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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 7063. Отображено 100.
29-03-2012 дата публикации

Three row roller bearing, in particular for a wind turbine

Номер: US20120076655A1
Автор: Henrik Stiesdal
Принадлежит: SIEMENS AG

A three row roller bearing, in particular for a wind turbine, is provided. The three row roller bearing includes a row of radial rollers receiving radial load and a pair of rows of axial rollers receiving axial load. The axial rollers are tapered. A wind turbine using the three row roller bearing is also provided.

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Номер записи: 1
03-05-2012 дата публикации

Roller thrust bearing vibration isolator

Номер: US20120106887A1
Автор: Christopher Bean, Dana Patoine, Justin Brubaker
Принадлежит: Koyo Bearings North America LLC

A vibration isolator for use between a support structure and a roller thrust bearing including a first race, a second race, a bearing cage and at least one roller element. The vibration isolator includes a radially extending portion with a mating surface, a bearing surface, an inner peripheral edge and an outer peripheral edge, the radially extending portion being substantially disk-shaped. An annular flange extends axially from one of the inner peripheral edge and the outer peripheral edge of the radially extending portion, and at least one groove is defined by the mating surface of the radially extending portion. The bearing surface is configured to abut one of the first race and the second race and the mating surface is configured to abut the support structure such that a void is defined between the at least one groove and the support structure.

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Номер записи: 2
21-06-2012 дата публикации

Roller bearing and cage for a roller bearing

Номер: US20120155794A1
Автор: Aurelien Ghilbert-Simon, Helmut Hauck, Hubert Herbst, Sandra Kamm, Thomas Heege
Принадлежит: SKF AB

A roller bearing comprises an inner ring, an outer ring and an annular cage. The annular cage retains and guides at least one roller body. The annular cage comprises at least one pocket for retaining the roller body and at least one retaining rim disposed on one axial end of the pocket. The retaining rim extends at least in the radial direction relative to a main body of the cage.

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Номер записи: 3
02-08-2012 дата публикации

Slewing bearing and rotating section support device for wind turbine

Номер: US20120195538A1
Автор: Michio Hori, Nurumu Kuwahara
Принадлежит: NTN Corp

A slewing bearing assembly effective to suppress additional expenses such as a mold cost and to resolve the problem associated with insufficient strength brought about by voids and, also, a rotation section support apparatus for a wind powered turbine are provided. The slewing bearing assembly includes inner and outer rings having raceway grooves, and a plurality of balls interposed between the raceway grooves, and a spacer interposed between the neighboring balls. This slewing bearing assembly is a four point contact ball bearing, in which respective sectional shapes of the raceway grooves are so shaped as to represent shapes in which each balls contacts inner surfaces of the raceway grooves in the inner and outer rings at four points. The spacer is made of a resinous material having a melt viscosity within the range of 1000 to 2000 Pa·s at a temperature of 270° C.

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Номер записи: 4
13-12-2012 дата публикации

Thrust bearing assembly

Номер: US20120313471A1
Автор: Duncan Yiu Lung Wong, James Ching Sik Lau, Yuen Tung Louie
Принадлежит: Johnson Electric SA

A thrust bearing assembly for supporting an end surface against an axial load, includes a first part with a chamber; a second part disposed in the chamber and having a load surface facing the end surface; and a third part fixed with the first part and spaced from the second part. A reservoir for storing lubricant is formed in the chamber between the second part and third part. A narrow passage communicates the reservoir with the load surface to allow the lubricant to flow from the reservoir to the load surface to lubricate the interface between the load surface and the end surface when the axial load rotates.

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Номер записи: 5
08-08-2013 дата публикации

Turning bearing with rollers between outer ring and inner ring

Номер: US20130202240A1
Автор: Shunsuke Kikuchi
Принадлежит: Nippon Thompson Co Ltd

An effective contact length in race surfaces formed on grooved races cut in an outer ring and an inner ring is made as greater as permitted to improve the load-carrying capacity, and correspondingly guide parts born against axially opposite ends of a roller are made as less as possible in width to reduce frictional contact resistance applied to the axially opposite ends of the roller, thereby preventing a skew of the roller. An inside circular surface on the outer ring is staggered or different in level on opposite sides of a outside grooved race to make greater the race surface than an effective contact length of circular rolling surfaces of the rollers and correspondingly less the guide part in width than the race surface.

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Номер записи: 6
29-08-2013 дата публикации

Roller bearing

Номер: US20130223779A1
Автор: Mamoru Mizutani, Masaki Kato, Yasuyoshi Hayashi, Yuushi Onda
Принадлежит: NTN Corp

A rolling bearing assembly in which the number of components is reduced, and a high speed operation can be enabled with an increase of the stirring resistance being avoided by a sufficient discharge of lubricant oil and with an increase of temperature within the bearing assembly being suppressed. The rolling bearing assembly includes a pair of raceway rings, which are inner and outer rings, a plurality of rolling elements interposed between the inner and outer rings and a retailer for retaining the rolling elements. Each of the inner and outer rings is provided with an axially extending raceway ring extension portion and an oil supply and drainage mechanism for supplying a lubricant oil, which concurrently serves as a bearing cooling medium, to the bearing assembly and for discharging the lubricant oil to outside of the bearing assembly is provided in the raceway ring extension portion.

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Номер записи: 7
19-09-2013 дата публикации

Bearing and wind turbine containing the bearing

Номер: US20130243598A1
Автор: Alexander De Vries, Armin Olschewski, Arno Stubenrauch, Bernie Van Leeuwen, Sebastian Ziegler
Принадлежит: SKF AB

A bearing adjusts an angle of attack of a rotor blade of a wind turbine according and includes first and second bearing rings that are rotatable relative to each other. The first bearing ring includes, as a slider or translator of a linear motor, a plurality of magnetic field sources disposed adjacently around at least a part of its circumference. The magnetic field sources are disposed such that each two adjacently disposed magnetic field sources generate a magnetic field with alternating polarity. The second bearing ring includes, as a stator of the linear motor, a group of at least two coils disposed adjacently around at least part of its circumference. A wind turbine includes a rotor coupled to at least one rotor blade via such a bearing, which enables the angle of attack of the rotor blade to be adjusted during operation.

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Номер записи: 8
10-10-2013 дата публикации

Rolling-element bearing assembly having a retaining device

Номер: US20130266248A1
Автор: Thomas Wolf
Принадлежит: SKF AB

A rolling-element bearing assembly includes an inner ring, an outer ring and a plurality of rolling elements disposed between the inner ring and the outer ring on a common pitch circle diameter. A retaining device is attached to one of the inner ring and the outer ring and holds the rolling-element bearing assembly together without falling apart. The rolling elements include balls and rollers disposed on the common pitch circle diameter in an alternating manner. Further, at least one of the inner ring and the outer ring includes a raceway groove that axially supports the roller bearing balls.

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Номер записи: 9
31-10-2013 дата публикации

Grease supply system for rolling bearing

Номер: US20130284539A1
Автор: Yasuhiro Kobayashi
Принадлежит: JTEKT Corp

An grease supply system includes a discharge portion that forcibly discharges a grease from a rolling bearing, a discharge amount measuring portion that measures a discharge amount of grease, a replenishing amount setting portion that sets a replenishing amount of grease on the basis of the discharge amount of grease measured by the discharge amount measuring portion, and a supply portion that automatically replenishes the rolling bearing with the set amount of grease.

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Номер записи: 10
31-10-2013 дата публикации

Thrust roller bearing

Номер: US20130287331A1
Автор: Shinichi Sekido
Принадлежит: HITACHI CONSTRUCTION MACHINERY CO LTD

Between an inner race and an outer race, a plurality of thrust rollers supporting the inner race and the outer race capable of relative rotation are provided. A thrust cage for retaining each thrust roller capable of rolling is composed of a plurality of cage separate bodies separated and arranged in a roller accommodating space. The cage separate body has two projecting portions having a semicircular cross-sectional shape provided on an outer wall surface of an outside connecting portion spaced apart from each other in a peripheral direction of the outer race. With relative rotation between the inner race and the outer race, when each cage separate body is displaced toward an inner peripheral surface side of the outer race, a top portion of each projecting portion is brought into contact with the inner peripheral surface of the outer race.

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Номер записи: 11
14-11-2013 дата публикации

Member for rolling bearing and rolling bearing

Номер: US20130301965A1
Автор: Kouya Oohira, Masaki Egami, Yoshihide Himeno
Принадлежит: NTN Corp

The present invention provides a member, for a resin-made rolling bearing, which has a low extent of a moisture absorption-caused change in its dimension and mechanical properties, keeps sufficiently high mechanical properties after the member absorbs moisture, and is excellent in its resistance to hydrolysis, grease deterioration, and heat and also provides the rolling bearing in which the member for the rolling bearing is used. A rolling bearing ( 7 ) has an inner ring ( 8 ), an outer ring ( 9 ), a plurality of rolling elements ( 10 ) interposed between the inner ring ( 8 ) and the outer ring ( 9 ), a crown-shaped cage ( 11 ) for retaining the rolling elements ( 10 ), and a seal ( 12 ) covering an opening disposed at a gap between the inner ring ( 8 ) and the outer ring ( 9 ). The cage ( 11 ) and the seal ( 12 ) are moldings of a resin composed of polyphthalamide resin.

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Номер записи: 12
28-11-2013 дата публикации

Split cage for rolling bearing and rolling bearing using the split cage

Номер: US20130315522A1
Автор: Takeshi Miyachi
Принадлежит: JTEKT Corp

In a split cage for a rolling bearing, cage segments each having a plurality of pockets that accommodate rolling elements are arranged in a circular manner along the circumferential direction. Protrusions are formed on end faces of rims of one of the adjacent cage segments, and grooves are formed in end faces of rims of the other one of the adjacent cage segments. By fitting the protrusions into the grooves, the adjacent cage segments are prevented from moving relative to each other in the radial direction.

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Номер записи: 13
16-01-2014 дата публикации

Jig for split cage and method of assembling rolling bearing

Номер: US20140013603A1
Автор: Takeshi Miyachi
Принадлежит: JTEKT Corp

A split cage is configured by annularly arranging cage segments in a circumferential direction. Each cage segment includes a pair of first and second rim portions spaced from each other by a predetermined interval and facing each other, and bar portions extending from the first rim portion to the second rim portion. Spaces, each of which is surrounded by the adjacent bar portions and the first and second rim portions, are formed as pockets that house rolling elements. A jig for the split cage includes a looped band wound on an outer peripheral side of the first or second rim portions of the cage segments annularly arranged. The band includes a lock portion that is able to adjust a loop length of the band with respect to an outer peripheral length of the first or second rim portions, and that is able to fix the adjusted loop length.

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Номер записи: 14
27-02-2014 дата публикации

Rolling bearing

Номер: US20140056547A1
Автор: Junji Murata
Принадлежит: JTEKT Corp

A rolling bearing includes an inner ring, an outer rind and a plurality of rolling elements. Multiple dynamic pressure generating grooves are formed in at least one of an inner ring raceway surface and an outer ring raceway surface so as to be arranged at equal intervals in the circumferential direction. The number of the dynamic pressure generating grooves and the number of the rolling elements are set so as to establish a relationship expressed by A=[{n+(n+1)}/2]·Z, where A is the number of the dynamic pressure generating grooves, Z is the number of the rolling elements, and n is a natural number (1, 2, 3 . . . )

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Номер записи: 15
05-01-2017 дата публикации

Self-Leveling Thrust Bearing Retainer

Номер: US20170002857A1
Автор: Neil A. Guest, JR.
Принадлежит: Elliott Co

A thrust bearing includes a bearing retainer including a first ring and a second ring radially spaced from the first ring, the first ring and the second ring defining an annular passageway therebetween, and at least two bearing pad retaining arrangements extending from a first surface of the second ring, each bearing pad retaining arrangement defining a retaining channel therein, and at least two bearing pads circumferentially spaced within the bearing retainer. The bearing pads may be held within the bearing retainer via the bearing pad arrangements.

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Номер записи: 16
07-01-2016 дата публикации

Adjustable linking arm assembly

Номер: US20160003290A1
Автор: Dennis M. Mark, Jacob J. DOMAGALLA, Jason K. Trotter, Kevin J. SZYMANSKI, Paul F. Donovan, Robert K. Dutzi
Принадлежит: ILLINOIS TOOL WORKS INC

A linking arm assembly which is readily adaptable to assume a wide range of operative lengths and configurations using a small number of common components. Linking arm assemblies consistent with the present disclosure may be adjusted for use in very different applications while using common components. Accordingly, substantial efficiencies may be achieved while performance is maintained.

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Номер записи: 17
07-01-2016 дата публикации

Cage portion and method for the production thereof

Номер: US20160003298A1
Автор: Hermann Geyer, Horst Masuch, Michael Bernutz
Принадлежит: Schaeffler Technologies AG and Co KG

A cage section ( 36 ), particularly for a meander-shaped cage ( 12 ) of a rolling contact bearing ( 14, 15 ), including at least one cage part ( 10, 11, 11 ′) made of a Z-shaped bent sheet-metal strip ( 16, 17 ) with a first arm ( 20 ), a connecting part ( 18 ) and a second arm ( 22 ), wherein the first arm ( 20 ) and the second arm ( 22 ) are bent substantially perpendicularly to the sheet metal plane ( 23 ). The invention further relates to a method for producing a cage portion ( 36 ), particularly for a meander-shaped cage ( 12 ) of a rolling contact bearing ( 14, 15 ).

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Номер записи: 18
04-01-2018 дата публикации

Split bearing cage

Номер: US20180003230A1
Автор: Franziska Meyer, Juergen Weiglein
Принадлежит: SKF AB

A split bearing cage for a rolling-element bearing assembly includes a first bearing cage segment and a second bearing cage segment each having two side ring sections axially spaced apart by a plurality of bridges. Adjacent pairs of the bridges define rolling-element receiving pockets for receiving rolling elements of the rolling-element bearing assembly and for holding the rolling elements spaced apart from each other and for guiding the rolling elements. The first bearing cage segment is connected to the second bearing cage segment via a swivel joint that may be formed of a bolt element on a first end of the first bearing cage segment and an at least partial eyelet on the first end of the second bearing cage segment.

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Номер записи: 19
04-01-2018 дата публикации

Bearing Compression Strap

Номер: US20180003239A1
Автор: Crowther Ashley, Glinsky Chad Phillip, McNichols Colin
Принадлежит:

A tensioning arrangement for a bearing ring is disclosed, which introduces compressive force towards a rotational centre of the bearing ring, to prevent bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement comprises a strap and a tensioner. The strap has a connector at each end, and tensioner has a means for connecting to the connectors. The tensioner also has a means for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring. 1. A tensioning arrangement for a bearing ring comprising:a strap, in which said strap comprises a first connector at a first end and a second connector at a second end; means for connecting to said connectors; and', 'means for applying tension to the strap;, 'a tensioner, in which said tensioner compriseswherein, in use, the strap is connected to the tensioner and arranged around the bearing ring and actuation of the tensioner reduces a circumferential length of the strap in contact with the bearing ring and increases tension in the strap, thereby applying compressive force to a rotational centre of the bearing ring sufficient to prevent the bearing ring from distorting.2. The tensioning arrangement of in which said first connector comprises a stud.3. The tensioning arrangement of in which said second connector comprises a threaded stud.4. The tensioning arrangement of in which said first connector comprises a loop.5. The tensioning arrangement of in which said loop is formed from the strap.6. The tensioning arrangement of in which said one of said connectors is a direct connection to said tensioner.7. The tensioning arrangement of in which said means for connecting comprises a channel for receiving one end of said strap.8. The tensioning arrangement of in which said channel comprises a slot.9. The tensioning arrangement of in which ...

