolling bearing ...

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17-12-2015 дата публикации

CYLINDRICAL ROLLER BEARING

Номер: US20150362009A1
Принадлежит: THYSSENKRUPP ROTHE ERDE GMBH

The invention relates to a cylindrical roller bearing for absorbing axial and radial forces, comprising a first bearing ring and a second bearing ring, which are arranged concentrically about an axis of rotation extending in the axial direction (x), wherein the second bearing ring has a groove, which is open in a radial direction and in which a projection of the first bearing ring engages, wherein a first radial bearing row and two axial bearing rows spaced in the axial direction are arranged between the projection and the groove, wherein the first radial bearing row supports the first bearing ring against the second bearing ring in a first radial direction and wherein a second radial bearing row is provided, which supports the first bearing ring against the second bearing ring in a second radial direction that is opposite to the first radial direction. According to the invention, the first bearing ring is divided in the axial direction into at least one first ring part having the projection and one second ring part, wherein the second radial bearing row is arranged between the second ring part and the second bearing ring at an axial distance from the projection. 1. A cylindrical roller bearing for absorbing axial and radial forces , having a first bearing ring and having a second bearing ring which are arranged concentrically about an axis of rotation running in an axial direction (x) , wherein the second bearing ring has a groove which is open in a radial direction and into which a lobe of the first bearing ring engages , wherein , between the lobe and the groove , there are arranged a first radial bearing row and two axial bearing rows which are spaced apart in the axial direction , wherein the first radial bearing row supports the first bearing ring in a first radial direction against the second bearing ring , and wherein a second radial bearing row is provided which supports the first bearing ring relative to the second bearing ring in a second radial direction ...

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14-12-2017 дата публикации

LUBRICATION SYSTEM AND METHOD FOR A BALL BEARING

Номер: US20170356498A1
Принадлежит:

A gravity fed bearing lubrication system for distributing lubricant to powertrain components in a motor vehicle, including a lubricant supply, a bearing, and a bearing housing. A three-dimensional cast-in portion of the bearing housing controls the communication of lubricant to the bearing. 1. A system for lubricating a bearing having an inner race and an outer race and a plurality of bearing members disposed there between , the bearing disposed in a housing , the system comprising:a bearing pocket formed in the housing for supporting the bearing, wherein the bearing pocket is annular and has an open end and partially closed end and a cylindrical portion disposed between the open end and the partially closed end wherein the cylindrical portion has a first end and a second end and a surface and wherein the bearing pocket is configured to receive the bearing and, wherein the partially closed end is partially closed by an annular flange extending radially inwardly from the surface of the cylindrical portion of the bearing pocket and wherein the second end of the cylindrical portion has an outwardly extending radial wall formed therein;a levy positioned along a portion of the annular flange, wherein the levy extends radially inwardly from the annular flange; anda weir formed in the surface of the cylindrical portion of the bearing pocket and extending axially from within the annular flange and through the radial wall to the open end, and,wherein the outer race of the bearing is positioned adjacent the radial wall and inside the bearing pocket and whereby a lubricating fluid is impeded by the raised flange in the bearing pocket and through the bearing until the fluid rises to a level of the weir.2. The system of wherein the weir is positioned at a first end of the levy.3. The system of wherein the weir is a u-shaped trough for capturing lubrication fluid and carrying the fluid from a first side of the bearing underneath the bearing to a second side of the bearing.4. The ...

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20-12-2018 дата публикации

BEARING ARRANGEMENT FOR A MUTUALLY TURNABLE UNIT WORKING UNDER HIGH PRESSURE

Номер: US20180363705A1
Автор: FALK Kurt
Принадлежит: Hudiksvalls Teknikcentrum AB

A bearing arrangement for a unit that is mutually turnable around a centre of rotation (R) comprising an external part () and an internal part (), which, with the aid of high hydraulically acting pressure, is arranged to achieve a reciprocating rotary motion, or that is arranged to achieve a high hydraulic pressure from an applied torque from a reciprocating motion, whereby the external part () is provided with side walls arranged to axially surround at least a part of the internal part (), and whereby the external part () comprises a radially inwardly arranged and essentially surrounding cavity () in which the internal part () is arranged such that it can be rotated, which cavity () is limited in the circumferential direction by at least one wing () that protrudes inwards from the external part () and also limited by at least one wing () that protrudes radially outwards from the internal part (), which wings () limit at least two chambers or compartments () between the external part () and the internal part (). At least one of the side walls of the external part is fixed connected with the, at least one, wing () that protrudes radially inwards towards the internal part (), which wing demonstrates a surface that faces radially inwards and that has a circular concave curvature for connection with an outwardly facing circular convex contact surface () at the internal part (). 1. A bearing arrangement for a unit that is mutually turnable around a centre of rotation , comprising an external part and an internal part , which , with the aid of high hydraulically acting pressure , is arranged to achieve a reciprocating rotary motion , or that is arranged to achieve a high hydraulic pressure from an applied torque from a reciprocating motion , whereby the external part is provided with side walls arranged to axially surround at least a part of the internal part , and whereby the external part comprises a radially inwardly arranged and essentially surrounding cavity in which ...

