Grease supply system for rolling bearing

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.

WHEEL ROLLING BEARING UNIT

A wheel rolling bearing unit capable of preventing grease leak even if the interference of the sealing member for sealing the clearance between the inner and outer rings is made small. The wheel rolling bearing unit according to the present invention is equipped with an inner shaft; an outer ring disposed concentrically on the outer peripheral side of the inner shaft; a plurality of balls disposed between these; and a pair of cages for retaining the balls in the circumferential direction. On the inner peripheral surface of each of the pair of cages, a concave section being dented to the outside in the radial direction to hold grease is formed in the range from the axial outside end section to the inside end section. 1. A wheel rolling bearing unit comprising:an inner ring member, one end of which a flange on which a wheel is mounted is formed;an outer ring member disposed concentrically on an outer peripheral side of the inner ring member;a plurality of rolling elements arranged in double rows and disposed between the inner ring member and the outer ring member;a pair of cages disposed along both rows of the plurality of rolling elements to retain the rolling elements in a circumferential direction; andsealing members for hermetically sealing openings at both ends of an annular space formed between the inner ring member and the outer ring member in which grease for lubricating the respective members has been introduced, wherein,on an inner peripheral surface of each of the pair of cages, a concave section being dented to the outside in a radial direction to hold the grease is formed in a range from an outside end section to an inside end section in an axial direction.2. The wheel rolling bearing unit according to claim 1 , wherein the concave section includes an inclined surface inclined so as to be expanded in diameter gradually from the outside end section in the inner peripheral surface of the cage to the inside in the axial direction.3. The wheel rolling bearing ...

Grease composition and rolling device

A grease composition which is excellent in seizure resistance can be provided without deteriorating resistance to stirring, in the rolling device, and a rolling device in which the grease composition intervenes to a predetermined portion can be also provided by use of a grease composition comprising a base oil, a thickener and an amine antioxidant, the thickener being a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, an alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, the amount of cyclohexylamine in the amine mixture being 91 to 99% by mole, and the amount of the amine antioxidant in the grease composition being 21% by mass or more.

SEALED ROLLER BEARING

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 ...

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

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 ...

Strain Wave Gear System

A strain wave gear system () includes first and second sets of ball bearings () located intermediate a flange () and a retainer plate () rotatable with an output () and a radially oriented flat disc () of the input including strain relief (). Strain relief () is a helical slot in a coupling () located radially within the wave generator () and the ring gear (). The ring gear () is sealed by a sealing system including sealant () forced by a protrusion () of the cap () entering into a cavity () through a channel () into a relief volume () of the housing (). The bearing () rotatably mounting the housing () to the output () is lubricated by a lubricating system including plungers () threadably received in axial bores () intersecting with radial bores () in communication with radial holes () of the bearing (). 1. Strain wave gear system comprising , in combination: an input including a radially extending disc having first and second axially spaced faces; a ring gear; a wave generator of a non-circular shape and connected to and rotatable with the input; an output; a flexspline connected to and rotatable with the output , with the flexspline in gearing engagement with the ring gear and located intermediate the ring gear and the wave generator; first and second radially extending and axially spaced races connected to the output; a first bearing located intermediate the first face and the first race; and a second bearing located intermediate the second face and the second race.2. The strain wave gear system as recited in claim 1 , wherein the input further includes a strain relief.3. The strain wave gear system as recited in claim 2 , wherein the input is a hub; and wherein the strain relief is a slot in the hub and in a helical shape to compensate for parallel and angular misalignment of the input.4. The strain wave gear system as recited in claim 3 , wherein the input further includes a collet fixed intermediate the hub and the radially extending disc claim 3 , with the ...

Method of purging lubricant within a bearing and system using the method

A method of operating a lubrication system for lubricating a bearing in a housing includes the following steps: dispensing a quantity of lubricant within the bearing housing; monitoring a containment period of time during which the lubricant quantity is contained within the housing; determining when the containment time period exceeds a predetermined value of time; and dispensing another quantity of lubricant within the bearing housing when the containment time period exceeds the predetermined time value such that the other quantity of lubricant displaces the quantity of lubricant from the bearing housing.

Machine with a system for axial blocking of the shaft

A machine including at least one bearing mount; at least one bearing carried by the bearing mount, the bearing comprising inner and outer races and rolling elements between the races; a shaft engaged in the bearing, axially blocked relative to the inner race; a pushrod cover arranged on one side of the bearing, having a surface opposite the bearing and having, on its radially outer edge, a bead of material in contact with the outer race; at least one push element movable transversely to the axis of rotation (X) of the shaft in order to exert a pressure on said surface of the push rod cover in order to press it against the outer race and axially block said outer race.

Axle Assembly With Sealed Wheel End Bearings And Sealed Pinion Input Bearings

A vehicle axle assembly including an axle housing, carrier assembly, and first and second axle shafts. The axle housing is formed from an upper beam and a lower beam that are positioned in a clam-shell arrangement. The carrier assembly includes a carrier housing and a differential that includes a ring gear arranged in meshing engagement with a pinion. The first and second axle shafts extend outwardly from the differential in opposite directions. The pinion is rotatably supported by a self-lubricating cartridge pinion input bearing and the outboard ends of the first and second axle shafts are rotatably supported by self-lubricating and unitized grease wheel end bearings. These bearings do not require lubrication from oil contained inside the axle housing allowing for a reduced oil fill level in the axle housing, creating less viscous losses and better efficiency. 1. An axle assembly for a vehicle , including;an axle housing extending longitudinally along a longitudinal axis between a first wheel end and a second wheel end, said axle housing including a center section, a first tubular segment extending longitudinally between said first wheel end and said center section, and a second tubular segment extending longitudinally between said second wheel end and said center section;a carrier assembly housed in said center section of said axle housing, said carrier assembly including a carrier housing that is fixedly mounted to said axle housing, a pinion that includes a pinion gear and a pinion shaft that extends through said carrier housing, and a differential that is rotatably supported by said carrier housing;said differential including a gear set having a ring gear that is arranged in meshing engagement with said pinion gear;a first axle shaft extending longitudinally through said first tubular segment of said axle housing between a first axle shaft inboard end and a first axle shaft outboard end;a second axle shaft extending longitudinally through said second tubular ...