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Номер записи: 20
07-01-2021 дата публикации

Rolling bearing with integrated optical fiber sensor

Номер: US20210003478A1
Автор: Alexander Mocnik, Matthias Zauner, Olivier Verbe, Yves-Andre Liverato
Принадлежит: SKF AB

The rolling bearing provides a first ring, a second ring and at least one row of rolling elements arranged therebetween. Each of the first and second rings include an inner bore having an outer surface and at least one raceway for the row of rolling elements formed on one of the inner bore and outer surface. The first ring provides at least one part ring delimiting the raceway, and at least one sleeve secured to the part ring and delimiting at least partly the other of the inner bore and outer surface of the first ring. The rolling bearing further provides at least one optical fiber sensor mounted inside at least one circumferential groove formed on the first ring and passing through at least one optical fiber sensor passage opening into the circumferential groove.

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Номер записи: 21
12-01-2017 дата публикации

FRICTION BUSHING

Номер: US20170009804A1
Автор: Garing Francis Xavier, KRUSE Mark A., Stephens Benjamin D.
Принадлежит: B/E Aerospace, Inc.

In a preferred embodiment a friction bushing is configured to rotate a shaft with resistance having a housing with a bore to receive the shaft; a flange plate positioned on the housing around the bore; and a number of flanges that protrude axially from the flange plate to receive the shaft, where the flanges generate a radially-directed force by being flexible from a relaxed radius to a shaft radius of the shaft, and the flanges have internal circumferentially spaced surfaces in contact with an external surface of the shaft having a topology to control the resistance as the shaft rotates in the friction bushing. 1. A friction bushing to rotate a shaft with resistance , comprising:a housing having a bore to receive the shaft;a flange plate positioned on the housing around the bore; anda plurality of flexible flanges protruding axially from the flange plate and arranged in a first axial circumference at an end distal to the flange plate, wherein the plurality of flexible flanges flex outwardly upon introduction of the shaft, increasing the end distal to the flange plate to a second axial circumference;wherein, upon introduction of the shaft within the plurality of flanges, the plurality of flanges generates a radially-directed force, providing resistance as the shaft rotates in the housing.2. The friction bushing of claim 1 , wherein each flange of the plurality of flange includes an enlarged terminal portion at the end distal to the flange plate.3. The friction bushing of claim 2 , further comprising an annular clip inserted between the flange plate and the enlarged terminal portion of each flange claim 2 , wherein the annual clip exerts force against the plurality of flanges to increase an intensity of the resistance.4. The friction bushing of claim 3 , wherein the annular clip includes a tensioner configured to adjust the intensity of the resistance.5. The friction bushing of claim 1 , wherein the plurality of flanges includes at least six flanges.6. The friction ...

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Номер записи: 22
11-01-2018 дата публикации

Walking Rig Creeper Interface

Номер: US20180010635A1
Автор: Mendoza Raul
Принадлежит:

An extreme load creeper interface comprising a planar roller array wherein a plurality of extreme load rollers with parallel rotational axes are dispersed both laterally and longitudinally within the plane, so as to fractionalize a weight applied perpendicular to the plane, and thereby promote longitudinal motion of the roller array in a direction perpendicular to the plurality of roller rotational axes. 1. An extreme load creeper interface , comprising:a planar roller array comprising a plurality of extreme load rollers;the planar roller array having a line-of-travel;each said extreme load rollers having a rotational axis;each of the plurality of extreme load rollers mounted rotatably on a roller pin;the plurality of rotational axes being parallel to each other, and perpendicular to the line-of-travel;the plurality of extreme load rollers being dispersed within the planar roller array.2. The extreme load creeper interface of claim 1 , further comprising:the plurality of extreme load rollers being arranged linear banks within the planar roller array.3. The speaker installation box of claim 1 , further comprising:the plurality of extreme load rollers being spaced apart laterally within the planar roller array.4. The extreme load creeper interface of claim 1 , further comprising:the plurality of extreme load rollers being spaced apart longitudinally within the planar roller array.5. The extreme load creeper interface of claim 1 , further comprising:a pair of longitudinal side rails;an end of at least one roller pin attached to each longitudinal side rail.6. The extreme load creeper interface of claim 1 , further comprising:an interior rail;an end of at least one roller pin attached to the interior rail.7. An extreme load creeper interface claim 1 , comprising:a planar roller array comprising a plurality of extreme load rollers;the planar roller array having a line-of-travel;each said extreme load rollers having a rotational axis;each of the plurality of extreme load ...

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Номер записи: 23
11-01-2018 дата публикации

ROLLER BEARING, RETAINER SEGMENT OF ROLLER BEARING FOR SUPPORTING MAIN SHAFT OF WIND-POWER GENERATOR, AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR

Номер: US20180010639A1
Автор: NAKAMIZO Eiichi, OMOTO Tatsuya, SAKAGUCHI Tomoya
Принадлежит:

A tapered roller bearing () has a plurality of retainer segments () each having a pocket to house a tapered roller (), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring () and an inner ring (). The retainer segment () is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance () is provided between the first retainer segment () and the last retainer segment () after the plurality of retainer segments () have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance () is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment () and smaller than 0.12% thereof at room temperature. 122-. (canceled)24. The tapered roller bearing according to claim 23 , wherein a crowning is formed on the rolling surface of the tapered roller bearing claim 23 ,{'sub': 1', '1, 'a relation D>dis satisfied in all of the tapered rollers,'}{'sub': 1', '1, 'wherein Dis a roller diameter of the tapered roller at the top of the crowning of the tapered roller and dis the distance between the track surfaces at the position corresponding to the top of the crowning.'}25. The tapered roller bearing according to claim 23 , wherein a relation D>d is satisfied in the entire rolling surface of the tapered roller. The present invention relates to a roller bearing, a retainer segment of a roller bearing for supporting a main shaft of a wind-power generator, and a main shaft support structure of the wind-power generator and more particularly, to a retainer segment arranged in a circumferential direction to form one retainer of a roller bearing for supporting a main shaft of a wind-power generator, and a roller bearing and a main shaft support structure containing the retainer segment of the roller bearing for supporting the main shaft of the wind-power generator.A ...

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Номер записи: 24
11-01-2018 дата публикации

MECHANICAL SHOCK RESISTANT MOTORIZED DRIVE ASSEMBLY

Номер: US20180010728A1
Автор: Ray Peter Sargon, Shannahan Michael Scott
Принадлежит: THREAT SPECTRUM INC.

An electronic device can include a motor that rotates a shaft that is coupled to a gear. A belt or a chain can be placed in contract with the gear and other rotational devices. For optimum performance, the chain or chain should be adjusted to an optimum tension. The tension can be adjusted by moving the motor and securing the motor in a position the provided the optimum tension. Alternatively, the motor can be in a fixed rigid position and an idler pulley in contact with the belt or chain can be positioned to provide the optimum tension. 1. A motor drive assembly comprising:a motor for rotating a shaft, the motor attached to a motor plate;a gear track attached to the motor plate;a pawl having a rotational axis and a tip;a pawl lock pin attached to a base wherein the pawl rotates about the pawl lock pin;a spring for holding the tip of the pawl against the grooves of the gear track;a first rail attached to the base wherein the motor plate is in sliding contact with a surface of the rail;wherein the pawl allows the gear track and motor to move in one direction over the first rail.2. The motor drive assembly of further comprising:lock down bolts that extend through slots in the motor plate, wherein the motor plate slides over the first rail to a desired position and the lock down bolts rigidly secure the motor plate to the first rail at the desired position.3. The motor drive assembly of further comprising:a gear coupled to the shaft of the motor; anda belt that rotates around the gear;wherein the pawl and gear track maintain a proper tension on the belt.4. The motor drive assembly of further comprising:a second gear in physical contact with the belt.5. The motor drive assembly of wherein the second gear is coupled to an output shaft.6. The motor drive assembly of further comprising:a gear coupled to the shaft of the motor; anda chain that rotates around the gear;wherein the pawl and gear track maintain a proper tension on the chain.7. The motor drive assembly of ...

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Номер записи: 25
10-01-2019 дата публикации

SEGMENTED CAGE FOR ROLLING BEARING

Номер: US20190010985A1
Автор: Capoldi Bruno
Принадлежит:

The cage segment for rolling bearing has a main body provided with at least two pockets each configured to receive at least a roller, with two opposite cylindrical faces extending circumferentially and delimiting radially the cage segment, and with two opposite frontal faces delimiting axially the cage segment. The cage segment further provides a first group of protruding means affixed to the main body and protruding relative to the cylindrical faces, and a second group of protruding means affixed to the main body and protruding relative to the frontal faces. 1. A cage segment for a rolling bearing comprising:a main body provided with at least two pockets each configured to receive at least a roller, with two opposite cylindrical faces extending circumferentially and delimiting radially the cage segment, and with two opposite frontal faces delimiting axially the cage segment, whereinthe cage segment further includes a first group of protruding means affixed to the main body and protruding relative to the cylindrical faces, and a second group of protruding means affixed to the main body and protruding relative to the frontal faces.2. The cage segment according to claim 1 , wherein the protruding means of the first and second groups are made from material having a friction coefficient less than the one of the main body.3. The cage segment according to claim 1 , wherein the protruding means of the first and second groups are made from bronze.4. The cage segment according to claim 1 , wherein the main body is made from steel.5. The cage segment according to claim 1 , wherein the protruding means of the first group protrude radially relative to the cylindrical faces.6. The cage segment according to claim 1 , wherein the protruding means of the second group protrude axially relative to the frontal faces.7. The cage segment according to claim 1 , wherein the protruding means of the first and second groups are respectively regularly spaced apart one relative to the other in ...

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Номер записи: 26
21-01-2016 дата публикации

Rolling-element bearing having an oblique running surface section

Номер: US20160017921A1
Автор: Eve Goujon, Norbert Huhn, Riad Bauch
Принадлежит: SKF AB

A rolling-element bearing with line contact includes bearing inner and outer parts having running surfaces, and at least one rolling element is disposed between and makes line contact with the bearing inner and outer parts. A width of the outer running surface and/or a width of the inner running surface is narrower at least in a first circumferential partial region than a length of the rolling-element, and in the first partial region the bearing outer part running surface and/or the bearing inner part running surface extends obliquely to a rolling direction of the at least one rolling element.

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Номер записи: 27
21-01-2021 дата публикации

JOINT

Номер: US20210018039A1
Автор: Hübner Reinhard
Принадлежит:

The invention relates to a joint, in particular for use in a parallel kinematic positioning device, which has at least three rotational degrees of freedom, and which has a rigid carrier element and at least two elastically deformable joint devices arranged overlapping one another at least in sections on the carrier element, wherein each of the joint devices comprises two joint elements, and each of the joint elements has an elongated connecting section and a securing section arranged at one end of the connecting section for securing the joint device to a higher level unit, and the two connecting sections of each joint device extend in a direction pointing away from the carrier element in such a way that they cross over one another. 112.-. (canceled)13. A joint having at least three degrees of freedom of rotation , the joint comprising: a rigid carrier element and at least two elastically deformable joint devices , which are arranged at the carrier element in an overlap at least in a section , wherein each of the joint devices comprises two joint elements , and wherein each of the joint elements comprises an elongated web section and a fastening section which is arranged at one end of the web section for fastening the joint device at a higher-level unit , and wherein the two web sections of each joint device extend in a direction which points away from the carrier element in such a way that the same cross one another.14. The joint according to claim 13 , wherein at least one web section of a joint device extends at least in a section between the two web sections of the other joint device.15. The joint according to claim 14 , wherein the web sections of one joint device are arranged at an angle to the web sections of the other joint device claim 14 , wherein the angle amounts to between 60 degrees and 90 degrees.16. The joint according to claim 13 , wherein an area of the crossing of the web sections of one joint device comprises a different distance from the support ...

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Номер записи: 28
21-01-2021 дата публикации

DIFFERENTIAL TRANSMISSION

Номер: US20210018080A1
Автор: Lim Sun Ho
Принадлежит:

Provided is a differential transmission. The differential transmission includes a pin-gear type main body unit which includes a pin-gear type main body housing in which input or output is performed through a plurality of pins, the plurality of pins being rotatably coupled in a circumferential direction of an outer circumferential surface thereof, a high-speed shaft provided at one side of the pin-gear type main body housing and through which input or output of a first speed that is a relatively high speed is performed, a low-speed shaft provided at the other side of the pin-gear type main body housing and through which input or output of a second speed that is less than the first speed is performed, and a reduction portion provided inside the pin-gear type main body housing and reducing an input speed; and a high-speed shaft connection unit connected to the high-speed shaft of the pin-gear type main body unit and through which input or output is performed through the high-speed shaft. 1. A differential transmission comprising:a pin-gear type main body unit which comprises a pin-gear type main body housing in which input or output is performed through a plurality of pins, the plurality of pins being rotatably coupled in a circumferential direction of an outer circumferential surface thereof, a high-speed shaft provided at one side of the pin-gear type main body housing and through which input or output of a first speed that is a relatively high speed is performed, a low-speed shaft provided at the other side of the pin-gear type main body housing and through which input or output of a second speed that is less than the first speed is performed, and a reduction portion provided inside the pin-gear type main body housing and reducing an input speed; anda high-speed shaft connection unit connected to the high-speed shaft of the pin-gear type main body unit and through which input or output is performed through the high-speed shaft.2. The differential transmission of ...

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Номер записи: 29
26-01-2017 дата публикации

SEGMENTED CAGE FOR A BEARING

Номер: US20170023064A1
Автор: Capoldi Bruno
Принадлежит: AKTIEBOLAGET SKF

A segmented cage for a bearing is provided. The segmented cage provides at least two successive segments each being able to receive at least one rolling element. These segments have inner and outer circumferential faces and adjacent end faces abutting circumferentially one on the other. The adjacent end faces are shaped to obtain only one contact line or contact point between them, the contact point or contact line being distant from the inner and outer circumferential faces. 1. A segmented cage for a bearing , comprising:at least two successive segments each being able to receive at least one rolling element, the segments having inner and outer circumferential faces and first and second adjacent end faces abutting circumferentially one on the other, whereinthe adjacent end faces are shaped to obtain only one contact line or contact point between them, the contact point or contact line being distant from the inner and outer circumferential faces.2. The cage according to claim 1 , wherein the contact point or contact line are located in central zones of the ends faces distant from the inner and outer circumferential faces.3. The cage according to claim 1 , wherein the first one of the end faces has a convex shape.4. The cage according to claim 3 , wherein the second one of the end faces has a convex shape.5. The cage according to claim 3 , wherein the second one of the end faces has a concave shape.6. The cage according to claim 3 , wherein the second one of the faces has a flat shape.7. The cage according to claim 1 , wherein the first end face has a convex cylindrical shape claim 1 , with an axis parallel to the axis of the cage.8. The cage according to claim 7 , wherein the second end face has a convex cylindrical shape.9. The cage according to claim 7 , wherein the second end face has a concave cylindrical shape claim 7 , the radius of the concave cylindrical shape being greater than the radius of the convex cylindrical shape.10. The cage according to claim 1 , ...