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28-12-2017 дата публикации

Synthetic Resin Retainer for Large Thrust Ball Bearings with Dry- and Wet-lubricant Management Systems

Номер: US20170370406A1
Автор: Tran Anh
Принадлежит:

A thrust ball bearing retainer a large size of bearings with the bearing raceways being modified using a surface enhancement process such as hard anodizing coating, which provides low friction coefficient and initial wear rate. The retainer material is selected to be molded, synthetic resin, self-lubricated material reinforced with carbon fiber, molybdenum disulfide, and PTPE. This lubrication system eliminates the thermal induced bearing torque effect due to viscosity. The retainer contains multiply segments with an inner race guided configuration, an alternative ball pocket cross section design and a ball pocket slotted configuration (1) to reduce the thermal induced effects due to coefficient of thermal expansion mismatch between the raceway and the retainer material (2) to enhance the producibility of the retainer due to out-of-round, out-of-flatness and torsional wrap, and (3) to reduce the manufacturing cost. The pocket design with an oval cross section instead of a circular cross section also reduces the localized thermal induced effect which would otherwise result in a pinching condition between the ball and the retainer. The alternative slotted retainer pocket design is used to increase the compliance between ball/pocket interfaces, which helps to reduce the dynamic induced effects. The ends of the retainer segments are designed to reduce the interactive transferring, circumferential force between two adjacent segments. 1. A ball bearing assembly comprising (a) top and bottom rings having ball bearing raceways facing one another and (b) a ball bearing retainer which supports a plurality of ball bearings , which is sandwiched between said top and bottom rings and which enables said ball bearings to reside within said raceways , the improvement in which said retainer comprises a plurality of arced segments which together form a circle.2. The ball bearing assembly according to wherein each of said retainer segments have ends respectively contacting adjacent ...

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28-12-2017 дата публикации

BEARING ASSEMBLY WITH INNER RING AND LUBRICATION THEREFOR

Номер: US20170370413A1
Автор: BEAUVAIS Gilles
Принадлежит:

A bearing assembly comprises an outer ring and an inner ring radially inward of the outer ring and cooperating therewith to form a roller volume. The inner ring has opposed faces including slots extending axially and circumferentially spaced. The slots extends axially to openings into the opposed axial faces and communicate with partial circumferential slots in the inner circumferential surface and in fluid communication with the roller volume through passages in the inner ring. A first plurality of the axial slots has a radial depth increasing from a first of the axial faces to the respective partial circumferential slot. A second plurality of the axial slots has a radial depth increasing from the second of the axial faces to the respective partial circumferential slot. Bearing elements are in the roller volume rollingly disposed against the outer ring and the inner ring. 1. A bearing assembly comprising:an outer ring defining a central axis of rotation for the bearing assembly;an inner ring disposed radially inwardly of the outer ring and cooperating therewith to form a roller volume, the inner ring having opposed axial faces and including axial slots formed in, extending axially along and circumferentially spaced around an inner circumferential surface, each said axial slots extending axially to openings into the opposed axial faces of the inner ring and communicating with a respective partial circumferential slot defined in the inner circumferential surface and being in fluid communication with the roller volume through a respective passage in the inner ring, a first plurality of the axial slots having a radial depth increasing from a first of the axial faces to at least the respective partial circumferential slot, and a second plurality of the axial slots having a radial depth increasing from the second of the axial faces to at least the respective partial circumferential slot; andbearing elements in the roller volume rollingly disposed against an inner ...