Strain Wave Gear System

A strain wave gear system (10) includes first and second sets of ball bearings (80, 82) located intermediate a flange (84) and a retainer plate (88) rotatable with an output (54) and a radially oriented flat disc (74) of the input including strain relief (76). Strain relief (76) is a helical slot in a coupling (70) located radially within the wave generator (94) and the ring gear (22). The ring gear (22) is sealed by a sealing system including sealant (42) forced by a protrusion (34) of the cap (24) entering into a cavity (36) through a channel (40) into a relief volume (38) of the housing (12). The bearing (48) rotatably mounting the housing (12) to the output (54) is lubricated by a lubricating system including plungers (110) threadably received in axial bores (102) intersecting with radial bores (104) in communication with radial holes (47) of the bearing (48).

Bearing

A rolling element bearing comprising inner and outer rings; a plurality of rolling elements disposed between opposing surfaces of the inner and outer rings; and a bearing shield comprising a first member having an annular surface facing the plurality of rolling elements, the first member either (1) extending from the inner ring towards the outer ring (defining a gap between the first member and the outer ring) and the inner ring having a low surface energy surface adjacent the gap, or (2) extending from the outer ring towards the inner ring (defining a gap between the first member and the inner ring) and the inner ring comprises a low energy surface adjacent the gap. The low energy surfaces each have a surface energy of ≦0.028 N/m.

LOW-FRICTION DYNAMIC SEAL

A sealing arrangement, for sealing of a radial gap between relatively rotatable inner and out components, whereby the inner component is rotational about an axis of rotation and the outer component is coaxially arranged around the inner component. The sealing arrangement comprises: a dynamic seal part mountable to the inner component; a static seal part mountable to the outer component; and first and second labyrinth seals, each being formed by a gap between at least one set of opposing surfaces on the static and dynamic seal parts, and a lip seal arranged radially between the first and second labyrinth seal. The lip seal comprises a sealing lip connected to the dynamic seal part and bears against a radially oriented counterface on the static seal part. The sealing lip has a longitudinal extension in a radial cross section that extends towards the rotation axis at an angle between 10° and 80°. 1. A sealing arrangement , for sealing a radial gap between a relatively rotatable inner component and an outer component , wherein the inner component is rotational about an axis of rotation and the outer component is coaxially arranged around the inner component , the sealing arrangement comprising:a dynamic seal part that is mountable to the inner component;a static seal part that is mountable to the outer component;a first labyrinth seal and a second labyrinth seal, each of the first labyrinth seal and the second labyrinth seal are formed by a gap between at least one set of opposing surfaces on the static and dynamic seal parts;a lip seal, wherein the lip seal is arranged radially between the first labyrinth seal and the second labyrinth seal,wherein the lip seal comprises a sealing lip which is connected to the dynamic seal part,wherein the lip seal bears against a radially oriented counterface on the static seal part,wherein the sealing lip has a longitudinal extension in a radial cross section that extends towards the rotation axis at an angle of between 10° and 80°.2. ...

Vehicle main electric motor

A vehicle main electric motor includes: a ring-shaped filling chamber, which is formed in contact with a ball bearing and a roller bearing in a direction of a rotation shaft, for filling with a semi-solid lubricant, and which has a central axis concentric with the rotation shaft; and a discharge section connected to the filling chamber, for inflow of the semi-solid lubricant from the filling chamber. A display member, which has a specific gravity lower than a specific gravity of the semi-solid lubricant, is arranged, in an interior of the discharge section, at an initial position that is a position not reached by the semi-solid lubricant during an initial greasing. The discharge section has a retaining part for retaining, at a movement position that is a determined position within the discharge section, the display member moving in a greasing direction due to pressure of the semi-solid lubricant during a supplemental greasing. At least a portion of visible light from the exterior reaches at least a portion of the movement position.

BEARING STRUCTURE

A deflector is arranged to prevent differential oil, as lubrication oil, leaking from a gap between a rod of an axle and a shaft portion of a drive shaft and passing through a unit bearing, from attaching to an inner periphery of a brake drum. A guide groove unit is formed on an inward surface of a hub in a vehicle-width direction so as to guide the differential oil leaking into an internal space defined inside of the deflector to outside of the brake drum. 1. A bearing structure wherein a hub is rotatably fitted , through a bearing , over a rod protruded from an end of an axle , a drive shaft being inserted into said axle from a rod side and having a flange formed on an end thereof away from the inserted end and fastened to an outward surface of said hub in a vehicle-width direction for rotation of said hub through said drive shaft , a brake drum being mounted on an inward surface of a flange of said hub in the vehicle-width direction for rotation of the brake drum integrally with said hub ,said bearing structure comprisinga deflector arranged to prevent lubrication oil, which leaks from a gap between the rod of said axle and a shaft portion of the drive shaft to pass through said bearing, from attaching to an inner periphery of the brake drum, anda guide groove unit formed on an inward surface of said hub in the vehicle-width direction to guide the lubrication oil, which leaks in an internal space defined inside of said deflector, outside of the brake drum.2. The bearing structure according to wherein said guide groove unit comprises lightening depressions formed on an outer periphery of the inward surface of the flange of the hub in the vehicle-width direction claim 1 , and discharge grooves on an inward surface of said hub in the vehicle-width direction for communication between said lightening depressions and an internal space defined by said deflector.3. A bearing structure wherein a hub is rotatably fitted claim 1 , via a bearing claim 1 , over a rod for ...