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Номер записи: 30
24-01-2019 дата публикации

SLIDE BEARING COMPRISING A PRIMER SYSTEM AS ADHESION PROMOTER

Номер: US20190024714A1
Автор: Schmitjes Olaf
Принадлежит:

A slide bearing can include a metal support, a primer layer, an adhesive layer applied directly thereto, and a sliding layer applied to the adhesive layer. The primer layer can include an oligomeric condensate of at least one silanol selected from the group having the formula: 2. The method according to claim 1 , wherein the applying of the primer liquid includes spraying claim 1 , brushing claim 1 , and dip coating.3. The method according to claim 1 , wherein the primer liquid comprises an organic solvent claim 1 , water claim 1 , or a combination thereof.4. The method according to claim 3 , wherein the organic solvent is selected from methanol claim 3 , ethanol claim 3 , propanol claim 3 , iso-propanol claim 3 , butanol claim 3 , diethyl ether claim 3 , tetrahydrofuran claim 3 , acetone claim 3 , ethyl acetate claim 3 , or any combination thereof.5. The method according to claim 1 , wherein the adhesive layer is in the form of a film claim 1 , a foil claim 1 , a powder claim 1 , or any combination thereof.6. The method according to claim 1 , wherein applying the sliding layer includes laminating claim 1 , coiling paste spreading a sliding precursor and curing claim 1 , or any combination thereof.7. The method according to claim 1 , wherein the adhesive layer is selected from the group consisting of perfluoroalkoxyethylene (PFA) claim 1 , tetrafluoroethylene-perfluoro(methyl vinyl ether) copolymer (MFA) claim 1 , ethylene tetrafluoroethylene (ETFE) claim 1 , tetrafluoroethylene-hexafluoropropylene (FEP) claim 1 , and any combination thereof.8. The method according to claim 1 , wherein R′ is selected from the group consisting of vinyl claim 1 , difluorovinyl claim 1 , trifluoromethyl claim 1 , pentafluoroethyl claim 1 , methoxy claim 1 , ethoxy claim 1 , trifluoromethoxy claim 1 , pentafluoroethoxy claim 1 , dimethyl amino claim 1 , diethylamino claim 1 , di(trifluoromethyl)amino claim 1 , and di(pentafluoroethyl)amino.10. The method according to claim 1 , wherein z ...

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Номер записи: 31
23-01-2020 дата публикации

SEAL

Номер: US20200025242A1
Автор: Hansen Mathias Muff
Принадлежит:

Provided is a seal for a bearing arrangement for sealing an interior space between at least two parts of the bearing arrangement rotatable relatively to each other, and in which the interior space contains a lubricant, whereby the seal includes a seal part which is shaped for conveying the lubricant with a direction component pointing into the interior space. 1. A seal for a bearing arrangement for sealing an interior space between at least two parts of the bearing arrangement rotatable relatively to each other , in which the interior space contains a lubricant , wherein the seal comprises a seal part which is shaped for conveying the lubricant with a direction component pointing into the interior space.2. The seal according to claim 1 , wherein the seal part comprises an edge with a lubricant-guiding edge profile claim 1 , which is a periodically repeated pattern.3. The seal according to claim 2 , wherein the periodically repeated pattern is one of a saw-tooth profile claim 2 , a pattern consisting of spaced triangles claim 2 , a sinusoidal profile claim 2 , and a superposition thereof.4. The seal according to claim 1 , wherein the seal part is one-piece or consists of two or more segments which are connectable to each other.5. The seal according to claim 1 , wherein the seal comprises a seal body connected to the seal part.6. The seal according to claim 5 , wherein the seal body is glued to the seal part.7. The seal according to claim 5 , wherein the edge of the seal part protrudes the seal body.8. The seal according to claim 5 , wherein the seal body consists of an elastic and compressible material.9. The seal according to claim 8 , wherein the seal body consists of one of rubber claim 8 , cellular rubber claim 8 , and foamed polymer.10. The seal according to claim 1 , wherein the seal part consists of a polymer material.11. A wind turbine comprising at least one rotor and at least one stationary structure claim 1 , in which the rotor and the stationary structure ...

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Номер записи: 32
23-01-2020 дата публикации

Radial foil bearing

Номер: US20200025245A1
Автор: Naomichi Omori
Принадлежит: IHI Corp

The radial foil bearing (3, 3A, 3B) includes: a housing (12) provided with an insertion hole (12a), a pair of engagement grooves (15) extending outward in a radial direction from an inner peripheral edge of the insertion hole being provided in both end surfaces in an axial direction of the housing; a back foil (11) disposed on an inner circumferential surface of the insertion hole; an intermediate foil (10) supported by the back foil; and an engagement member (30) including a pair of engagement legs (31) engaging with the pair of engagement grooves, and a connection portion (32) connecting the pair of engagement legs. The intermediate foil is provided with a recess (10c) recessed and protruding toward the back foil, and the connection portion is disposed in the recess.

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Номер записи: 33
23-01-2020 дата публикации

SEALED ROLLER BEARING

Номер: US20200025252A1
Автор: Neukirchner Jörg, Rettinger Manuel
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A roller bearing for a wind turbine includes a first inner ring with an axial protrusion, a second inner ring, an outer ring arranged coaxially over the first inner ring and the second inner ring, and first and second pluralities of rolling elements. The rolling elements roll on respective inner ring and outer ring raceways. The roller bearing also has a bearing interior at least partially filled with a lubricant, an additional ring arranged radially outwardly on the axial protrusion, an axial extension connected to the outer ring and includes a cylindrical inner sealing face, and a radial shaft sealing ring installed on the additional ring in a radially outward manner. The radial shaft sealing ring has a radially outwardly directed sealing lip in radial contact with the cylindrical inner sealing face. 110.-. (canceled)11. A roller bearing for a wind turbine comprising:a first inner ring comprising an axial protrusion;a second inner ring;an outer ring arranged coaxially over the first inner ring and the second inner ring;at least one rolling-element cage; arranged in the at least one rolling-element cage in a first rolling-element row between the first inner ring and the outer ring; and', 'rolling on a first inner ring raceway and a first outer ring raceway;, 'a first plurality of rolling elements arranged in the at least one rolling-element cage in a second rolling element row between the second inner ring and the outer ring; and', 'rolling on a second inner ring raceway and a second outer ring raceway;, 'a second plurality of rolling elementsa bearing interior at least partially filled with a lubricant;an additional ring arranged radially outwardly on the axial protrusion;an axial extension connected to the outer ring and comprising a cylindrical inner sealing face; anda radial shaft sealing ring installed on the additional ring in a radially outward manner and comprising a radially outwardly directed sealing lip in radial contact with the cylindrical inner ...

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Номер записи: 34
28-01-2021 дата публикации

Blade Flexure Assembly with Replaceable Elements

Номер: US20210025443A1
Автор: Lazzaro Anthony
Принадлежит:

A blade flexure assembly that includes first and second mounting structures. Two or more flexure blades are connected to and extend between the first and second mounting structures. Clamping blocks clamp the flexure blades to the mounting structures. The modular design of the assembly provides for replacing one or more of the flexure blades to adjust one or more functional aspects of the assembly. 1. A blade flexure assembly comprising:a plurality of removable flexure blades, each removable flexure blade having a first end and second end;a plurality of mounting structures, each mounting structure having a curved surface to receive one of the first and second ends of one of the flexure blades; anda plurality of clamping blocks, wherein each clamping block clamps one of the first and second ends of the flexure blade to one of the curved surfaces of the mounting structure, each clamping block having a curved surface with a shape different than the respective curved surface of the mounting structure such that the one of the first and second ends is clamped at two line contacts and a gap exists between the flexure blade and either the mounting structure or the clamping block.2. The blade flexure assembly of claim 1 , wherein the flexure blades comprise material with a higher tensile strength than material of the mounting structures.3. The blade flexure assembly of claim 1 , further comprising a plurality of fasteners to join the mounting structures to the clamping blocks.4. The blade flexure assembly of claim 1 , wherein each flexure blade comprises a first curved section at the first end claim 1 , a second curved section at the second end claim 1 , and an intermediate section between the first and second curved sections claim 1 , the intermediate section having a different amount of curvature than either of the first and second curved sections.5. The blade flexure assembly of claim 1 , wherein each flexure blade comprises a curved section with a first radius claim 1 , ...

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Номер записи: 35
28-01-2021 дата публикации

Double-row self-aligning roller bearing

Номер: US20210025448A1
Автор: Kazumasa Seko, Masaki Nakanishi, Michio Hori, Takashi Yamamoto, Yasuyuki Inoue
Принадлежит: NTN Corp

Provided is a double-row self-aligning roller bearing including: an inner ring; an outer ring having a spherical raceway surface; and rollers arranged in two rows and interposed between the inner ring and the outer ring, wherein a ratio of a contact angle θ1 in one row to a contact angle θ2 in the other row falls within a range of 0.25≤θ1/θ2≤0.5, and a ratio of distance B1 in a bearing width direction from an end face of the bearing on a side of the one of the rows to an intersection of two lines of action defining the contact angles of the two rows, relative to a distance B2 in the bearing width direction from an end face of the bearing on a side of the other of the rows to the intersection falls within a range of 0.5≤B1/B2≤0.6.

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Номер записи: 36
29-01-2015 дата публикации

Toroidal and thrust bearing assembly

Номер: US20150030453A1
Автор: Christian Zang
Принадлежит: AKTIEBOLAGET SKF

The present invention relates to a bearing assembly for supporting a shaft having a toroidal roller bearing arrangement. The bearing assembly includes a first set of rolling elements formed of toroidal roller elements arranged in a first row and interposed between an inner ring providing a first inner raceway and an first outer ring providing a first outer raceway, and a thrust bearing arrangement having a second set of rolling elements arranged in a second row. The rolling elements are in contact with and arranged to cooperate with a second inner raceway and a second outer raceway for supporting axial loads and for restricting axial movement of the shaft in relation to the first outer ring. The present invention also relates to a method for manufacturing a bearing assembly for supporting a shaft.

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Номер записи: 37
02-02-2017 дата публикации

Roller of a support arrangement for a rotary milking platform

Номер: US20170030406A1
Автор: Otto Hellekant
Принадлежит: DELAVAL HOLDING AB

A roller of a support arrangement for a rotary milking platform, where the support arrangement includes a first rail member fixedly connected to the rotary platform, a second rail member stationarily arranged in a position below the platform, and a plurality of rollers arranged in a vertical space between the first rail member and the second rail member. Each roller includes a peripheral surface comprising a contact surface to be in contact with a contact portion of the first rail member and a contact portion of the second rail member. The peripheral surface of the roller includes two beveled surfaces arranged at opposite sides of the contact surface which are located at a smaller distance from a rotary axis of the roller than the contact surface.

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Номер записи: 38
02-02-2017 дата публикации

HYDROSTATIC BEARING FOR SUPPORTING A TELESCOPE

Номер: US20170030407A1
Автор: Hermansson Joakim
Принадлежит: AKTIEBOLAGET SKF

The present invention relates to a hydrostatic bearing providing a foot part supporting a load-carrying unit, a head part, and body part forming a lower chamber and an upper chamber. A lower member is supported by the load-carrying unit and arranged inside the lower chamber. An upper member is controllable by a pressurizing fluid and arranged inside the upper chamber. The lower member is controllably moveable along a central axis of the hydrostatic bearing between a retracted state. The lower member is distanced from the upper member, and an extended state. The lower member is also in contact with the upper member. The hydrostatic bearing acts both as a conventional slave bearing and a conventional master bearing. 1. A hydrostatic bearing for supporting a telescope comprising:a foot part supporting a load-carrying unit,a head part having a first surface adapted to receive an external load (W) and a second surface opposite to the first surface,a body part arranged in between the foot part and the head part, the body part forming a lower chamber and an upper chamber, the upper chamber being provided with an inlet for a pressurizing fluid,a lower member supportable by the load-carrying unit and arranged inside the lower chamber, the lower member providing a first end surface facing away from the load-carrying unit and a second end surface facing the load-carrying unit,an upper member controllable by the pressurizing fluid and arranged inside the upper chamber, the upper member providing a first end surface facing the second surface of the head part and a second end surface facing the first end surface of the lower member, whereinthe lower member is controllably moveable along a central axis (A) between a retracted state, where the first end surface of the lower member is distanced from the second end surface of the upper member, and an extended state, and whereinthe first end surface of the lower member is in contact with the second end surface of the upper member.2. ...

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Номер записи: 39
01-02-2018 дата публикации

BEARING ARRANGEMENT

Номер: US20180030964A1
Автор: ERIKSEN UFFE, Lemma Edom, Thomsen Kim, THORHAUGE MORTEN
Принадлежит:

A bearing arrangement of an electrical machine is provided that includes a drive shaft extending through a housing, the bearing arrangement including a front-end bearing arranged about a front end of the drive shaft, and a back-end bearing arranged about an opposite end of the drive shaft, wherein a bearing includes a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing includes an uneven distribution of bearing pads about the drive shaft. Furthermore, a wind turbine including such a bearing arrangement is also provided. 1. A bearing arrangement of an electrical machine that includes a drive shaft extending through a housing , the bearing arrangement comprising:a front-end bearing arranged about a front end of the drive shaft; anda back-end bearing arranged about an opposite end of the drive shaft;wherein the front-end bearing and the back-end bearing each comprise a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing of the front-end bearing and the back-end bearing comprises an uneven distribution of the plurality of bearing pads about the drive shaft.2. The bearing arrangement according to claim 1 , wherein the front-end bearing and the back-end bearing are virtually divided into an upper half and a lower half by a horizontal plane containing an axis of rotation of the drive shaft claim 1 , and wherein an uneven distribution of the plurality of bearing pads comprises different numbers of bearing pads in the upper half and the lower half.3. The bearing arrangement according to claim 1 , wherein the front-end bearing comprises the uneven distribution of the plurality of bearing pads about the drive shaft.4. The bearing arrangement according to claim 3 , wherein the front-end bearing comprises more bearing pads in the lower half of the front-end bearing than in the upper half of the front-end bearing.5. The bearing ...

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Номер записи: 40
31-01-2019 дата публикации

Bearing structure

Номер: US20190032711A1
Автор: Hidetoshi Taguchi, Masaya Honma, Osao Kido, Yoshitsugu Nishiyama
Принадлежит: Panasonic Intellectual Property Management Co Ltd

A first thrust bearing includes a first electromagnet and a first member. A second thrust bearing includes a second electromagnet and a second member. A magnetic force generated by the first electromagnet and the second electromagnet, and dynamic gas pressure generated by the first member and the second member due to rotation of a rotating shaft support an axial load of the rotating shaft.