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27-12-2018 дата публикации

Pressure System for Bearing Assembly

Номер: US20180371838A1
Автор: Sawyer Michael, Tran Lap
Принадлежит:

A bearing pressure system includes a bearing assembly having a first component movable against a second component and at least one accumulator in fluid communication with an interface between the first and second components, the at least one accumulator holding a pressurized fluid. A method includes providing a bearing pressure system having a fluid communicable between an accumulator and an interface between components movable relative to each other, providing an amount of pressurized fluid from the accumulator to the interface when the pressure of the fluid at the interface falls below a pressure range being maintained, and transferring an amount of the fluid from the interface to the accumulator when the pressure of the fluid at the interface rises above the pressure range being maintained. 1. A bearing pressure system , comprising:a bearing assembly comprising a first component movable against a second component; andat least one accumulator in fluid communication with an interface between the first and second components, the at least one accumulator comprising a pressurized fluid.2. The bearing pressure system of claim 1 , wherein the at least one accumulator comprises:a first accumulator; anda second accumulator pressurized to a greater amount than the first accumulator;the first accumulator in fluid communication with the interface via a first accumulator line; andthe second accumulator in fluid communication with the interface via a second accumulator line.3. The bearing pressure system of claim 2 , further comprising:a pressure operated line extending from the second accumulator to the interface;a pilot operated check valve disposed along the pressure operated line;a pressure compensator; anda pilot line extending from the pressure compensator to the pilot operated check valve.4. The bearing pressure system of claim 2 , wherein the first accumulator and the second accumulator are in controllable fluid communication via a pressure relief line.5. The bearing ...

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19-11-2020 дата публикации

BEARING ASSEMBLY WITH INNER RINGS AND METHOD OF ALIGNMENT

Номер: US20200362916A1
Принадлежит:

A bearing alignment assembly comprises an outer ring. An inner ring assembly is disposed radially inwardly of the outer ring and cooperating therewith to form a roller volume. The inner ring assembly has a forward inner ring and an adjacent aft inner ring cooperating to provide an inner surface of the inner ring assembly. The forward inner ring includes axial grooves extending axially along and circumferentially spaced around a forward portion of the inner circumferential surface of the inner ring assembly. One or more of the axial grooves of the forward inner ring being an alignment axial groove having at least one cross-sectional dimension different than a corresponding cross-sectional dimension of other of the axial grooves of the forward inner ring, the aft inner ring including axial grooves extending axially along and circumferentially spaced around an aft portion of the inner circumferential surface, at least one of the axial grooves of the aft inner ring having the different cross-sectional dimension and positioned on the aft inner ring for alignment with the alignment axial groove. Rolling elements are rollingly disposed in the roller volume for relative rotational motion of the outer ring and the inner ring assembly. 1. A bearing alignment assembly comprising:an outer ring;an inner ring assembly disposed radially inwardly of the outer ring and cooperating therewith to form a roller volume, the inner ring assembly having a forward inner ring and an adjacent aft inner ring cooperating to provide an inner surface of the inner ring assembly, the forward inner ring including axial grooves extending axially along and circumferentially spaced around a forward portion of an inner circumferential surface of the inner ring assembly, at least one of said axial grooves of the forward inner ring being an alignment axial groove having at least one cross-sectional dimension different than a corresponding cross-sectional dimension of other of said axial grooves of the ...

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10-12-2020 дата публикации

LUBRICANT SUPPLYING DEVICE AND GUIDING DEVICE

Номер: US20200386273A1
Принадлежит: THK CO., LTD.

A lubricant supplying device has: a mounted member that is mounted to a moving member, which moves along a rail, and that is disposed with an interval between the mounted member and concave portions that are provided in the rail along a length direction of the rail; and a supply path unit that is removably attached to the mounted member, wherein the supply path unit has an introducing port into which a lubricant is supplied, supplying members that project out from the mounted member toward the concave portions and supply the lubricant to rolling surfaces of the concave portions on which rolling bodies that are provided at the moving member roll, and a tubular member that connects the introducing port and the supplying members, and the mounted member has an accommodating portion that is concave and accommodates the supply path unit from the length direction of the rail. 1. A lubricant supplying device comprising:a mounted member that is mounted to a moving member, which moves along a rail, and that is disposed with an interval between the mounted member and concave portions that are provided in the rail along a length direction of the rail; anda supply path unit that is removably attached to the mounted member,wherein the supply path unit has an introducing port into which a lubricant is supplied from an exterior, supplying members that project out from the mounted member toward the concave portions and supply the lubricant to rolling surfaces of the concave portions on which rolling bodies that are provided at the moving member roll, and a tubular member that connects the introducing port and the supplying members, andthe mounted member has an accommodating portion that is concave and accommodates the supply path unit from the length direction of the rail.2. The lubricant supplying device of claim 1 , whereinthe supply path unit is attached to the mounted member such that a pair of supplying members respectively project out toward a pair of concave portions that are ...