HARD FILM, HARD FILM FORMED BODY, AND ROLLING BEARING

The present invention provides a hard film which has high wear resistance and excellent peeling resistance and can be prevented from peeling off a base material over a long period of time and a hard film formed body on which the hard film is formed. A hard film () has a structure composed of a first mixed layer (), consisting mainly of Cr and WC, which is formed directly on a raceway surface () of an inner ring () (base material) of a rolling bearing, a second mixed layer (), consisting mainly of WC and DLC, which is formed on the first mixed layer (), and a surface layer (), consisting mainly of DLC, which is formed on the second mixed layer (). In the first mixed layer (), a content rate of the Cr becomes continuously or stepwise lower and that of the DLC becomes continuously or stepwise higher from a side of the base material toward a side of the second mixed layer (). In the second mixed layer (), a content rate of the WC becomes continuously or stepwise lower and that of the DLC becomes continuously or stepwise higher from a side of the first mixed layer () toward a side of the surface layer (). A content of hydrogen in the second mixed layer () is set to 10 to 45 atomic percent. 1. A hard film formed on a surface of a base material ,said hard film having a structure composed of a first mixed layer, consisting mainly of chromium and tungsten carbide, which is formed directly on a surface of said base material,a second mixed layer, consisting mainly of tungsten carbide and diamond-like carbon, which is formed on said first mixed layer, anda surface layer, consisting mainly of diamond-like carbon, which is formed on said second mixed layer,wherein in said first mixed layer, a content rate of said chromium becomes continuously or stepwise lower and that of said diamond-like carbon becomes continuously or stepwise higher from a side of said base material toward a side of said second mixed layer;in said second mixed layer, a content rate of said tungsten carbide ...

RELEASE BEARING COVER AND WASHER SEAL

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

JOURNAL BEARING FOR UNIVERSAL JOINTS AND METHOD FOR PRODUCING A JOURNAL BEARING

A journal bearing for universal joints, including a universal joint sleeve, roller-like rolling bodies, and a thrust washer is provided. A method for producing a journal bearing is also provided. 1. A journal bearing for universal joints , comprising: a universal joint sleeve , rolling bodies , and a thrust washer ,{'sub': '1', 'the universal joint sleeve includes a base, a hollow cylindrical base body adjacent to the base, an edge, and an opening, the edge is formed from steel in one piece with the base body and extends from the base body in a radial direction inward at an angle to an axis of symmetry of the base body such that the opening bordered on a circumferential side by the edge has an opening cross section with an opening diameter (D) that is smaller than an inner diameter (d) of the base body,'}the rolling bodies are distributed on the circumferential side on an inside on the base body on a roller raceway,{'sub': '2', 'the thrust washer is arranged axially between the base and the rolling bodies and has an external cylindrical shape, as well as an outer diameter (d) that is larger than the opening diameter (D), and'}the base body and the edge together have a hardened surface on an inside and an outside of the universal joint sleeve on a surface of the base body and the edge, and the thrust washer has an elastic construction with a shape that is deformable elastically to a cross section that is equal to or less than the opening cross section defined by the opening diameter (D).2. The journal bearing according to claim 1 , wherein at least the surface has claim 1 , at least on the roller raceway claim 1 , a surface hardness of at least 700 HV1.3. A method for producing a journal bearing according to claim 1 , comprising: forming the universal joint sleeve by shaping a cup-shaped sleeve that has a hollow cylindrical base body claim 1 , a base claim 1 , and a hollow cylindrical extension of the base body claim 1 ,generating the edge with the opening cross ...

ROLLING BEARING COMPRISING A SEALING FLANGE

A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements that are disposed radially between the rings, at least one seal forming a first sealing component that is fixed to one of the rings and engages with the other ring, and at least one flange forming a second sealing component that is fixed to the other ring and is offset axially with respect to the seal on the outer side of the bearing. At least one of the first and second sealing components comprises at least two annular ribs, the other sealing component being mounted axially in contact therewith. At least one closed annular space is delimited by the ribs and by the other sealing component. At least one lubricant is disposed inside the space. 1. A rolling bearing comprising:an outer ring;an inner ring;at least one row of rolling elements that is disposed radially between the rings;at least one seal forming a first sealing element that is fixed to one of the rings and engages with the other ring; wherein at least one of the first sealing element and second sealing element comprises at least two annular ribs,', 'wherein the other sealing element is mounted axially in contact therewith,', 'wherein at least one closed annular space is delimited by the ribs and by the other sealing element; and, 'at least one flange forming a second sealing element that is fixed to the other ring and is offset axially with respect to the seal on the outer side of the bearing,'}at least one lubricant disposed inside the at least one closed annular space.2. The rolling bearing according to claim 1 , wherein the flange is elastically deformable at least in part in the axial direction claim 1 ,wherein the flange is deformed axially by the axial contact with the seal.3. The rolling bearing according to claim 1 , wherein the thickness of each rib decreases in the direction of its free end which is in axial contact with the other sealing element.4. The rolling bearing according to claim 1 , wherein ...