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Номер записи: 41
31-01-2019 дата публикации

ROLLING BEARING, WIND TURBINE, AND METHOD FOR OPERATING A ROLLING BEARING

Номер: US20190032716A1
Автор: ELFERT Gunther, LÖFFLER Stefan, Luneburg Bernd, ROLLMANN Jörg
Принадлежит:

A rolling bearing with an inner ring and an outer ring which is rotatable about a rotation axis relative to the inner ring, or with an outer ring and an inner ring which is rotatable about a rotation axis relative to the outer ring, and with at least one sealing element arranged between the inner ring and the outer ring for sealing an interior of the rolling bearing which can be filled with a lubricant. The rolling bearing includes a conveying element for conveying the lubricant which is arranged on the one of the inner ring and outer ring so as to be rotatable about the rotation axis of the rolling bearing and in such a way that a play exists between the conveying element and the other of the inner ring and outer ring. 115.-. (canceled)16. A rolling bearing , comprising:an inner ring,an outer ring configured to rotate about a rotation axis relative to the inner ring or the inner ring configured to rotate about a rotation axis relative to the outer ring,a seal arranged between the inner ring and the outer ring, the seal configured to seal an interior of the rolling bearing, anda conveying element for conveying a lubricant, the conveying element arranged on one of the inner ring and the outer ring so as to be rotatable about the rotation axis of the rolling bearing and configured to provide play between the conveying element and the other of the inner ring and outer ring.17. The rolling bearing of claim 16 , wherein the rolling bearing has a scraper element for scraping lubricant from the conveying element.18. The rolling bearing of claim 17 , wherein the conveying element is movable relative to the scraper element.19. The rolling bearing of claim 16 , wherein the conveying element and/or the scraper element has a blade-like configuration.20. The rolling bearing of claim 16 , wherein the conveying element and/or of the scraper element defines a main extension plane that encloses an acute angle with an axial plane of the rolling bearing which includes a rotation axis ...

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Номер записи: 42
12-02-2015 дата публикации

Rolling guidance device

Номер: US20150043843A1
Автор: Ayako Miyajima, Hiroyuki Kimura, Marie Horikawa, Mitsumasa Wada, Shinya Saito, Takeshi Shimamura, Takuya Horie, Teruaki Ooka
Принадлежит: THK Co Ltd

A rolling guide device is capable of preventing a scooping piece formed on a circulation path module from being deformed along with use over time, and enhancing the durability of the scooping piece, thereby achieving smooth motion of a moving member relative to a track member. A moving member includes: a main body member having load rolling surfaces and return paths for rolling elements; direction change pipes having formed therein inner direction change paths and having inner peripheral guide surfaces of outer direction change paths, respectively; and lid members each being mounted on the main body member and having outer peripheral guide surfaces of the outer direction change paths. Each of the direction change pipes includes: a first half circulation segment and a second half circulation segment; and a scooping portion for guiding the rolling elements into each of the inner direction change paths.

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Номер записи: 43
06-02-2020 дата публикации

SUPERELASTIC BALLS FOR BALL BEARINGS AND METHOD OF MANUFACTURE

Номер: US20200040943A1
Автор: de Graffenried Christian
Принадлежит: Heraeus Deutschland GmbH & Co. KG

One aspect relates to a rolling element for a ball bearing wherein the rolling element has: (i) a Young modulus E in the range up to and including 100 GPa; and (ii) a yield strength Rpin the range up to and including 1800 MPa, or wherein the rolling element has at least an alloy of nickel (Ni) and titanium (Ti), wherein the weight ratio of Ni:Ti in the alloy is in the range of from 57:43 to 50:50. One aspect is a rolling bearing with: a. at least an outer ring; b. at least an inner ring, wherein a raceway is defined by the arrangement of the outer ring and the inner ring; and c. at least three rolling elements wherein the rolling elements are arranged in the raceway, wherein at least one rolling element comprises at least an alloy as mentioned above. 1. A ball bearing comprising:a raceway;a rolling element in the raceway, the rolling element comprising at least an alloy of Nickel and Titanium, wherein the weight ratio of Ni:Ti in the alloy is in the range of from 55:45 to 50:50;wherein the amount of alloy in the rolling element is from 85 wt. % to 100 wt. %, based on the total weight of the rolling element;wherein the ball bearing is configured within a medical handheld device, a pacemaker or a watch; andwherein the ball bearing comprises more than two points of contact with the rolling element2. The ball bearing of claim 1 , wherein the weight ratio of Ni:Ti in the alloy is 55:45.3. The ball bearing of claim 1 , wherein the raceway comprises and inner ring and an outer ring claim 1 , the inner ring having an inner diameter in the range of 4 to 10 mm.4. A ball bearing including a rolling element claim 1 , wherein the rolling element comprises:(i) a Young modulus E in the range up to and including 100 GPa;{'sub': '0.2', '(ii) yield strength Rpin the range up to and including 1800 MPa; and'}(iii) at least an alloy of Nickel and Titanium, wherein the weight ratio of Ni:Ti in the alloy is in the range of from 55:45 to 50:50wherein the ball bearing is configured within a ...

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Номер записи: 44
18-02-2021 дата публикации

Bearing Compression Strap

Номер: US20210048072A1
Автор: Crowther Ashley, Glinsky Chad Phillip, McNichols Colin
Принадлежит:

A tensioning arrangement for a bearing ring, which introduces a compressive force towards a rotational centre of the bearing ring, to prevent the bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement includes a strap and a tensioner. The strap has a connector at each end, and tensioner has an element for connecting to the connectors. The tensioner also has an element for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring. 1. An apparatus comprising:a wind turbine blade pitch bearing comprising a bearing ring;a strap comprising a first connector at a first end and a second connector at a second end, wherein the strap is arranged around the bearing ring and is in contact with the bearing ring; anda tensioner connected to the first connector and connected to the second connector, wherein the tensioner reduces a circumferential length of the strap in contact with the bearing ring and increases tension in the strap so as to apply a compressive force towards a rotational center of the bearing ring.2. The apparatus of claim 1 , wherein the first connector comprises a stud.3. The apparatus of claim 1 , wherein the second connector comprises a stud.4. The apparatus of claim 1 , wherein the first connector comprises a loop.5. The apparatus of claim 4 , wherein the loop is formed from the strap.6. The apparatus of claim 1 , wherein one of the first or second connectors comprises a direct connection to the tensioner.7. The apparatus of claim 1 , wherein the tensioner comprises a channel configured to receive the first or second end of the strap.8. The apparatus of claim 7 , wherein the channel comprises a slot.9. The apparatus of claim 8 , wherein one of the first or second connectors comprises a swaged stud claim 8 , and wherein the swaged stud is secured to the ...

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Номер записи: 45
18-02-2021 дата публикации

Sliding member

Номер: US20210048106A1
Автор: Hideyuki Inoue, Tadatsugu Imura, Yuichiro Tokunaga
Принадлежит: Eagle Industry Co Ltd

In a pair of sliding components having respective sliding faces (S) which slide relative to each other, at least one of the sliding faces (S) is provided with a plurality of dimples ( 10 ), and the dimples ( 10 ) include a concave part ( 15 ), and a peripheral edge part ( 11 ) which is located at the outer peripheral part of the concave part ( 15 ) and is shallower than the concave part ( 15 ). Accordingly, the performance of the plurality of dimples formed on the sliding face can be sufficiently exploited, thereby improving their lubrication performance and sealing performance.

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Номер записи: 46
18-02-2016 дата публикации

Slip-free rolling bearing

Номер: US20160047417A1
Автор: Jörg Binderszewsky, Jörg Loos, Wolfram Kruhöffer
Принадлежит: Schaeffler Technologies AG and Co KG

A slip-free rolling bearing ( 1 ) is provided, in the outer ring ( 3 ) of which there is formed an encircling groove ( 7 ). The rolling bodies ( 2 ) of this rolling bearing are surrounded, in the manner of an envelope circle, by a central ring ( 8 ) and are in physical contact therewith. To ensure permanent drive of the rolling bodies, the central ring is inserted into the groove so as to be radially free but is fixed rotationally fixedly in said groove, wherein a radial depth of the groove is greater than a thickness of the central ring. The rotational fixing of the central ring in the groove of the outer ring is effected by a spring element.

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Номер записи: 47
03-03-2022 дата публикации

ROLLING-ELEMENT BEARING, NOTABLY LARGE-DIAMETER ROLLING-ELEMENT BEARING

Номер: US20220065291A1
Автор: Capoldi Bruno
Принадлежит:

A rolling-element bearing includes first and second rings having axial and radial raceways and a row of first radial rolling elements between the axial raceways. At least one row of axial rolling elements is located between a first radial raceway of the first ring and a first radial raceway of the second ring and radially located between an axial guiding face of the first ring and an axial guiding face of the second ring. The axial rolling elements are mounted in the pockets of a cage having a plurality of cage segments, and at least one second radial rolling element is circumferentially interposed between two adjacent cage segments of the plurality of cage segments and radially interposed between the axial guiding faces.

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Номер записи: 48
03-03-2022 дата публикации

SLEWING BEARING FOR FOOD PROCESSING EQUIPMENT

Номер: US20220065299A1
Автор: Chaplin Raymond Lee, López Joel Eduardo Quintanilla, Messner Reinhard, Rodriguez Roberto Ricardo, VanLangevelde David J
Принадлежит:

A slewing bearing includes an inner annular body formed of unhardened stainless steel and coupleable with a fixed member and having an inner race with an unhardened race surface. An outer annular body is disposed about the inner body and is formed of unhardened stainless steel, is coupleable with a rotatable member, and has an outer bearing race with an unhardened race surface and a plurality of gear teeth engageable by a drive pinion to angularly displace the outer body. Rolling elements are disposed between and rotatably couple the inner and outer annular bodies. An annular seal is coupled with the outer annular body and has two opposing axial ends, an axial thickness defined between the ends, a sealing lip engageable with the inner body and an outside diameter and is sized such that the ratio of the outside diameter to the axial thickness is greater than fifty. 1. A slewing bearing for angularly displacing a rotatable member with respect to a fixed member about a central axis , the slewing bearing comprising:an inner annular body formed of unhardened stainless steel and coupleable with the fixed member, the inner annular body having a centerline coaxial with the centerline and an inner bearing race with an unhardened race surface;an outer annular body disposed about the inner body and formed of unhardened stainless steel, coupleable with the rotatable member, and having an outer bearing race with an unhardened race surface spaced radially outwardly from the inner race and a plurality of gear teeth spaced about the centerline and configured to be engaged by a drive pinion so to angularly displace the outer body about the central axis;a plurality of rolling elements disposed between the inner and outer annular bodies so as to be rollable upon the inner and outer races to rotatably couple the inner and outer bodies; andan annular seal coupled with the outer annular body and having an outside diameter, opposing first and second axial ends, an axial thickness being ...

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Номер записи: 49
08-05-2014 дата публикации

Configuration for a roller of a roller bearing

Номер: US20140126850A1
Автор: Baozhu Liang, Michael Reugels
Принадлежит: SKF AB

A tapered roller for a tapered roller bearing, the tapered roller bearing having a raceway and a flange, and the tapered roller having a rolling surface configured to roll on the raceway and an end surface at the end of the rolling surface configured to face the flange. The end surface includes an abutment surface having a curvature and a radially outer end and a radially inner end and is configured to contact the flange. The curvature increases monotonically from a starting point on the abutment surface to the radially inner end of the abutment surface.

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Номер записи: 50
25-02-2016 дата публикации

Axial-radial slide bearing having polymer slide elements and corresponding slide element

Номер: US20160053809A1
Автор: Ralf Selzer
Принадлежит: IGUS GMBH

This invention relates to an axial-radial sliding bearing ( 10 ) with polymer sliding elements ( 20 ). The sliding bearing comprises a first bearing race ( 11 ) and a second bearing race ( 12 ), which are rotatable oppositely to each other about a bearing shaft (A), wherein the second bearing race defines a substantially U-shaped cross section for receiving the first bearing race at least in certain regions. The sliding elements ( 20 ) are made from tribopolymer and are arranged between the first and the second bearing races for uncoupling the bearing races axially and radially. The sliding elements each have a substantially L-shaped cross section comprising an axial region ( 21 ) having axial sliding surfaces and a radial region ( 22 ) having radial sliding surfaces. According to the invention, the radial region ( 22 ) of the sliding elements ( 20 ) includes at least one hinge connection ( 23 ), which connects two segments ( 24 ) of the radial region in a flexible manner and so as to be movable oppositely to each other. Thus the sliding elements ( 20 ) can be adapted to the respective diameter (D) of the axial-radial sliding bearing ( 10 ). The invention also relates to a sliding element ( 20 ) including at least one such hinge connection ( 23 ) in the radial region ( 22 ) of the sliding element ( 20 ).

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Номер записи: 51
25-02-2016 дата публикации

Slewing bearing, in particular for a vehicle

Номер: US20160053811A1
Автор: Herve Dondaine, Juliette Delaby, MICHEL Nicolas
Принадлежит: SKF AB

A slewing bearing, in particular for a vehicle, comprises an inner ring, an outer ring, at least one row of rolling elements disposed between the inner and outer rings, and a sealing feature that define between the rings a closed annular space within which the rolling elements are disposed. The bearing also comprises at least one seal that is fixed to the outer ring and comprises at least one sealing lip that is oriented towards the outside of the bearing, and at least one deflector that is fixed to the outer ring and comprises a deflecting part that is at least partially offset axially towards the outside with respect to the sealing lip of the seal.

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Номер записи: 52
22-02-2018 дата публикации

Wind turbine main shaft bearing and method of upgrading a main shaft bearing

Номер: US20180051678A1
Автор: Anthony Fierro, Douglas R. LUCAS, Kathleen Alexandridis, Laurentiu C. Ionescu, Michael J. Laughbaum, Mihail E. Raducan, Richard K. Brooks
Принадлежит: Timken Co

A wind turbine bearing system for a rotating main shaft of a wind turbine includes a double-row tapered roller bearing assembly ( 64 ) having a one-piece inner race element. The inner race element defines first and second inner raceways. The roller bearing assembly further includes first and second sets of tapered rollers seated within the corresponding first and second inner raceways. The bearing assembly also includes a two-piece outer race element, each piece of the two-piece outer race element defining a respective outer raceway. Each piece of the two-piece outer race element has a cylindrical outer diameter defining an outer contact surface. The system further includes a pillow block housing assembly that defines a cylindrical inner diameter ( 46 ) substantially matched to the outer contact surfaces ( 144,148 ) of the pieces of the two-piece outer race element to define an interface between the pillow block housing assembly and the bearing assembly.

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Номер записи: 53
23-02-2017 дата публикации

Roller bearing comprising oblique contact rollers

Номер: US20170051786A1
Автор: Bouron Cyril, Dondaine Herve
Принадлежит: AKTIEBOLAGET SKF

The roller bearing provides an inner ring, an outer ring, and at least one row of oblique contact rollers arranged between bearing races, of the rings. Each of the rings provides a guide face, which is in contact with end faces, of the rollers. A point of intersection of the axis of rotation of each roller of the row with each guide face, of the rings is situated at an equal distance from inner, and outer, edges of the guide face. 1. A roller bearing comprising:an inner ring,an outer ring, andat least one row of oblique contact rollers arranged between bearing races of the rings, each of the rings having a guide face in contact with end faces of the rollers, whereina point of intersection of the axis of rotation of each roller of the row with each guide face of the rings is situated at an equal distance from inner and outer edges of the guide face.2. The bearing according to claim 1 , wherein the area of contact of the end face of each roller with the guide face of the inner ring is provided in the form of a disc that is centred on the axis of rotation of the roller.3. The bearing according to claim 1 , wherein the area of contact of the end face of each roller with the guide face of the inner ring is in the form of a hoop which is centred on the axis of rotation of the roller.4. The bearing according to claim 1 , wherein the end faces of the rollers are flat.5. The bearing according to claim 1 , wherein the diameter of the end faces of the rollers is smaller than the length of the guide faces of the inner and outer rings.6. The bearing according to claim 1 , wherein the length of the guide faces is smaller than the length of the bearing races of the inner and outer rings.7. The bearing according to claim 1 , wherein the ratio between the gap provided between the guide faces of the rings and the end faces of the rollers claim 1 , and the length of the rollers is between 5% and 6%.8. The bearing according to claim 1 , wherein the guide faces are formed directly on ...