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15-03-2001 дата публикации

Radial-axial bearing unit

Номер: DE19942984A1
Автор: Thomas Dittenhoefer
Принадлежит: INA Waelzlager Schaeffler oHG

Eine aus Zylinderrollenlager (1) und Axial-Zylinderrollenlager (2) zusammengesetzte Radial-Axial-Lagereinheit zeichnet sich dadurch aus, dass der radial nach innen gerichtete Flansch (10) des Außenringes (3) des Zylinderrollenlagers (1) trennend zwischen dem Zylinderrollenlager (1) und dem Axial-Zylinderrollenlager (2) angeordnet ist und auf diese Weise eine erste Laufbahn (19) für das Axial-Zylinderrollenlager (2) bildet, eine zweite und eine dritte Laufbahn (20, 21) durch die zwischen beiden Zylinderrollenkränzen (12, 13) des Axial-Zylinderrollenlagers (2) angeordnete erste Laufscheibe (16) und eine vierte Laufbahn (22) durch die zweite Laufscheibe (17) gebildet sind, wobei die zweite Laufscheibe (17) mit dem Außenring (3) über Befestigungsschrauben (18) verbunden ist. DOLLAR A Auf diese Weise ist eine unverlierbare Baueinheit eines kombinierten Radial-Axial-Wälzlagers entstanden, deren Vorspannung vom Hersteller über die Axialausdehnung der ersten Laufscheibe (16) eingestellt werden kann. A radial-axial bearing unit composed of cylindrical roller bearings (1) and axial cylindrical roller bearings (2) is characterized in that the radially inward-facing flange (10) of the outer ring (3) of the cylindrical roller bearing (1) separates between the cylindrical roller bearing (1 ) and the axial cylindrical roller bearing (2) and in this way forms a first raceway (19) for the axial cylindrical roller bearing (2), a second and a third raceway (20, 21) through the between the two cylindrical roller rings (12, 13) of the axial cylindrical roller bearing (2), the first running disk (16) and a fourth track (22) are formed by the second running disk (17), the second running disk (17) with the outer ring (3) via fastening screws (18) connected is. DOLLAR A In this way, a captive unit of a combined radial-axial roller bearing has been created, the preload of which can be adjusted by the manufacturer via the axial extent of the first running disk (16).

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22-06-2018 дата публикации

一种船用大型可拆卸及自润滑的滚动轴承装置

Номер: CN108194513A
Принадлежит: Zhejiang Ocean University ZJOU

一种船用大型可拆卸及自润滑的滚动轴承装置,包括:轴承内圈,轴承外圈,滚子可拆卸保持架,设置在轴承内圈与轴承外圈之间,可拆卸保持架的兜孔内设置滚子泳圈式密封圈,设置在轴承两侧;加压油箱,通过油箱电磁阀与泳圈式密封圈连通,与加压泵连通;油箱电磁阀,设置在加压油箱箱体下侧,与外部控制组电连接;加压泵,与加压油箱连通,与泳圈式密封圈连通;外部控制组,与油箱电磁阀、加压泵以及泳圈式密封圈电连接。采用可拆卸保持架能够在滚动轴承的某个组成零部件出现磨损或损坏打开可拆卸保持架对磨损或损坏部位进行更换而不需要整体替换;密封圈设有自润滑装置可以维持轴承内部油压稳定延长轴承使用寿命。

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06-11-2018 дата публикации

一种自行润滑的法兰轴承装置

Номер: CN105782247B
Автор: 姚超坤, 王春松

本发明公开了一种自行润滑的法兰轴承装置,包括法兰、螺纹孔、封油层、滚珠、油道、集油层、轴承外壁、内圈、外圈、封环、弹簧装置、预紧块、套筒和输油孔,所述内圈外端设置为一层集油层,所述集油层上端设置一组输油孔,所述每个输油孔上端设置一条油道,其油道截面设置为梯形结构,所述集油层外端安装着滚珠,其油道将集油层与外圈内端连通,本发明通过在轴承内部内圈的内端设置一层集油层,再利用集油层上开设油道,通过输油孔加入润滑油后在轴承高速旋转离心的情况下,润滑油通过油道到达滚珠工作层,在工作时利用离心进行滚珠的润滑,并且利用封环将轴承完全密封,防止尘土进入,从而减少轴承磨损消耗,降低了噪音。