GREASE COMPOSITION AND ROLLING BEARING

A grease composition containing base oil, a thickener, and an additive, wherein said additive contains at least one kind selected from among a phosphite ester shown by a chemical formula (1) or a phosphite ester shown by a chemical formula (2); a content of said phosphite ester is 0.5 to 4 parts by weight for 100 parts by weight which is a total of an amount of said base oil and that of said thickener; and said additive contains neither phosphite esters other than said phosphite ester shown by said formula (1) or by said formula (2) nor phosphate esters having organic groups whose carbon number is not less than three: 114-. (canceled)16. A rolling bearing according to claim 15 , wherein said base oil is at least one selected from among ester oil and poly-α-olefin oil.17. A rolling bearing according to claim 16 , wherein said base oil is said ester oil or a mixed oil of said ester oil and said poly-α-olefin oil.18. A rolling bearing according to claim 15 , wherein a content of said thickener which occupies in 100 parts by weight of a total amount of said base oil and said thickener is 5 to 30 parts by weight.19. A rolling bearing according to claim 15 , wherein said thickener is at least one selected from among lithium soap and a urea compound.20. A rolling bearing according to claim 15 , which is a deep groove ball bearing.21. A rolling bearing according to claim 15 , which supports rotors of motors for industrial machines and electric equipments and rotors of motors for driving electric cars.23. A rolling bearing according to claim 22 , wherein said rolling bearing is used as a hub bearing.24. A rolling bearing according to claim 23 , whereincarbon steel for machine structural use is used as a material in said hub bearing.26. A rolling bearing according to claim 23 , wherein said base oil is a mineral oil claim 23 , and a kinematic viscosity of said base oil at 40° C. is 20 to 150 mm/s.27. A rolling bearing according to claim 23 , wherein a content of said ...

PIVOT ASSEMBLY BEARING DEVICE

A pivot assembly bearing device includes a shaft having an outer peripheral surface and a rolling bearing fixed to the shaft. An annular sealing surface axially overlapping with at least a part of an end surface of the rolling bearing is provided on an axially outer side of the rolling bearing. An oil-repellent film is annularly formed on at least one of the sealing surface and a part of the outer peripheral surface of the shaft located axially outward from the rolling bearing. 1. A pivot assembly bearing device comprising:a shaft having an outer peripheral surface; anda rolling bearing fixed to the shaft,wherein an annular sealing surface axially overlapping with at least a part of an end surface of the rolling bearing is provided on an axially outer side of the rolling bearing, andwherein an oil-repellent film is annularly formed on at least one of the sealing surface and a part of the outer peripheral surface of the shaft located axially outward from the rolling bearing.2. The pivot assembly bearing device according to claim 1 , further comprising:an annular sealing plate fixed to the outer peripheral surface of the shaft,wherein the sealing surface is at least one of a surface of the annular sealing plate on a rolling bearing side and a surface of the annular sealing plate on an opposite side of the rolling bearing.3. The pivot assembly bearing device according to claim 1 , further comprising:a housing to which an outer ring of the rolling bearing is fixed; andan annular sealing plate fixed to the outer peripheral surface of the shaft or an inner peripheral surface of the housing,wherein the sealing surface is at least one of a surface of the annular sealing plate on a rolling bearing side, and a surface of the annular sealing plate on an opposite side of the rolling bearing.4. The pivot assembly bearing device according to claim 2 ,wherein the oil-repellent film is formed on the at least one of the surface of the annular sealing plate on the rolling bearing ...

BEARING TYPE GEAR SYSTEM FOR UNDERGROUND MINING EQUIPMENT

A bearing type gear system for use with low seam crawler drive for underground mining equipment. The Bearing type gear system is comprised generally of a shaft, a set of multiple lubrication reservoirs, a needle bearing set or sets, a gear or gears, and gear teeth on the gear(s). As lubrication is sent into the shaft and gear area, the reservoirs along the shaft will pick up and hold portions of the lubrication. The reservoirs of the design herein, holding lubrication, can then help distribute the lubrication into the bearings over a greater amount of time. The reservoirs are of a number and location of intervals to provide sufficient lubrication to the entire surface of the shaft of the reservoirs as the shaft turns. 1. A bearing type gear system comprised of:a shaft,a set of at least three lubrication reservoirs located on the surface of the shaft,at least one bearing set comprised of a set of at least a pair of bearings,and at least one gear with a set of gear teeth and further comprised of at least one bearing bed capable of supporting the at least one needle bearing set,wherein the lubrication reservoirs are capable of collecting lubrication and assisting in distributing at least a portion of the lubrication to the at least one bearing setand wherein the set of lubrication reservoirs are of a number and each of a location on the shaft so as to provide sufficient lubrication to the surface of the shaft and the at least one bearing set.2. A bearing type gear system according to claim 1 , wherein at least one lubrication reservoir is located on the shaft at each end of the gear along the shaft.3. A bearing type gear system according to claim 1 , wherein the lubricant is comprised of a lubrication oil.4. A bearing type gear system according to claim 1 , wherein the at least one gear is further comprised of at least one bearing wall protruding above the bearing bed.5. A bearing type gear system according to claim 1 , further comprised of at least one aperture ...

GREASE COMPOSITION FOR ROLLING BEARING AND ROLLING BEARING

The present invention provides: a grease composition for rolling bearings which includes a base oil and a diurea compound incorporated therein as a thickener, the base oil including at least one oil selected from trimethylolpropane fatty acid ester oils and pentaerythritol fatty acid esters or a mixed oil which includes the at least one oil and another lubricating oil and having a kinematic viscosity at 40° C. of 19-35 mm/s and an amount of evaporation through 250-hour holding at 150° C. of 10-15% by mass; and a rolling bearing packed with the grease composition.