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Номер записи: 54
04-03-2021 дата публикации

HANDPIECE

Номер: US20210060753A1
Автор: Kim Hyung Woo
Принадлежит:

Provided is a handpiece in which a predetermined section of a rotational power transmission shaft includes a plurality of flexible rods. The single rotational power transmission shaft is able to change the direction of the rotation center axis of a rotational power source in order to overcome problems, such as rotational power loss, noise, fine vibration, reduced durability, or an increase in volume, caused by a complicated gear connecting structure of a rotational power transmission shaft for changing the direction of the rotation center axis of the rotational power transmission shaft of a related-art rotational power source. 1. A handpiece , with a rotational power source being provided on one side thereof and a tool being coupled to the other side thereof , the handpiece comprising:a body having a handle;a head to which the tool is coupled; anda rotational power transmission shaft transmitting rotational power from the rotational power source, provided on a portion of the body, to a portion of the head,wherein a predetermined section of the rotational power transmission shaft comprises a spiral threaded portion having a helical shape, such that the rotational power transmission shaft is bendable at a portion thereof, in which the spiral threaded portion is provided, to be directed toward the portion of the head, and the rotational power transmission shaft extends toward the portion of the head deviating from a rotation center axis of the rotational power source through the spiral threaded portion to transmit the rotational power to the portion of the head.2. The handpiece of claim 1 , wherein the spiral threaded portion has a spring structure comprised of a plurality of spiral rods respectively having a helical shape.3. The handpiece of claim 1 , further comprising one or more bearings provided in front of claim 1 , behind claim 1 , or in front of and behind the spiral threaded portion having the helical shape.4. The handpiece of claim 1 , further comprising ...

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Номер записи: 55
02-03-2017 дата публикации

High Capacity Bearing

Номер: US20170058953A1
Автор: Cornelius Charles C.
Принадлежит:

A high load capacity bearing that includes a cylindrical outer sleeve that fits around a separable cylindrical outer race assembly. The outer race assembly includes a set of non-helical grooves formed on its inside surface that mesh and engage teeth formed on the outside surface of a plurality of rotating rollers that are longitudinally and axially aligned inside the outer race assembly. The rollers are longitudinally aligned and evenly space apart and rotated as a unit inside the outer race assembly. Located inside the rollers is an inner race with non-helical grooves formed on its outside surface that mesh and engage the teeth on the rollers. The inner race includes a smooth inside bore that fits around the support surface on a shaft. During use, the inner race is becomes fixed on a support surface on a shaft and the outer sleeve and outer race assembly are mounted on a part. 1. A high load capacity bearing configured to be mounted on a load supporting section of a shaft with an abutment edge adjacent to said load support surface , said shaft includes external threads and a nut attached thereto that when sufficiently tightened , comprising:a. a cylindrical outer race assembly includes a plurality of inward facing, non-helical grooves;b. a rotating roller assembly coaxially aligned and located inside said outer race assembly, said roller assembly includes a plurality of rollers with a plurality of non-helical teeth;c. a cylindrical outer sleeve disposed around said outer race assembly; andd. means for transferring a load force between a load support section of said shaft and said rollers including a cylindrical inner race with a center bore that slides over said shaft, said inner race includes a plurality of non-helical grooves configured to mesh with said teeth on said rollers, said inner race fixed to said shaft by said nut.2. A high load capacity and easy to assemble bearing that is mounted on a load supporting section of a shaft , comprising:a. a cylindrical ...

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Номер записи: 56
04-03-2021 дата публикации

Hub Assembly for a Rotor of a Wind Turbine

Номер: US20210062783A1
Автор: BESCOS GRILLO Javier, Bosch-Collado Josep, Olesen John T., Skierczynski Przemyslaw
Принадлежит:

Hub assemblies () for a rotor () of a wind turbine () are disclosed. The hub assembly comprises a hub () comprising openings () to connect rotor blades (), a pitch bearing (), a pitch carrier () positioned between the hub () and the pitch bearing () and configured to support a pitch system () for adjusting a blade pitch, wherein the pitch carrier () comprises a strip plate () arranged between two opposite regions of the perimeter of the opening (), and a mounting structure for assembling the strip plate () with the hub (). Also disclosed are methods () for manufacturing a hub assembly () of a wind turbine (). 115-. (canceled)16. A hub assembly or a rotor of a wind turbine , the hub assembly comprising:a hub comprising openings to connect rotor blades;a pitch bearing;a pitch carrier positioned between the hub and the pitch bearing and configured to support a pitch system for adjusting a blade pitch, wherein the pitch carrier comprises a strip plate arranged between two opposite regions of the perimeter of the opening; anda mounting structure for assembling the strip plate with the hub.17. The hub assembly according to claim 16 , wherein the mounting structure comprises one or more supporting rims formed integrally with the hub and extending inwardly from the perimeter of the opening claim 16 , and the strip plate is attached to the supporting rims.18. The hub assembly according to claim 17 , wherein the pitch carrier is positioned between the supporting rims and the pitch bearing.19. The hub assembly according to claim 17 , wherein the hub comprises mounting flanges about the openings claim 17 , the mounting flanges extending outwardly from the rest of the hub towards the pitch bearing and the pitch bearing is supported by the mounting flanges.20. The hub assembly according to claim 17 , wherein the mounting structure comprises two supporting rims disposed opposite to each other.21. The hub assembly according to claim 17 , wherein the strip plate is fastened to the ...

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Номер записи: 57
10-03-2016 дата публикации

Rolling body guide element, particularly for a large tapered roller bearing

Номер: US20160069389A1
Автор: Christian Seubert, Christoph Meder, Florian Vogelgesang, Hermann Geyer, Johannes Monius, Lorenz Bell, Manfred Jansen, Manuel Rettinger, Roland Eichler, Sabine Plischki
Принадлежит: Schaeffler Technologies AG and Co KG

A rolling body guide element for a roller bearing, having an inner web ( 1 ) that is arranged between two adjacent rolling bodies in the installed state and forms a first and second connecting part wall ( 1 a, 1 b ) facing a respective rolling body at the radial plane of the rolling body axes, a run-on structure ( 2 ) formed in the region of the respective connecting part wall to provide at least one roller run-on zone supporting the respective rolling body in the circumferential direction, and a radial guide structure ( 3 ) for radial guidance of the inner connecting part. According to the invention, the rolling body guide element includes first and second side edge pieces ( 4, 5 ) which, on sides of the rolling body guide element facing away from one another, rise up above the end faces of the adjacent rolling body and overlap these end faces.

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Номер записи: 58
27-02-2020 дата публикации

Tapered roller bearing and wind turbine

Номер: US20200063799A1
Автор: Bernfried PILK, Simone Angelo SANTORO
Принадлежит: Thyssenkrupp AG, THYSSENKRUPP ROTHE ERDE GMBH

A tapered roller bearing may comprise an inner ring, an outer ring, and two rows of tapered rollers that are arranged in an O-arrangement between the inner ring and the outer ring. The inner ring may extend in an axial direction over a greater length than the outer ring, and a gap between the inner ring and the outer ring on at least one side of the tapered roller bearing may be sealed by a sealing assembly. The sealing assembly may comprise a main seal that is attached to the inner ring in a rotationally fixed manner, as well as a seal race ring that is attached to the outer ring in a rotationally fixed manner. The seal race ring may form a seal raceway for the main seal.

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Номер записи: 59
19-03-2015 дата публикации

Cage segment of a tapered roller bearing, and tapered roller bearing

Номер: US20150078699A1
Автор: Baozhu Liang, Matthias Gessendorfer, Ralf Wahler, Winfried Oestreicher
Принадлежит: SKF AB

A tapered roller bearing includes cage segments each having a pocket that retains one conical rolling element. The pocket is formed by two mutually-opposing circumferential bridges, which each extend between first and second circumferential ends of the cage segment, and at least two mutually-opposing connecting bridges, which connect the two circumferential bridges. The circumferential and connecting bridges have pocket sides, which delimit the pocket. The connecting bridges disposed in the region of the first and second circumferential ends each have a concavely-shaped first guide surface on their pocket and circumferential sides that partially enclose one rolling element. When a rolling element is disposed between the first circumferential end of one cage segment and the second circumferential end of the adjacent cage segment, the circumferential bridges of the two adjacent cage segments do not touch during operation.

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Номер записи: 60
07-03-2019 дата публикации

APPARATUS AND METHOD FOR PRELOADING BEARING ASSEMBLIES

Номер: US20190072129A1
Автор: Fang Min, LU Jianguo, ZHOU Xianghua
Принадлежит:

An apparatus () for preloading a bearing assembly () on a shaft () includes a first annular threaded member () positioned about the shaft () and a second annular threaded member () positioned about the shaft (). The first and second threaded members () have intermeshing threads such that rotation of the second threaded member () causes axial translation of the first threaded member () to apply a first axial force to the bearing assembly () to preload the bearing assembly (). An actuator is operable to rotate the second threaded member () relative to the first threaded member () to apply the first axial force to the bearing assembly (). 1. An apparatus for preloading a bearing assembly on a shaft , the apparatus comprising:a first annular threaded member positioned about the shaft;a second annular threaded member positioned about the shaft;the first and second threaded members having intermeshing threads such that rotation of the second threaded member causes axial translation of the first threaded member to apply a first axial force to the bearing assembly to preload the bearing assembly; andan actuator operable to rotate the second threaded member relative to the first threaded member to apply the first axial force to the bearing assembly.2. The apparatus of claim 1 , wherein the actuator is a pawl and ratchet arrangement operable to rotate the second threaded member relative to the first threaded member to apply the first axial force to the bearing assembly.3. The apparatus of claim 2 , wherein the pawl and ratchet arrangement is hydraulically actuated.4. The apparatus of claim 2 , wherein the pawl and ratchet arrangement is one of a plurality of pawl and ratchet arrangements claim 2 , wherein the second threaded member is rotatably driveable via the plurality of pawl and ratchet arrangements.5. The apparatus of claim 2 , further comprising a drivetrain including a first gear and a last gear claim 2 , wherein the pawl and ratchet arrangement drives the first gear ...

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Номер записи: 61
07-03-2019 дата публикации

BEARING PROTECTOR

Номер: US20190072184A1
Автор: Banks Joshua William
Принадлежит: AES ENGINEERING LTD.

A bearing protector includes a static component fixed relative to a housing, in which a stationary sealing face profile is retained and a rotational component for fixing relative to a shaft with the static and rotational components held axially relative to each other. The rotational component has an annular sealing face profile energized by way of one or more magnetic elements retained within the static component to generate a positive sealing face contact between the stationary sealing face and rotational sealing face profiles. The magnets elements are held within recesses in the static component and extend radially inwards of the recesses. 1. An apparatus , comprising a static component fixed relative to a housing , wherein a stationary sealing face profile is retained , and a rotational component for fixing relative to a shaft with the static component and the rotational component held axially relative to one another , the rotational component having an annular sealing face profile energized via a magnetic element retained within the static component for generating a positive sealing face contact between the stationary sealing face profile and a rotational sealing face profiles.2. The apparatus according to claim 1 , wherein said magnetic element is retained within the housing of the static component via holes allowing said magnetic element to interact with the rotational component generating positive seal face loading.3. The apparatus according to claim 2 , wherein the holes are partially cylindrical recessed for accommodating a cylindrical magnetic element so that said magnetic element exits radially inwards of the holes for allowing assembly of the rotational component within the housing prior to installation of the magnetic element.4. The apparatus according to claim 1 , wherein a profile of the rotational component profile provides for magnetic element interaction to be promoted and a magnetic force gap is set for maintaining a predetermined seal face ...

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Номер записи: 62
18-03-2021 дата публикации

Rolling bearing, particularly hybrid rolling bearing for refrigerant compressor

Номер: US20210079953A1
Автор: Guillermo Enrique Morales Espejel, Hans Wallin, Rudolf Hauleitner
Принадлежит: SKF AB

A rolling bearing having an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The rolling bearing is media-lubricated or oil-free lubricated. The lubricant forms an elasto-hydrodynamic lubricant film between the rolling elements and the raceways. At first use of the rolling bearing, at least one surface of the rolling bearing is coated with a protective fluid, preferably an oil-based preservative fluid. Also, a refrigerant compressor having such a rolling bearing.

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Номер записи: 63
23-03-2017 дата публикации

Seal member, and rolling bearing for windmill main shaft

Номер: US20170082145A1
Автор: Eisyou Harada, Tomonori Kuroki
Принадлежит: JTEKT Corp

A seal member is disposed between an inside member and an outside member which rotate relative to each other. The seal member includes: a ring-shaped sliding contact portion which is made of a non-foam rubber and which includes a seal lip slidably contacting one member of the inside member and the outside member; and a body portion which is made of a foam rubber, which includes a ring-shaped joining portion joined to the sliding contact portion, and which contacts the other member of the inside member and the outside member in a radial direction and is fixed to the other member.

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Номер записи: 64
23-03-2017 дата публикации

Bearing in which one ring is equipped with strips for retaining a coded ribbon

Номер: US20170082148A1
Автор: Nicolas Michel
Принадлежит: AKTIEBOLAGET SKF

A bearing providing a first ring and a second ring, capable of rotating concentrically relative to one another, equipped with at least one incorporated device for detecting the movement of the rings relative to one another is provided. The detection device includes at least a coder element mounted on the first ring and at least a sensor element mounted on the second ring, facing the coder element, the coder element providing at least one linear ribbon arranged on a cylindrical surface of the first ring. The first ring of the bearing is equipped with at least one retaining strip that extends over the ribbon. 1. A bearing comprising:a first ring, and a second ring, capable of rotating concentrically relative to one another, equipped with at least one detection device for detecting the movement of the rings relative to one another, whereinthe detection device provides at least a coder element mounted on the first ring and at least a sensor element mounted on the second ring, facing the coder element, whereinthe coder element includes at least one ribbon arranged on a cylindrical surface of the first ring, and whereinthe first ring is equipped with at least one retaining strip that extends over the ribbon.2. The bearing according to claim 1 , wherein the retaining strip comprises an axial portion extending axially over the ribbon and a radial end portion facing a radial surface of the first ring.3. The bearing according to claim 2 , wherein the end portion is fastened to the first ring by at least one axial screw.4. The bearing according to claim 2 , wherein the retaining strip comprises a second radial end portion facing a second radial surface of the first ring claim 2 , so that the strip takes the form of a clamp straddling an annular part of the first ring.5. The bearing according to claim 4 , wherein the second radial end portion is equipped with a terminal portion engaged in an annular groove in the first ring.6. The bearing according to claim 1 , wherein the ...