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17-03-2020 дата публикации

Rolling type bearing

Номер: CN110886768A
Автор: 郭昊卿

本发明提供一种滚动式轴承,包括轴承外、轴承内环、滚珠和保持架,本发明利用滚动的滚珠带动阀球运动,当每一颗滚珠的最高点与阀球接触后,阀球带动阀杆和阀芯上移,导流孔与出油孔之间导通,润滑油依次从内油环、储油仓、出油孔流过后洒落在滚珠的外壁上,并进一步的随着滚珠的滚动将润滑油带入保持架的内部,随着滚珠的转动,每一颗滚珠均会被润滑,润滑效果佳,而且,当滚珠的最高点过后,在弹簧的带动下,阀杆和阀芯复位,导流孔与出油孔之间不再导通,防止润滑油洒落在保持架的外壁上,从而能够有效的防止出现润滑油浪费的情况。

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10-04-2016 дата публикации

Linear actuator

Номер: RU2580979C2
Принадлежит: СМСи КАБУСИКИ КАИСА

FIELD: manufacturing technology. SUBSTANCE: linear actuator is designed for reciprocating movement of a movable work table. On guide block (76), which is part of guiding unit (16), on its lower surface facing main housing of cylinder (12), is formed by a pair of grooves circulation (80) of balls, and in grooves of circulation (80) of balls is multiple balls (58). On both end faces of guide block (76) are fitted respectively covering paired blocks (78a, 78b). Paired ball holders (82a, 82b), which are formed in form of grippers are engaged with cover units (78a, 78b) at introduction of holders in grooves of circulation (80) of balls and balls (58) are retained. Paired cover plates (86a, 86b) are installed on end surfaces of following units (78a, 78b), and gripping cover holders (84a, 84b) are installed so as to retain cover plates (86a, 86b), cover units (78a, 78b) and guide unit (76), connecting them together. EFFECT: simplification of design. 12 cl, 20 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 580 979 C2 (51) МПК F15B 15/14 (2006.01) F16C 29/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013156455/06, 19.06.2012 (24) Дата начала отсчета срока действия патента: 19.06.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ИСИБАСИ Коициро (JP), ТАКАНАСИ Сейджи (JP), САТО Мотохиро (JP), САТО Тосио (JP) (43) Дата публикации заявки: 10.07.2015 Бюл. № 19 R U (73) Патентообладатель(и): СМСи КАБУСИКИ КАИСА (JP) 30.06.2011 JP 2011-145472 (45) Опубликовано: 10.04.2016 Бюл. № 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.12.2013 2 5 8 0 9 7 9 (56) Список документов, цитированных в отчете о поиске: JP 10-61611 A, 06.03.1998. JP 8-93762 A, 09.04.1996. SU 1789040 A3, 20.09.1989. SU 1675597 A1, 07.09.1991. SU 1807256 A1, 07.04.1993. (86) Заявка PCT: 2 5 8 0 9 7 9 R U C 2 C 2 JP 2012/065588 (19.06.2012) (87) Публикация заявки PCT: WO 2013/002064 (03.01.2013) Адрес для ...

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11-09-1996 дата публикации

Lubrication structure of compressor main shaft bearing

Номер: JP2510425Y2
Автор: 隆行 河原
Принадлежит: Sanden Corp

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13-12-2019 дата публикации

Self-excitation type oil mist jet lubrication high-speed bearing, lubrication method and application

Номер: CN110566573A
Автор: 张志刚
Принадлежит: Individual

本发明公开了一种自激式油雾喷射润滑高速轴承、润滑方法及在电机上的应用。该高速轴承包括外圈套和内圈体,外圈套的两端通过非接触型的密封组件与内圈体连接,外圈套和内圈体之间设有储油空间和保持架,储油空间和保持架位于两个密封组件之间,保持架上设有滚动体,储油空间与保持架上设有滚动体的一侧相对应。本发明具有轴承结构简单、轴承高速及超高速运行寿命长、润滑系统构成简单、润滑油耗低、不需要压缩空气等优点;通过合理设计轴承内部结构,实现水平工况、垂直工况和倾斜工况的高速稀油润滑,也能承受较大的轴向载荷和径向载荷。将本发明轴承设置在电机转子两侧,实现在不使用复杂润滑系统和不耗用大量润滑油的前提下,提高电机转速。

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22-09-2004 дата публикации

Radial axial bearing unit

Номер: EP1083346B1
Принадлежит: INA Schaeffler KG

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