TEMPERATURE SENSING GREASE FITTING WITH ALARM

A bearing temperature monitoring system for detecting a temperature of bearing grease within a bearing housing. The bearing temperature monitoring system comprises a housing mountable to the bearing housing, a power source selectively outputting an electrical current, and an electrical circuit. The electrical circuit includes a temperature sensor component electrically coupled to the power source. The temperature sensor component can be responsive to a change in temperature such that the temperature sensor component opens or closes the electrical circuit at a predetermined temperature even in the absence of an applied electrical current. The electrical circuit further includes an alert device electrically coupled to the power source and the temperature sensor component that outputs an alert in response to the temperature sensor component. 1. A bearing temperature monitoring system for detecting a temperature of bearing grease within a bearing housing , said bearing temperature monitoring system comprising:a housing mountable to the bearing housing;a power source selectively outputting an electrical current; andan electrical circuit having a temperature sensor component electrically coupled to said power source, said temperature sensor component being responsive to a change in temperature such that said temperature sensor component opens or closes said electrical circuit at a predetermined temperature even in the absence of an applied electrical current, said electrical circuit further having an alert device electrically coupled to said power source and said temperature sensor component, said alert device outputting an alert in response to said temperature sensor component.2. The bearing temperature monitoring system according to claim 1 , further comprising:a grease fitting extending from said housing, said grease fitting being in fluid communication with the bearing grease within the bearing housing.3. The bearing temperature monitoring system according to claim 2 ...

Bearing system with lubricated exclusion seal

A bearing system includes a bearing housing configured to house a bearing and enclosing a free volume for receiving a lubricant, a bearing, a pump configured to pump lubricant into the free volume, a shaft in an opening in the housing rotatably supported by the bearing, an exclusion seal between the shaft opening and the shaft that is repeatably and non-destructively shiftable from a sealing state in which it substantially prevents lubricant from leaving the free volume and a release state in which it allows lubricant to escape between the exclusion seal and the shaft. The exclusion seal is caused to shift by increasing and decreasing a pressure in the bearing housing, and the system includes a controller configured to repeatedly shift the exclusion seal by raising and lowering the pressure in the free volume to continuously maintain a lubricating film between the exclusion seal and the shaft.

SEAL STRUCTURE AND TURBOCHARGER

According to an aspect of the present disclosure, a seal structure includes a rotary shaft that is provided inside a housing, a metal-made surrounding portion of the housing that surrounds the rotary shaft in a radial direction of the rotary shaft, and a resin-made seal member that faces an inner circumferential surface of the surrounding portion and rotates together with the rotary shaft. 1. A seal structure comprising:a rotary shaft that is provided inside a housing;a metal-made surrounding portion of the housing that surrounds the rotary shaft in a radial direction of the rotary shaft; anda resin-made seal member that faces an inner circumferential surface of the surrounding portion and rotates together with the rotary shaft.2. The seal structure according to claim 1 ,wherein the seal member includes a plurality of toric portions protruding toward the surrounding portion, and a groove portion is provided between the toric portions.3. A turbocharger comprising:the housing that includes the surrounding portion;a compressor impeller that is attached to the rotary shaft; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the seal structure according to that is provided on a rear surface side of the compressor impeller inside the housing.'}4. A turbocharger comprising:the housing that includes the surrounding portion;a compressor impeller that is attached to the rotary shaft; and{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'the seal structure according to that is provided on a rear surface side of the compressor impeller inside the housing.'}5. The turbocharger according to claim 3 ,wherein the compressor impeller is made of a resin and includes a boss portion which extends to the rear surface side of the compressor impeller and abuts the seal member.6. The turbocharger according to claim 4 ,wherein the compressor impeller is made of a resin and includes a boss portion which extends to the rear surface side of the compressor impeller and abuts the seal member. ...

Grease for rolling bearing, rolling bearing, rolling bearing device, and information recording and reproducing apparatus

Provided is grease for a rolling bearing of an information recording and reproducing apparatus 1, containing a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant (A) expressed by the General Formula (1), and a phenol-based antioxidant (B) expressed by the General Formula (2).

OLEOPHILIC BEARING WITH SURFACE-MODIFIED PART MADE OF STAINLESS ROLLING BEARING STEEL

In order to make a bearing, such as a roller bearing, insensitive to a lack of maintenance lubrication or irregular maintenance lubrication while at the same time retaining its mechanical performance, at least one bearing part of the bearing is provided at least partially with an oleophilic adhesion promoter layer. The adhesion promoter layer binds a lubricant layer of the bearing to the bearing part provided with the adhesion promoter layer. The adhesion promoter layer is bonded to an elemental-iron-free surface of a bearing part body. The removal of free iron from the bearing part body surface is carried out with nitric acid, chromate solution and/or citric acid. The treated bearing part has an oleophilic anti-corrosion adhesion promoter layer. The bearing may be used in pressure-operated devices, in particular in turbine handpieces used by dentists, because the loss of the lubricant layer during operation of the device was particularly high. 1. A bearing , comprising:an inner ring;an outer ring which is rotatable relative to the inner ring;wherein the inner ring has an inner ring body made of stainless rolling bearing steel and the outer ring has an outer ring body made of stainless rolling bearing steel;wherein a lubricant layer is formed on at least part of the surface between the inner ring and the outer ring; andwherein at least part of the surface of the inner ring body and/or of the outer ring body is elemental-iron-free and is bonded to an oleophilic adhesion promoter layer.2. The bearing as claimed in claim 1 , wherein the bearing is in the form of a rolling bearing.3. The bearing as claimed in claim 2 , wherein the bearing is in the form of a deep groove ball bearing or an angular contact bearing claim 2 , wherein the bearing comprises a plurality of balls and a cage for guiding the balls.4. The bearing as claimed in claim 3 , wherein at least one ball has a ball body at least part of the surface of which is elemental-iron-free claim 3 , wherein the ...