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Номер записи: 65
31-03-2022 дата публикации

Rotary Bearing with a Damper and a Motor and a Rotary Atomizer with Such Bearing, and Use Thereof

Номер: US20220099141A1
Автор: HANSEN Asger, LARSEN Jon Steffen, NIELSEN Jakob
Принадлежит: GEA Process Engineering A/S

A rotary bearing with a damper having an inner bearing element configured for rotation around an axis of rotation, an outer bearing element coaxial with the inner bearing element, an inner damper element with an outer surface surrounding the outer bearing element, an outer damper element with an inner surface surrounding the inner damper element, at least one sealing element provided between the outer surface and the inner surface, the sealing element confining a damper space having a circumferential film space defined by a clearance between the outer surface and the inner surface. The damper space contains fluid and is a closed, isolated damper space. 121-. (canceled)22. A rotary bearing with a damper and with an axis of rotation , comprising: an inner bearing element; an outer bearing element coaxial with the inner bearing element , the inner bearing element configured for rotation around the axis of rotation relative to the outer bearing element; an inner damper element with an outer surface surrounding the outer bearing element; an outer damper element with an inner surface surrounding the inner damper element; at least one sealing element provided between the outer surface of the inner damper element and the inner surface of the outer damper element , said sealing element confining a damper space comprising at least a film space provided by a clearance between said outer surface and said inner surface , the damper space being at least partially filled with fluid , wherein in an operating condition said damper space is a closed , isolated damper space , wherein the damper space is provided with a closable filling port.23. A rotary bearing with a damper claim 22 , according to claim 22 , wherein the closable filling port is closed by a plug.24. A rotary bearing with a damper claim 22 , according to claim 22 , wherein two sealing elements confining between them said damper space.25. A rotary bearing with a damper according to claim 22 , wherein said film space is ...

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Номер записи: 66
29-03-2018 дата публикации

BEARING SYSTEM FOR TURRET ON A VESSEL

Номер: US20180086422A1
Автор: Boe Ketil, Seim Lars, Skauge Stig
Принадлежит: Framo Engineering AS

A bearing system including a wheel assembly transmitting load to a damping assembly, wherein the wheel assembly is configured to rotate angularly relative to the damping assembly. 1. A bearing system configured to support rotation of a turret carried by a vessel , the rotating of the turret relative to said vessel being about a substantially vertical turret axis and the turret having a bearing surface , the bearing comprising: a roller in contact with said turret bearing surface;', 'a linkage system configured to transmit force from said bearing surface toward said roller into a supporting structure of said vessel, the linkage system comprising one or more linkage elements configured to allow freedom of movement of linkage elements in directions parallel to the turret bearing surface in a location contacted by said roller; and', 'a mounting system configured to securely mount said bearing assembly to said supporting structure., 'a plurality of bearing assemblies, each of which comprising2. The bearing system of claim 1 , wherein said linkage system further comprises a compression spring system configured to allow movement of said roller in a direction perpendicular to the bearing surface.3. The bearing system of claim 2 , wherein said linkage system is configured such that when the spring system is not compressed to a maximum position claim 2 , force from the bearing surface towards the roller perpendicular to the bearing surface pass through the spring system into a spring end piece claim 2 , and when the spring system is compressed to the maximum position claim 2 , further force from the bearing surface towards the roller perpendicular to the bearing surface passes directly through the linkage system to said supporting structure without increasing a load on the spring end piece.4. The bearing system of claim 1 , wherein said bearing surface is an outer annular rail secured about an outer circumference of said turret and said bearing assemblies are radial bearing ...

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Номер записи: 67
21-03-2019 дата публикации

Bearing unit

Номер: US20190085898A1
Автор: Christian Zang, Werner Horn
Принадлежит: SKF AB

A large size bearing unit provides a rolling bearing having a first ring element and a second ring element and a plurality of rolling elements interposed radially in-between the first and the second ring elements. The first and the second ring elements rotate relative each other in relation to a rotational axle. The first ring element provides at least two separate ring elements located adjacently in a row along the rotational axle. At least one ring-formed support element is at least partly embedding the at least two separate ring elements and includes a seat surface onto which the at least two separate ring elements are located. The at least one ring-formed support element has two axially opposite surfaces extending radially from the seat surface to partly enclose the at least two separate ring elements. At least one of the axially opposite side surfaces is located on a separate ring-formed element.

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Номер записи: 68
21-03-2019 дата публикации

Lubrication system and a method for lubricating a transmission system component

Номер: US20190085968A1
Автор: Efim Vinnitsky, Erez Admoni
Принадлежит: Applied Materials Israel Ltd

A method and a lubrication system for lubricating a transmission system component. The lubrication system may include a lubrication system reservoir for storing a lubrication liquid; and a distribution system. The distribution system may be configured to refill, with the lubrication liquid, a transmission system reservoir that is configured to lubricate the transmission system component. The refill occurs while the transmission system component and the lubrication system are positioned within a vacuum chamber.

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Номер записи: 69
19-03-2020 дата публикации

STRUCTURAL SUSPENSION OF RADIAL TURRET BEARINGS

Номер: US20200086953A1
Автор: ASKESTAD Sigmund
Принадлежит:

A structural suspension of radial turret bearing wheels in a turret bearing comprises a rail support structure mounted on a turret bearing support structure, a circular rail mounted to the rail support structure, and a plurality of radial wheels running on the mainly vertical inner side of the rail. 2. The suspension according to wherein the at least two lockable positions are provided by the lower shaft support comprising a shape that mates with a similar shape on a lower end of the shaft in at least two angular positions.3. The suspension according to wherein the shape on the lower shaft support is a hexagon or an octagon.4. The suspension according to wherein the shape on the lower shaft support is a cogwheel with at least two teeth.5. The suspension according to claim 1 , wherein the rotational axis of the radial wheel is tilting an angle A relative to an unloaded condition of the axis claim 1 , when the vertical flexible shaft is under maximum load claim 1 , and wherein an angle E between the vertical inner side of the rail and a tangent of the convex curvature across the planar contacting surface is less than zero at a top for conditions without load and larger than A at a bottom for conditions with maximum load.6. The suspension according to wherein a pipe is mounted between the lower shaft support and the upper shaft support to cover the vertical flexible shaft.7. The suspension according to wherein the radial wheel is supported by a bushing claim 1 , which is able to slide on the vertical flexible shaft the same distance as a maximum vertical movement of a turret relative to the circular rail under maximum load and a vertical movement imposed by angular deflection A of the radial wheel.8. The suspension according to wherein a flange is mounted on an upper rim of the radial wheel.9. The suspension according to wherein the radial wheel is vertically locked to the circular rail by having a lower flange mounted on a top rim of the radial wheel.10. The ...

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Номер записи: 70
12-05-2022 дата публикации

PLAIN BEARING ARRANGEMENT

Номер: US20220145862A1
Автор: BERGMANN PHILIPP, HOELZL Johannes, HOLZINGER Martin, WALDL Albert
Принадлежит: Miba Gleitlager Austria GmbH

The invention relates to a sliding bearing () comprising: 29202226132429242013. The sliding bearing () according to claim 1 , wherein the individual sliding bearing pads () each have a fastening profile () opposite the bearing surface () claim 1 , and wherein the inner ring element () has at least one receiving profile () on its radial outside () claim 1 , which receiving profile () serves for a positive locking connection between the sliding bearing pads () and the inner ring element ().39212013212224. The sliding bearing () according to claim 2 , wherein a fastening device () is formed claim 2 , which is arranged between the sliding bearing pad () and the inner ring element () claim 2 , wherein the fastening device () is coupled to the fastening profile () and the receiving profile ().492123222524. The sliding bearing () according to claim 3 , wherein the fastening device () has a first profile element () claim 3 , which is coupled to the fastening profile () claim 3 , and has a second profile element () on the opposite side claim 3 , which is coupled to the receiving profile ().5922232425. The sliding bearing () according to claim 3 , wherein the fastening profile () and the first profile element () are formed as a dovetail connection and/or that the receiving profile () and the second profile element () are formed as a dovetail connection.692135363738353136313539. The sliding bearing () according to claim 3 , wherein the fastening device () comprises a main body () and at least a first clamping wedge () claim 3 , which has a wedge surface () claim 3 , which cooperates with a first counter wedge surface () formed in the main body () and tapering in the axial direction () claim 3 , wherein the first clamping wedge () can be displaced in the axial direction () relative to the main body () by means of a first positioning means () claim 3 , in particular a thread element.792140414235313842403143. The sliding bearing () according to claim 6 , wherein the fastening ...

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Номер записи: 71
12-05-2022 дата публикации

SLIDING COMPONENT

Номер: US20220145931A1
Автор: Imura Tadatsugu
Принадлежит:

An annular sliding component disposed at a relative rotation point of a rotating machine, includes a plurality of positive pressure generation grooves arranged side by side in a circumferential direction on a sliding surface of the sliding component. The positive pressure generation grooves are configured for generating positive pressure by a sealing target fluid on the sealing target fluid side being introduced during the relative rotation of the sliding component and a sliding component. The positive pressure generation grooves have a plurality of leading edge portions at leading edges on a downstream side in a direction of the relative rotation. The plurality of leading edge portions are arranged side by side in the circumferential direction. At least part of the plurality of leading edge portions is disposed at different radial positions. 1: A sliding component formed in an annular shape and disposed at a relative rotation point of a rotating machine , comprising a plurality of first positive pressure generation grooves arranged side by side in a circumferential direction on a sliding surface of the sliding component ,the plurality of first positive pressure generation grooves being configured for generating positive pressure by a sealing target fluid on a sealing target fluid side which is introduced during the relative rotation of the sliding component,the first positive pressure generation grooves having a plurality of leading edge portions at leading edges on a downstream side in a direction of the relative rotation,the plurality of leading edge portions being arranged side by side in the circumferential direction,at least part of the plurality of leading edge portions being disposed at different radial positions.2: The sliding component according to claim 1 , wherein the plurality of leading edge portions arranged side by side are regularly disposed along the circumferential direction.3: The sliding component according to claim 1 , wherein the plurality of ...

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Номер записи: 72
06-04-2017 дата публикации

Sensor assembly for a wind turbine bearing and related system and method

Номер: US20170096984A1
Автор: John Robert Inman, Michael J. Kacmarcik
Принадлежит: General Electric Co

A bearing for a wind turbine may generally include an outer race, an inner race and a plurality of roller elements positioned radially between the inner and outer races, with the roller elements including a first roller element and a second roller element. The bearing may also include a sensor assembly having a load sensor positioned between the first and second roller elements. When the sensor assembly is compressed between the first and second roller elements during operation of the wind turbine, the load sensor is configured to detect a compressive load transferred through the sensor assembly.

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Номер записи: 73
16-04-2015 дата публикации

Conical roller bearing

Номер: US20150104126A1
Автор: Motoshi Kawamura, Ryosuke CHUDO, Yoshihito Nakashima
Принадлежит: JTEKT Corp

The conical roller bearing includes an inner ring which includes an annular groove between an inner-ring-side raceway surface and a small-diameter-side end portion thereof, and a cage which includes an erected portion extending from a first annular portion of the cage towards the annular groove. The erected portion includes a first inclined portion and a second inclined portion. The first inclined portion is inclined towards conical rollers disposed in pockets of the cage while extending from the first annular portion towards the annular groove. The second inclined portion is inclined towards the small-diameter-side end portion while extending from the first inclined portion towards the annular groove. The second inclined portion is configured to be brought into engagement with the annular groove in an axial direction of the inner ring.

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Номер записи: 74
12-05-2022 дата публикации

SOLAR TRACKER BUSHING ASSEMBLY

Номер: US20220149773A1
Автор: REZNAR Jason, Teller William
Принадлежит:

An improved bushing assembly for a solar tracker is provided. The bushing assembly includes a bushing that is seated within a ring-shaped bracket. The bushing includes an annular ridge that is disposed within an annular channel in the bracket. Alternatively, the bracket includes an annular ridge that is disposed within an annular channel in the bushing. In each configuration, the bushing is retained in position during installation of the bracket. The bushing defines an internal passage for a solar tracker crossbar and provides complete rotational freedom for the crossbar about its lengthwise axis and limited rotational freedom for the crossbar about the remaining orthogonal axes. Additional features including side skirts for minimizing the entry of debris between the bushing and the bracket, a resilient latch for securing bracket sections together, and vertical openings in the bracket sections to allow debris to escape. 1. A bushing assembly comprising:a bracket including an internal circumferential surface and an annular channel that is recessed relative to the internal circumferential surface; anda bushing including a first bushing section and a second bushing section, the first and second bushing sections each including an annular ridge extending about an outer radial surface thereof, the outer radial surface of the first and second bushing sections being in engagement with the internal circumferential surface of the bracket, and the annular ridge being disposed within the annular channel of the bracket, such that the bushing is rotatable within the bracket.2. The bushing assembly of wherein the annular channel is positioned midway between a first side surface of the bracket and a second side surface of the bracket.3. The bushing assembly of wherein the annular ridge defines an outer diameter that is greater than an inner diameter defined by the internal circumferential surface of the bracket.4. The bushing assembly of wherein the bracket includes an upper ...

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Номер записи: 75
08-04-2021 дата публикации

Self-aligning roller bearing

Номер: US20210102576A1
Автор: Alessio Nebbia Colomba, Marcus LOOF
Принадлежит: SKF AB

The present disclosure relates to a self-aligning roller bearing comprising an inner bearing ring, an outer bearing ring and at least one row of roller elements interposed in-between the inner and the outer bearing ring. The roller bearing further comprises a cage comprising a ring-formed first cage portion and a plurality of distributed cage pocket bars protruding axially outwardly from an axial side face of the first cage portion, delimiting a plurality of cage pockets for the roller elements. The side face comprises one or more protrusions adapted to respectively abut a portion of an axial end face of a respective roller element, which portion comprises at least a radial centre of the roller element.

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Номер записи: 76
20-04-2017 дата публикации

ROLLER BEARING CAGE AND METHOD FOR MOUNTING A ROLLER BEARING CAGE

Номер: US20170108044A1
Автор: Beyfuss Berthold, Friedrich Hans-Juergen, Hofmann Sabine, Kristandt Holger, Radina Alfred, Schierling Jonas, Wagner Gerhard
Принадлежит: AKTIEBOLAGET SKF

A rolling-element bearing cage includes a first side ring and a second side ring connected to the first side ring by a plurality of bridges defining a plurality of pockets configured to receive a rolling-element. The first side ring includes a joint at which the first side ring is configured to be opened to increase a diameter of the first side ring, and the first side ring and the second side ring and the plurality of bridges are made of steel and an outer diameter of the second side ring is greater than 500 mm. 1. A rolling-element bearing cage having at least one first side ring extending in a circumferential direction , which includes an opening point , at which the first side ring is configured to be opened to expand a circumference of the first side ring , wherein the rolling-element bearing cage comprises steel and has an outer diameter greater than 500 mm.2. The rolling-element bearing cage according to claim 1 , comprising a second side ring extending in the circumferential direction claim 1 , which includes an opening point claim 1 , at which the second side ring is configured to be opened to expand a circumference of the second side ring.3. The rolling-element bearing cage according to claim 2 , wherein the opening point of the first side ring and the opening point of the second side ring are axially disposed at a same angular positions of the side rings.4. The rolling-element bearing cage according to claim 2 , wherein the second side ring has a larger diameter than the first side ring.5. The rolling-element bearing cage according to claim 1 , further including a closure element configured to hold the opening first point closed so that a circumference of the side ring is fixed.6. The rolling-element bearing cage according to claim 5 , wherein the connecting element is releasable.7. The rolling-element bearing cage according to claim 1 , wherein the first side ring includes opposing ends at the opening point of the first side ring that at least partially ...