Rolling bearing and its packaging method

To provide a rolling bearing in which a favorable antirust performance can be obtained while reducing an amount of antirust oil than before, after removing chloride ions and sulfate ions from the entire surface of the bearing, antirust oil is provided to adhere thereto at an average film thickness of 4.5 μm to 10 μm, and the entire bearing is covered with a volatile corrosion inhibitor film such that a space between the volatile corrosion inhibitor film and the bearing is kept in a pressure-reduced condition.

Flywheel Device for Position Stabilization of a Spacecraft

The invention relates to a flywheel device for position stabilization of a spacecraft, comprising a carrier (), a rotor (), a magnetic drive () for the rotatingly driving the rotor () relative to the carrier (), and a roller bearing () arranged between the rotor () and the carrier (). A magnetic force can be generated between the rotor () and the carrier () by means of the magnetic drive () in order to pre-stress the rolling bearing (). The outer diameter (A) of the rotor () can have, for example, only a maximum of 2.5 times of the rolling bearing diameter (W). 112-. (canceled)13. A flywheel device for position stabilization of a spacecraft , the flywheel device comprising:a carrier;a rotor;a magnetic drive configured to drive the rotor rotatingly relative to the carrier; anda roller bearing arranged between the rotor and the carrier,wherein the magnetic drive is configured to generate a magnetic force between the rotor and the carrier for pre-stressing the roller bearing,wherein an outer diameter of the rotor is at most 2.5 times a diameter of the roller bearing.14. The flywheel device of claim 13 , wherein the outer diameter of the rotor is at most 2 times the diameter of the roller bearing.15. The flywheel device of claim 13 , wherein the outer diameter of the rotor is at most 1.5 times the diameter of the roller bearing.16. The flywheel device of claim 13 , wherein the outer diameter of the rotor is at most 1.3 times the diameter of the roller bearing.17. The flywheel device of claim 13 , wherein the outer diameter of the rotor is at most 1.2 times the diameter of the roller bearing.18. The flywheel device of claim 13 , wherein the outer diameter of the rotor is at most 1.0 times the diameter of the roller bearing.19. The flywheel device of claim 13 , wherein the magnetic drive comprises:a magnetic ring arranged at the rotor and comprising magnetic poles;a magnetic circuit closing means arranged at the carrier opposite to the magnetic ring; andmagnetic coils ...

Oil-mist-free and high-speed electric spindle

An oil-mist-free and high-speed electric spindle is provided by the present invention, which is capable of avoiding an environmental pollution caused by oil mist, avoiding harming the physical health of an employee, and saving energy. The oil-mist-free and high-speed electric spindle of the present invention includes a shell, a stator and a rotator. Using a bearing provided on a bearing providing position of the shell, the stator and the rotor are separated by a gap and freely rotatably supported on the shell. A labyrinth sealing structure, which covers the bearing providing position, is provided on an outside of the bearing providing position. The labyrinth sealing structure has a channel which opens to an atmosphere. And a through-hole is provided on the shell, wherein one end of the through-hole opens to the shelter, and the other end of the through-hole is connected with the channel of the labyrinth sealing structure. And the bearing providing position is filled with a lubricating grease which is a total synthesis grease of polyurea that is mainly composed of a base oil and contains a nanometer anti-wear additive. Popularizing the electric spindle of the present invention is expected to save approximately 3 billion kilowatt-hours of electricity and over 60 thousand tons of high quality lubricating grease per year. 110-. (canceled)11. An oil-mist-free and high-speed electric spindle , comprising a shell , a stator and a rotor , wherein said stator and said rotor are received by a shelter which is formed by an inner surface of said shell , wherein by using a bearing provided on a bearing providing position of said shell , said stator and said rotor are separated by a gap and freely rotatably supported on said shell , wherein a labyrinth sealing structure , which covers said bearing providing position , is provided on an outside of said bearing providing position , wherein said labyrinth sealing structure has a channel which opens to an atmosphere , wherein a ...

Greasable idler pulley and related kit and method

Greasable idler pulleys and related kits and methods are disclosed. The greasable idler pulley has a rotating body, a bearing, to enable the rotating body to rotate with respect to a shaft, and grease fitting defined through the rotating body. The rotating body may have a bearing seal cap having an orifice and a rotator. The grease fitting may be in fluid communication with the bearing through the orifice in the bearing seal cap. Kits are also contemplated, such as a kit for retrofitting a non-regreasable idler pulley including a rotator to a regreasable idler pulley. Methods may include methods of producing a regreasable idler pulley from a non-regreasable idler pulley.

GREASING MECHANISM FOR MAIN ELECTRIC MOTOR OF VEHICLE

A greasing mechanism for a main electric motor of a vehicle includes a greasing tube that is filled with a semi-solid lubricant and has an indicator member within the greasing tube. The indicator member has a specific gravity that is smaller than that of the semi-solid lubricant and moves in a greasing direction from a first position due to pressure of the semi-solid lubricant during greasing. The greasing mechanism includes a retaining part that has a shape that stops at a second position the indicator member moving during greasing. An indicator window arranged in a portion of the greasing tube including the second position is formed from a component that is at least partially transparent to visible light.

MONITORING THE FILLING LEVEL OF LUBRICANT IN A BEARING

A method of monitoring the amount of lubricant inside a bearing of a wind turbine is provided. The bearing includes a lubricant for reducing wear and fatigue of the bearing, a seal for minimizing the amount of lubricant which is leaking out of the bearing, a ventilation device with at least one pressure compensation hole for enabling a pressure compensation between the sealed bearing and the ambient, and a lubricant drain hole for enabling lubricant to exit the bearing in a controlled manner. The method includes the steps of blowing a compressed medium through the pressure compensation hole into the bearing; measuring the pressure inside the bearing; and determining the amount of lubricant inside the bearing based on the measured pressure. 1. A method of monitoring the amount of lubricant inside a bearing of a wind turbine , wherein the bearing comprises:a lubricant for reducing wear and fatigue of the bearing,a seal for minimizing the amount of lubricant which is leaking out of the bearing,a ventilation device with at least one pressure compensation hole for enabling a pressure compensation between the sealed bearing and the ambient, anda lubricant drain hole for enabling lubricant to exit the bearing in a controlled manner, and wherein the method comprises the steps ofblowing into the bearing a predetermined amount of a compressed medium through the pressure compensation hole,measuring the pressure inside the bearing, anddetermining the amount of lubricant inside the bearing based on the measured pressure.2. The method according to claim 1 , wherein the method comprises the further step ofcalculating a pressure increase inside the bearing, which is generated by blowing the compressed medium into the bearing, by subtracting an initial pressure of the bearing from the measured pressure.3. The method according to claim 1 , wherein the amount of lubricant inside the bearing is determined by correlatingthe maximum pressure increase withthe amount of lubricant inside ...

CAPACITANCE MEASUREMENT IN A BEARING HOUSING

A bearing arrangement is provided having a bearing mounted in a housing, wherein a grease lubricant is present within the housing for lubricating the bearing. The arrangement further provides a support frame made of an electrically insulating material, arranged in a space within the housing between the bearing and a housing seal. The support frame is provided with at least one electrode pair having first and second electrodes arranged such that a portion of the grease lubricant is located between the first and second electrodes. A capacitance meter is provided for measuring a capacitance between the first and second electrodes. The first and second electrodes of the at least one electrode pair are provided on a radially oriented surface of the support frame, which surface is arranged such that the grease is able to move in an axial direction over the surface. 1. A bearing arrangement comprising:a bearing mounted in a housing, the bearing having an inner ring an outer ring and a plurality of rolling elements arranged between the inner and outer rings;a grease lubricant provided within the housing to lubricate the bearing;a support frame arranged in a space within the housing between the bearing and a housing seal, the support frame being provided with at least one electrode pair having first and second electrodes that are arranged such that a portion of the grease lubricant is located between the first and second electrodes; anda capacitance meter configured to measure a capacitance between the first and second electrodes, whereinthe first and second electrodes of the at least one electrode pair are provided on a radially oriented surface of the support frame.2. The bearing arrangement according to claim 1 , wherein the support frame provides at least one of a ring and ring segment with a radial height that is substantially smaller than a radial gap between an inner surface of the housing and a shaft that is supported in the housing by the bearing.3. The bearing ...

HIGH-SPEED BALL BEARING AND BALL RETAINER

A high-speed ball bearing includes an outer ring, an inner ring, a plurality of balls, and a ball retainer. The ball retainer includes a plurality of pocket holes for arranging a plurality of balls, an inner circumferential surface of each of the pocket holes have a spherical surface is coaxial to the ball. A gap between an outer circumferential surface of the ball retainer and an inner circumferential surface of the ring is defined as a first gap, and a gap between the pocket hole and the corresponding ball is defined as a second gap. The first gap and the second gap have the following relationship: W=(W−r′)×A. 1. A high-speed ball bearing , comprising:an outer ring having an outer ring track surface arranged on an inner circumferential surface of the outer ring, the inner circumferential surface having an outer ring shoulder arranged around a central axis of the ball bearing, wherein a diameter of an inner circumferential surface of the outer ring shoulder is smaller than a diameter of an inner circumferential surface of the outer ring track surface;an inner ring having an inner ring track surface arranged on an outer circumferential surface of the inner ring;a plurality of balls rollably disposed between the outer ring track surface and the inner ring track surface, wherein the balls are spaced apart from each other, and each two of the balls arranged adjacent to each other have the same angle with respect to the central axis of the ball bearing; anda ball retainer arranged between the inner circumferential surface of the outer ring and the outer circumferential surface of the inner ring, the ball retainer including a first ring portion and a second ring portion, wherein the first ring portion and the second ring portion are arranged around the central axis of the ball bearing, a diameter of an outer circumferential surface of the first ring portion is larger than a diameter of an outer circumferential surface of the second ring portion, and a diameter of an ...

Rolling bearing and wind turbine comprising a rolling bearing

Provided is a rolling bearing, in particular for a wind turbine, including an inner race, an outer race, a plurality of rolling elements arranged between the inner race and the outer race, and lubricant for lubricating the rolling bearing, wherein the inner race and the outer race each have a bearing surface with a contact zone in contact with the rolling elements, the bearing surface of at least one of the inner race and the outer race has a portion having a lipophobic surface for repelling the lubricant. The suggested rolling bearing has the advantage that the lubricant in the bearing does not stick to the portion, where it is useless for lubricating the bearing. Therefore, the rolling bearing can have a better lubrication, since the lubricant is directed towards the contact zone, where contact between the races and the rolling elements takes place.