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Номер записи: 77
29-04-2021 дата публикации

Multi-Axis Flexure

Номер: US20210123472A1
Автор: Bullard Andrew L., Cox Christopher A.
Принадлежит:

A multi-axis flexure device can include an interior flexure member and an exterior flexure member disposed about and coupled to the interior flexure member. The interior flexure member can have a first interior flexible blade connected to and integrally formed with a first interior end portion and an interior body portion. The interior flexure member can have a second interior flexible blade connected to and integrally formed with the interior body portion and a second interior end portion. The exterior flexure member can have a first exterior flexible blade connected to and integrally formed with a first exterior end portion and an exterior body portion. The exterior flexure member can have a second exterior flexible blade connected to and integrally formed with the exterior body portion and a second exterior end portion. The first interior end portion and the first exterior end portion can be coupled to one another to form a first flexure end portion, the second interior portion and the second exterior portion can be coupled to one another to form a second flexure end portion, and the interior body portion and the exterior body portion can be coupled to one another to form a flexure body portion, such that the first interior flexible blade and the first exterior flexible blade form a first cross-blade flexure operable to facilitate relative rotation between the first flexure end portion and the flexure body portion about a first axis, and the second interior flexible blade and the second exterior flexible blade form a second cross-blade flexure operable to facilitate relative rotation between the second flexure end portion and the flexure body portion about a second axis. 1. A multi-axis flexure device , comprising: a first interior flexible blade connected to and integrally formed with a first interior end portion and an interior body portion, and', 'a second interior flexible blade connected to and integrally formed with the interior body portion and a second ...

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Номер записи: 78
29-04-2021 дата публикации

Rolling bearing with ultrasonic distance sensor

Номер: US20210123479A1
Автор: Franck Landrieve
Принадлежит: SKF AB

A rolling bearing includes first and second rings each having an axial raceway and a radial raceway and axial rolling elements between the radial raceways and radial rolling elements between the axial raceways, the second ring having a protruding nose extending into an annular groove of the first ring, the nose having an axial cylindrical surface that forms the axial raceway of the second ring. Also at least one ultrasonic distance sensor mounted on the first ring in radial contact with the axial cylindrical surface of the nose and configured to emit radiation in a main radiation direction oriented towards a surface of the second ring that is inclined relative to a rotation axis of the rolling bearing.

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Номер записи: 79
11-04-2019 дата публикации

Assembly for a rolling element bearing

Номер: US20190107148A1
Автор: Arne Lars Jonas Kullin
Принадлежит: SKF AB

An assembly for a rolling element bearing, the assembly including a first cage segment and a second cage segment which are releasably connectable to one another, and at least one rolling element. The assembly further comprises a cage pocket for receiving the at least one rolling element. The cage pocket is at least partly defined by a cage pocket wall of at least one of the first cage segment and the second cage segment. The assembly is such that, when the at least one rolling element is in the cage pocket, the at least one rolling element prevents the first cage segment and the second cage segment from being releasably disengaged. A rolling element bearing can incorporate such an assembly.

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Номер записи: 80
13-05-2021 дата публикации

WHEEL AND LIFT UNIT FOR RADIATION IMAGING MODALITIES

Номер: US20210137471A1
Автор: Splinter Patrick Richard, Swain Ronald Elwin, Weed Steven Dana
Принадлежит:

Among other things, a radiation system is provided. The radiation system includes a stationary unit and a rotating unit that rotates about an axis relative to the stationary unit. A radiation source and a detector array are mounted to the rotating unit. A wheel mechanism at least partially supports the rotating unit and facilitates rotation of the rotating unit relative to the stationary unit. A lift unit is supported by the stationary unit and engages the rotating unit. When the lift unit is in a lowered position, the rotating unit is supported by the wheel mechanism and the lift unit is spaced a distance apart from the rotating unit. When the lift unit is in a raised position, the rotating unit is supported by the lift unit and the rotating unit is spaced a second distance apart from the wheel mechanism. 1. A wheel unit for a radiation system , the wheel unit comprising:a wheel mechanism configured to at least partially support a rotating unit and facilitate rotation of the rotating unit relative to a stationary unit, the wheel mechanism comprising at least one roller that is configured to impart rotation to the rotating unit, wherein a radiation source and a detector array are mounted to the rotating unit;a support structure configured to support the wheel mechanism, the support structure defining an opening that is sized to receive the wheel mechanism; and wherein:', 'when the attachment structure is in a locked position, the attachment structure engages the wheel mechanism and the support structure such that the wheel mechanism is attached to the support structure; and', 'when the attachment structure is in an unlocked position, the attachment structure does not engage at least one of the wheel mechanism or the support structure such that the wheel mechanism is detached from the support structure and removable from the support structure through the opening., 'an attachment structure configured to attach the wheel mechanism to the support structure,'}2. The ...

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Номер записи: 81
18-04-2019 дата публикации

BEARING ARRANGEMENT FOR FLUID MACHINERY APPLICATION

Номер: US20190113073A1
Автор: Kullin Arne Lars Jonas, REICHERT Juergen, Wendeberg Hans
Принадлежит:

A bearing arrangement for a fluid machinery application employing an axially locating bearing. The axially locating bearing includes: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing. Each of the first angular self-aligning contact bearing and the second angular self-aligning contact bearing includes a set of rolling elements arranged in a row and interposed between a respective curved inner raceway and an associated curved outer raceway. Each roller is a symmetrical cylindrically-shaped roller having a curved raceway-contacting surface. Each roller is inclined respective to the axial direction of the shaft by a respective contact angle. The rollers support an axial force and a radial force. The axially non-locating bearing position is arranged spaced apart from the axially locating bearing position, as seen in the axial direction. Examples of fluid machinery applications include: a wind turbine, water turbine or a propulsion turbine. 1. A bearing arrangement for a fluid machinery application having an axially locating bearing position and an axially non-locating bearing position , the axially locating bearing position comprising:a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing for locating a shaft against movement in an axial direction;the first angular self-aligning contact bearing having a first set of rolling elements arranged in a first row and interposed between a first curved inner raceway and a first curved outer raceway, wherein each roller is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface being engageable with the first curved inner raceway and the first curved outer raceway,wherein each of the first set of rolling elements of the first angular self-aligning contact bearing is inclined in relation to the axial direction of the shaft by a first contact angle; whereby the first set of rolling elements ...

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Номер записи: 82
13-05-2021 дата публикации

ROLLING-ELEMENT BEARING ASSEMBLY

Номер: US20210140483A1
Автор: Kroeger Jan, Lemper Peter, Liesegang Hans-Juergen, SCHULZ Klaus-Dieter
Принадлежит:

A rolling-element bearing assembly includes a first bearing ring and a second bearing ring that define a bearing interior between them, a plurality of rolling elements disposed in the bearing interior to allow a relative rotation of first and second bearing rings, and a seal assembly for sealing the bearing interior. The seal assembly includes a seal carrier that is connected to the first bearing ring such that they rotate together and a seal element that is connected to the seal carrier such that they rotate together, and the seal carrier comprises a fiber-reinforced plastic. 1. A rolling-element bearing assembly comprising:a first bearing ring and a second bearing ring that define a bearing interior between them,a plurality of rolling elements disposed in the bearing interior to allow a relative rotation of first and second bearing rings, anda seal assembly for sealing the bearing interior, the seal assembly including a seal carrier connected to the first bearing ring such that the seal carrier and the first bearing ring rotate together and a seal element connected to the seal carrier such that the seal element and the seal carrier rotate together,wherein the seal carrier comprises a fiber-reinforced plastic.2. The rolling-element bearing assembly according to claim 1 , wherein the seal carrier is manufactured from the fiberglass-reinforced plastic.3. The rolling-element bearing assembly according to claim 1 , wherein the seal carrier comprises a compression-molded fiber-matrix-composite plate.4. The rolling-element bearing assembly according to claim 1 , wherein the seal carrier comprises a plurality of seal carrier segments abutting against one another.5. The rolling-element bearing assembly according to claim 4 ,wherein the seal carrier segments include abutment surfaces having mutually complementary structures, andwherein the structures are formed such that a one-on-one arrangement and connection between two adjacent seal carrier segments is ensured in the ...

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Номер записи: 83
13-05-2021 дата публикации

ROLLING-ELEMENT BEARING ASSEMBLY

Номер: US20210140485A1
Автор: Kroeger Jan, Lemper Peter, Liesegang Hans-Juergen, SCHULZ Klaus-Dieter
Принадлежит:

A rolling-element bearing assembly includes first and second bearing rings that form a bearing interior between them and a plurality of rolling elements disposed in the bearing interior and a seal assembly for sealing the bearing interior. The seal assembly includes a seal carrier and a seal element having at least one primary seal lip for sealing the bearing interior and a secondary seal lip for sealing against external contamination. The seal element is connected to the seal carrier such that the primary seal lip and the secondary seal lip abut axially against an axial end surface of the second bearing ring. 1. A rolling-element bearing assembly comprising:a first bearing ring and a second bearing ring that form a bearing interior between them,a plurality of rolling elements disposed in the bearing interior to allow a relative rotation of a first bearing ring and a second bearing ring, anda seal assembly for sealing the bearing interior, the seal assembly including a seal carrier and a seal element,the seal carrier being connected to the first bearing ring such that they rotate together, andthe seal element including at least one primary seal lip for sealing the bearing interior and a secondary seal lip for sealing against external contamination,wherein the seal element is connected to the seal carrier such that the primary seal lip and the secondary seal lip abut against an axial end surface of the second bearing ring.2. The rolling-element bearing assembly according to claim 1 , wherein the first bearing ring is configured stationary and the second bearing ring is configured to rotate.3. The rolling-element bearing assembly according to claim 1 ,wherein the seal element further includes a seal body from which the primary seal lip and the secondary seal lip project, andwherein the seal body, the primary seal lip and the secondary seal lip form a one-piece element.4. The rolling-element bearing assembly according to claim 1 , wherein the primary seal lip abuts ...

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Номер записи: 84
07-05-2015 дата публикации

Bearing arrangement for fluid machinery application

Номер: US20150125104A1
Автор: Hans Wendeberg, Jonas Kullin, Juergen Reichert
Принадлежит: SKF AB

A bearing arrangement for a fluid machinery application employing an axially locating bearing. The axially locating bearing includes: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing. Each of the first angular self-aligning contact bearing and the second angular self-aligning contact bearing includes a set of rolling elements arranged in a row and interposed between a respective curved inner raceway and an associated curved outer raceway. Each roller is a symmetrical cylindrically-shaped roller having a curved raceway-contacting surface. Each roller is inclined respective to the axial direction of the shaft by a respective contact angle. The rollers support an axial force and a radial force. The axially non-locating bearing position is arranged spaced apart from the axially locating bearing position, as seen in the axial direction. Examples of fluid machinery applications include: a wind turbine, water turbine or a propulsion turbine.

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Номер записи: 85
09-04-2020 дата публикации

WHEEL BEARING SYSTEM WITH GENERATOR

Номер: US20200112229A1
Автор: KAWAMURA Mitsuo, Nishikawa Kentaro, YABUTA Hiroki
Принадлежит: NTN CORPORATION

Provided is a wheel bearing apparatus with a generator that can have a simplified structure to reduce costs and is capable of preventing electrolytic corrosion. The wheel bearing apparatus with a generator includes a wheel bearing and a generator. The generator includes a stator attached to a fixed wheel and a motor rotor attached to a rotating wheel and is of an outer-rotor type in which the stator is located on an outer periphery of the wheel bearing, and the motor rotor is located radially outside of the stator. The wheel bearing apparatus with the generator further includes at least one conducting unit that conducts a current between the fixed wheel and the rotating wheel. 1. A wheel bearing apparatus with a generator comprising:a wheel bearing including a fixed wheel and a rotating wheel having a hub flange, the rotating wheel being rotatably supported by the fixed wheel via rolling elements and attached with a vehicle wheel and a brake rotor at the hub flange;a generator including a stator attached to the fixed wheel and a motor rotor attached to the rotating wheel, the generator being of an outer-rotor type in which the stator is located on an outer periphery of the wheel bearing, and the motor rotor is located radially outside of the stator; andat least one conducting unit configured to conduct a current between the fixed wheel and the rotating wheel.2. The wheel bearing apparatus with the generator as claimed in claim 1 , wherein a first conducting unit of the at least one conducting unit is a conductive ring fixed to a peripheral surface of a raceway ring of one of the fixed wheel and the rotating wheel claim 1 , and a part of the conductive ring abuts with a raceway ring of the other of the fixed wheel and the rotating wheel.3. The wheel bearing apparatus with the generator as claimed in claim 1 , wherein a second conducting unit of the at least one conducting unit is an outer-side sealing member that is made of a conductive material and seals an outboard ...

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Номер записи: 86
25-08-2022 дата публикации

Casing reinforced with ribs for food applications

Номер: US20220268317A1
Автор: Andrea A. Bertolini, Ettore Bertelloni, Pasquale Frezza
Принадлежит: SKF AB

A casing of a bearing unit for food applications may include a base having at least one hole for housing at least one fixing bolts, a spherical seat for housing the bearing unit, and at least one reinforcement rib located between the hole and the spherical seat.

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Номер записи: 87
25-04-2019 дата публикации

ELECTROMAGNETICALLY ENABLED ACTIVE DYNAMIC PRESSURE GAS BEARING

Номер: US20190120292A1
Автор: Jin Pu
Принадлежит:

An electromagnetically enabled active dynamic pressure gas bearing is provided and includes an electromagnetic bearing and an elastic foil bearing sleeved between the electromagnetic bearing and a rotor shaft. The elastic foil bearing includes a top layer elastic foil and a bottom layer elastic foil, the top layer elastic foil is made of non-magnetic material, and a plurality of separate magnetic material areas are distributed on a surface of the top layer elastic foil. 1. An electromagnetically enabled active dynamic pressure gas bearing , comprising an electromagnetic bearing and an elastic foil bearing sleeved between the electromagnetic bearing and a rotor shaft;wherein the elastic foil bearing comprises a top layer elastic foil and a bottom layer elastic foil, and wherein the top layer elastic foil is made of non-magnetic material, and a plurality of separate magnetic material areas are distributed on a surface of the top layer elastic foil.27-. (canceled)8. The electromagnetically enabled active dynamic pressure gas bearing according to claim 1 , wherein the magnetic material areas are strip-shaped magnetic material areas or dotted magnetic material areas claim 1 , the strip-shaped magnetic material areas or the dotted magnetic material areas are uniformly distributed and a length direction of the strip-shaped magnetic material areas is parallel to a direction of an axis of the rotor shaft.9. The electromagnetically enabled active dynamic pressure gas bearing according to claim 1 , wherein the top layer elastic foil is a flat foil and the bottom layer elastic foil is a waved foil claim 1 , the flat foil is made of stainless steel band which is a non-magnetic material claim 1 , and after the separate magnetic material areas are sprayed on the surface of the top layer elastic foil claim 1 , the surface of the top layer elastic foil is covered by a ceramic coating.10. The electromagnetically enabled active dynamic pressure gas bearing according claim 1 , further ...

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Номер записи: 88
25-04-2019 дата публикации

CONCENTRATED HIGH-SPEED RIGID HUB

Номер: US20190120296A1
Автор: Christie Richard L., Christie Ryan J.K., Nance John D.
Принадлежит:

A concentrated high-speed rigid hub allows for heavier planters, high-speed planting and seeding devices in multiple and multiple challenging applications such as No-Till, High CEC soils, Compact Soils, Moist soils, High concentrations of Stubble and or Bt crops, and Cover or Green crops with massive structured root systems. The hub is made of one of high strength forging steel and medium carbon cast steel, whereby the hub lessons hub flexing, hub bending, cracking and premature failure. The hub comprises rigid, heavy duty deep bosses or gussets which increase structural strength and maximize the strength of attachment points adapted for either bolts or rivets attachment to a blade or object. 1. A concentrated high-speed rigid hub made of one of high strength forging steel and medium carbon cast steel , whereby said hub lessons hub flexing , hub bending , cracking and premature failure.2. The hub of comprising:a. a narrow circumferential side wall abutting and perpendicular to an outer hub rim that in turn abuts a hub top wall;b. said top wall including one of rigid, heavy duty deep bosses or gussets and cast or forged threaded apertures adapted for receiving fasteners and having a thickness depth greater than a thickness depth of said side wall and hub rim;c. said rigid, heavy duty deep bosses or gussets abutting an inner hub rim;d. a hub collar extending from said inner hub rim forming a bearing housing adapted to receive a bearing therein;wherein said hub is adapted to provide a maximum blade and bearing outer race contact area, in a concentrated size, configured for maximum soil depth.3. The hub of claim 2 , wherein there are four or more or continuous bosses or gussets having cast steel or forged steel threaded apertures.4. The hub of claim 2 , wherein there are six bosses or gussets having one or more of cast steel or forged steel threaded apertures.5. The hub of comprising rigid claim 1 , heavy duty deep bosses or gussets claim 1 , whereby said bosses or ...

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Номер записи: 89
14-05-2015 дата публикации

Tilting-Pad Thrust Bearing and Rotary Machine Having the Same

Номер: US20150132105A1
Автор: Kenichi Murata, Kenta Suzuki, Makoto Hemmi
Принадлежит: Mitsubishi Hitachi Power Systems Ltd

The invention provides a tilting-pad thrust bearing that requires less oil supply and a rotary machine having the same. A tilting-pad thrust bearing 100 comprises: multiple oil inlets 10 disposed in spaces between pads 6; multiple outflow guide grooves 12 each formed near the inner circumferential edge of the sliding surface of the pad 6 such that the outflow guide grooves 12 extend in a circumferential direction; and multiple inflow guide grooves 13 provided separately from the outflow guide grooves 12 and formed at the leading ends of the sliding surfaces of the pads 6 so as to be located more radially inward than the oil inlets 10. Each outflow guide groove 12 is open to the sliding surface and the trailing end surface of the pad 6. Each inflow guide grooves 13 is open to the leading end surface and the sliding surface of the pad 6.

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Номер записи: 90
27-05-2021 дата публикации

Rolling Bearing

Номер: US20210156422A1
Автор: ALTMAYER Thomas, PALMER Andreas, RUF Markus, ZELL Robert
Принадлежит:

An open-centered large rolling bearing having two concentric bearing rings, which are supported against one another in the axial direction of the rolling bearing by means of at least two axial bearings, which are arranged on opposite end faces of a bearing ring. In the radial direction, the bearing rings are supported against one another by at least three radial bearings, which are arranged on inner and outer circumferential sides of a bearing ring. 1. A rolling bearing comprising: oppositely disposed end faces; and', 'inner and outer circumferential sides;, 'concentric first and second bearing rings, each of which havingfirst and second axial bearings; andat least three radial bearings;{'b': '13', 'wherein the bearing rings are supported against one another in the axial direction () of the rolling bearing by means of the first and second axial bearings that are arranged on the oppositely disposed end faces of the first bearing ring; and'}wherein the first and second bearing rings are supported against one other in the radial direction by the at least three radial bearings that are arranged on the inner and outer circumferential sides of the first bearing ring.2. The rolling bearing according to claim 1 , wherein the first and second bearing rings are supported against one another in the radial direction by four radial bearings;wherein three of the four radial bearings are arranged on the outer circumferential side of the first bearing ring; andwherein a fourth of the four radial bearings is arranged on the inner circumferential side of the first bearing ring.3. The rolling bearing according to claim 1 , wherein two of the at least three radial bearings cover each other claim 1 , viewed in the radial direction; andwherein at least one further one of the at least three radial bearings is arranged without coverage, viewed in the radial direction, with respect to all of the radial bearings and with respect to the first and second axial bearings.4. The rolling bearing ...

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Номер записи: 91
27-05-2021 дата публикации

BEARING WITH GLIDING TARGET AND ASSOCIATED SENSOR

Номер: US20210156431A1
Автор: Landrieve Franck
Принадлежит:

A bearing providing a first ring and a second ring capable of rotating concentrically relative to one another, at least one annular groove being formed on the second ring and oriented towards the first ring. The bearing further providing at least one target element engaged inside the groove of the second ring while being freely gliding inside the groove in the circumferential direction, the target element protruding into a hole formed on the first ring so that the target element is blocked in rotation by the first ring when the second ring rotates and the first ring is fixed, and at least one sensor mounted on the first ring and facing the target element to detect axial positions of the target element. 1. A bearing comprising:a first ring and a second ring capable of rotating concentrically relative to one another, whereinat least one annular groove is formed on the second ring and oriented towards the first ring,at least one target element engaged inside the groove of the second ring while being freely gliding inside the groove in the circumferential direction, the target element protruding into a hole formed on the first ring so that the target element is blocked in rotation by the first ring when the second ring rotates and the first ring is fixed,at least one sensor mounted on the first ring and facing the target element to detect axial positions of the target element, and whereinthe target element is fixed in the axial direction with respect to the second ring, axial gaps being provided between the target element and the wall of the hole of the first ring.2. The bearing according to claim 1 , wherein the target element is provided with a target having a track coded in the axial direction and facing the sensor.3. The bearing according to claim 2 , wherein the target element is further provided with a target holder engaged inside the groove of the second ring and supporting the target.4. The bearing according to claim 1 , wherein the longitudinal axis of the ...

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Номер записи: 92
10-05-2018 дата публикации

Wind Turbine

Номер: US20180128247A1
Автор: Aristegui Lantero Jose Luis, Arlaban Gabeiras Teresa, Garcia Sayes Jose Miguel, Nunez Polo Miguel, Pascual Resano Javier
Принадлежит:

The present invention describes a wind turbine comprising a hub, at least one blade and at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring, and at least a rolling race, wherein the wind turbine further comprises at least a tensioning system configured to exert a radial compression force to at least a part of the outer ring of the at least one pitch bearing, thus increasing the resultant stiffness of the at least one pitch bearing. 1. A wind turbine comprising:a hub;at least one blade; andat least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring, and at least a rolling race;wherein the wind turbine further comprises at least a tensioning system configured to exert a radial compression force to at least a part of the outer ring of the at least one pitch bearing.2. The wind turbine of wherein the tensioning system comprises:at least one tensioning element with two ends;at least an anchoring element configured to receive at least one of the two ends of said tensioning element; andat least one fixing element configured to fix the at least one of the two ends of the tensioning element to the at least one anchoring element.3. The wind turbine of wherein the at least one anchoring element is removably attachable to the outer ring of the at least one pitch bearing.4. The wind turbine of wherein the at least one anchoring element comprises a contact surface configured to match an outer surface of the outer ring of the at least one pitch bearing in such a way that the tensioning system remains in a fixed position after applying a certain tension to the at least one tensioning element.5. The wind turbine of wherein the at least one anchoring element is removably attachable to the hub.6. The wind turbine of wherein the at least one anchoring element is a part of the hub.7. The ...

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Номер записи: 93
10-05-2018 дата публикации

WIND TURBINE ROTOR SHAFT ARRANGEMENT

Номер: US20180128248A1
Автор: LEANDER Håkan, Reichert Jürgen, Wendeberg Hans
Принадлежит: AKTIEBOLAGET SKF

A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft. 1. A wind turbine rotor shaft arrangement , comprising:a rotor shaft adapted to support wind turbine blades,a non-rotating first housing structure for supporting the rotor shaft, which first housing structure is arranged to be mounted to a wind turbine nacelle framing, anda first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point,wherein the first rolling bearing is a single row, self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner ring of the first rolling bearing and outer ring of the first rolling bearing,wherein each roller of the first rolling bearing is a symmetrical bearing roller and has a curved raceway-contacting surface arranged in contact with both of a curved inner raceway of the inner ring of the first rolling bearing and in a curved outer raceway of the outer ring of the first rolling bearing, andwherein a contact angle between each ...

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Номер записи: 94
10-05-2018 дата публикации

Ball bearing assembly

Номер: US20180128310A1
Автор: Wen-Chen Lai
Принадлежит: Shine Ying Co Ltd

A ball bearing assembly includes at least two units being axially coupled together to allow at least one set of plural spherical balls adapted to be installed between at least one pair of two adjacent units of the at least two units.

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Номер записи: 95
21-05-2015 дата публикации

Bearing unit for fluid machinery application

Номер: US20150139583A1
Автор: Hans Wendeberg, Jonas Kullin, Juergen Reichert
Принадлежит: SKF AB

A bearing unit for a fluid machinery application having a double-row bearing, the double-row bearing comprising: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing for locating and rotatably support a shaft; each angular self-aligning contact bearing having a respective set of rolling elements formed of rollers arranged in a row and interposed between an associated curved inner raceway and a curved outer raceway. Each roller is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface engaging with the curved inner and outer raceways. Each roller is inclined in relation to the axial direction of the shaft by a respective first or second contact angle. The rollers are arranged to cooperate with the associated curved inner and raceways for supporting an axial force and a radial force. Examples of fluid machinery applications include: wind turbine, water turbine or propulsion turbine arrangements.

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Номер записи: 96
21-05-2015 дата публикации

Roller bearing arrangement for mounting parts of a wind power plant and a wind power plant having a blade bearing designed in such a manner

Номер: US20150139809A1
Автор: Werner SCHRÖPPEL
Принадлежит: IMO Holding GmbH

The invention relates to a rolling bearing arrangement ( 5 ) for mounting parts of a wind power plant ( 1 ), comprising three relatively rotatable annular elements ( 6 - 8 ) arranged concentrically with one another and at least regionally inside one another for connection to relatively rotatable parts of the wind power plant, wherein two relatively rotatable connecting elements ( 6 - 9 ) are separated from each other by a gap ( 9, 10 ) and partially or wholly overlap each other in the radial direction, wherein, further, provided in the region of a gap in radially overlapping regions of the annular connecting elements are at least two rows of rolling elements ( 34, 35 ), each of which rolls along a respective two raceways ( 32, 33 ) that overlap each other at least regionally in the radial direction, as well as at least one additional row of rolling elements ( 42 ) whose raceways do not overlap in the radial direction, wherein the radially innermost connecting element and the radially outermost connecting element are connected to one machine part and the radially middle connecting element is connected to the respectively other machine part.

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Номер записи: 97
23-04-2020 дата публикации

Radial foil bearing

Номер: US20200124087A1
Автор: Naomichi Omori
Принадлежит: IHI Corp

The radial foil bearing (3, 3A, 3B, 3D) includes: a wave sheet-shaped back foil (11); and an intermediate foil (10) supported by the back foil, and the intermediate foil includes a flat portion (10b) facing a hill part (11c) of a wave sheet shape of the back foil, and a protruding part (39, 40, 40a, 40b, 40B) protruding toward the back foil via branching at a position in a circumferential direction between a top of at least one hill part and a top of a hill part adjacent to the one hill part in the wave sheet shape of the back foil.

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Номер записи: 98
03-06-2021 дата публикации

SLEWING BEARING WITH SEALING ARRANGEMENT

Номер: US20210164520A1
Автор: Delaby Juliette, Dondaine Herve
Принадлежит:

A slewing bearing includes first and second rings and rolling elements therebetween. The first ring has a shoulder, and a cap is fixed to the first ring that, with the shoulder, defines a radially outwardly facing circumferential groove. A sealing contact member is fixed to a surface of the second ring. A first seal is mounted in the groove, and a sealing member is mounted on the cap. The first seal and the sealing member each include a sealing lip in sliding frictional contact with the sealing contact member. 1. A slewing bearing comprising:a first ring having a shoulder,a cap fixed to the first ring and defining with the shoulder a radially facing circumferential groove, the cap including a circumferential slot on a frontal surface and a cap sealing member having an annular heel mounted in the circumferential slot, the cap sealing member having a sealing lip,a second ring,a sealing contact member fixed to a surface of the second ring at a joint,at least one row of rolling elements arranged between the first ring and the second ring, anda first seal having an annular heel and a sealing lip, the annular heel of the first seal being mounted in the circumferential groove,wherein the first ring and the second ring are configured for relative rotation around a rotation axis,wherein the sealing lip of the cap sealing member is in sliding frictional contact with a first surface portion of the sealing contact member, andwherein the sealing lip of the first seal is in sliding frictional contact with a second surface portion of the sealing contact member.2. The slewing bearing according to the claim 1 ,including a second seal having an annular heel and a sealing lip, the annular heel of the second seal being mounted in the circumferential groove,wherein the shoulder includes an annular axial collar for blocking radial movement of the second seal.3. The slewing bearing according to claim 1 , wherein the cap is provided with an annular axial collar for blocking radial movement ...

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Номер записи: 99
18-05-2017 дата публикации

BEARING ELEMENT FOR A PLAIN OR ANTIFRICTION BEARING

Номер: US20170138401A1
Автор: Mueller Claus, Rudnik Yegor, Schulte-Noelle Christian
Принадлежит:

A bearing element () for a plain or antifriction bearing is provided, the bearing element () being formed of or including at least sectionally a powder-metallurgical composite material which includes a metallic binder phase and a hard material phase, wherein the metallic binder phase is based on at least one element from the following group: chromium, cobalt, molybdenum, nickel, titanium. 110-. (canceled)11. A bearing element for a plain or antifriction bearing , the bearing element comprising:at least sectionally a powder-metallurgical composite material including a metallic binder phase and a hard material phase, wherein the metallic binder phase is based on at least one element from the group consisting of chromium, cobalt, molybdenum, nickel, and titanium.12. The bearing element as recited in wherein the metallic binder phase further comprises fractions of iron or carbon or nitrogen or of at least one iron or carbon or nitrogen containing compound.13. The bearing element as recited in wherein the metallic binder phase comprises chromium carbide or molybdenum carbide or titanium carbide as carbon containing compound.14. The bearing element as recited in wherein the hard material phase includes individual hard material phase grains claim 11 , and the composite material includes an intermediate phase formed around the hard material phase grains claim 11 , attachment of the hard material phase grains to the metallic binder phase is realized via the intermediate phase.15. The bearing element as recited in wherein the hard material phase is includes at least one of the following hard material compounds: borides claim 11 , carbides claim 11 , carbonitrides claim 11 , and silicides.16. The bearing element as recited in wherein the hard material phase includes titanium carbide or tungsten carbide.17. The bearing element as recited in wherein the hard material phase includes titanium carbonitride or titanium nitride.18. The bearing element as recited in wherein the hard ...

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Номер записи: 100