BEARING ASSEMBLY

A bearing assembly includes an inner ring and an outer ring that define a bearing interior between them and either the inner ring or the outer ring is fixed. When the inner ring is fixed, the inner ring includes at least one substantially radial through opening and when the outer ring is fixed, the outer ring includes at least one substantially axial and/or radial through opening, or at least one substantially axial and/or radial through opening is provided on a ring fixedly connected to the outer ring. The through opening is disposed between a 9 o'clock position and a 3 o'clock position on the inner ring when the inner ring is fixed or on the outer ring when the outer ring is fixed. 1. A bearing assembly comprising:an inner ring and an outer ring that define a bearing interior between them,wherein either the inner ring or the outer ring is fixed,wherein when the inner ring is fixed, the inner ring includes at least one substantially radial through opening and when the outer ring is fixed, the outer ring includes at least one substantially axial and/or radial through opening, or at least one substantially axial and/or radial through opening is provided on a ring fixedly connected to the outer ring, andwherein the through opening is disposed between a 9 o'clock position and a 3 o'clock position on the inner ring when the inner ring is fixed or on the outer ring when the outer ring is fixed.2. The bearing assembly according to claim 1 , wherein the through opening is disposed between a 10 o'clock position and a 2 o'clock position.3. The bearing assembly according to claim 1 , wherein the through opening has a bore of greater than 250 mm.4. The bearing assembly according to claim 1 , wherein the through opening has a bore of greater than 350 mm.5. The bearing assembly according to claim 1 ,wherein when the inner ring is fixed, the at least one substantially radial through opening in the inner ring comprises a plurality of substantially radial through openings in the ...

GREASE TOOL FOR REPACKING DUAL ANGULAR CONTACT BEARING WITH GREASE, AND METHOD OF USING SAME

A method for greasing a dual angular contact bearing where the grease tool is fabricated from a single unitary piece of material. The grease tool comprises a cylindrical hub, a flange supported adjacent only one end of the cylindrical hub, and a grease fitting attached to the grease tool to facilitate a supply of grease thereto. During use, a pair of spaced apart O-rings, accommodated by an exterior surface of the cylindrical hub, form a pair of grease seals with an inwardly facing surface of an inner race of the dual angular contact bearing. A supply passage conveys the supplied grease from the grease fitting to a grease outlet(s) located in an exterior cylindrical surface of the grease tool, between the pair of O-rings, for conveyance of the supplied grease radially to the inner race of the dual angular contact bearing and facilitate repacking thereof. 1. A method of greasing a bearing chamber of a dual angular contact bearing with a grease tool which is fabricated from a single unitary piece of material , the method comprising:forming the grease tool from a cylindrical hub having an exterior cylindrical surface;accommodating a pair of spaced apart O-rings on the exterior surface of the cylindrical hub, and forming at least one grease outlet in the exterior surface of the cylindrical hub between the pair of O-rings;forming a grease supply passage through a portion of the cylindrical hub to convey supplied grease from a trailing surface of the grease tool to at least one grease outlet formed in the exterior cylindrical surface;attaching a grease fitting to trailing end of the grease supply passage to facilitate supplying grease thereto;inserting the grease tool into a pair of inner races of the dual angular contact bearing to be greased such that each of the O-rings mates with a respective inwardly facing surface of one of the pair of inner races to form a pair of spaced apart grease seals;connecting a grease dispenser to the grease fitting;conveying grease from ...

BEARING WITH MINIMIZED LEAKAGE OF LUBRICANT

A bearing of a wind turbine, wherein the bearing is lubricated with a lubricant for reducing wear and fatigue of the bearing, the bearing is sealed such that the amount of lubricant which is leaking out of the bearing is minimized, is provided. The bearing includes a ventilation device with at least one pressure compensation hole for enabling a pressure compensation between the sealed bearing and the ambient. The ventilation device further includes a compressor unit, which is connected with the pressure compensation hole. Thus, a compressed medium can be selectively blown through the pressure compensation hole to ensure that the pressure compensation hole remains substantially unobstructed such that overpressure within the bearing compared to the ambient is minimized and leakage of lubricant out of the bearing is reduced. A wind turbine including such bearing and an associated method is also provided. 1. A bearing of a wind turbine , wherein the bearing is lubricated with a lubricant for reducing wear and fatigue of the bearing , the bearing being sealed such that an amount of the lubricant which is leaking out of the bearing is minimized , the bearing comprising:a ventilation device with at least one pressure compensation hole for enabling a pressure compensation between the bearing and the ambient,wherein the ventilation device further comprises a compressor unit, which is connected with the at least one pressure compensation hole such that a compressed medium can be selectively blown through the at least one pressure compensation hole to ensure that the at least one pressure compensation hole remains substantially unobstructed, thus overpressure within the bearing compared to the ambient is minimized and leakage of the lubricant out of the bearing is reduced.2. The bearing according to claim 1 , wherein the bearing is a main bearing of the wind turbine suitable for supporting a rotor of the wind turbine.3. The bearing according to claim 1 , wherein the bearing is ...

ROLLING BEARING AND GREASE COMPOSITION USED THEREIN

A rolling bearing including a plurality of rolling elements rollably provided between an inner ring and an outer ring and having enclosed therein a grease composition obtained by adding three kinds of antirust agents which are a carboxylic acid-based antirust agent, a carboxylate-based antirust agent and an amine-based antirust agent, to a base oil which contains at least one kind of a mineral oil and a synthetic oil and has a kinematic viscosity of 200 to 400 mm/s at 40° C., the grease composition having a penetration of 300 to 400 and a yield stress of 150 Pa or less at 40° C.

ROLLING BEARING AND ITS PACKAGING METHOD

To provide a rolling bearing in which a favorable antirust performance can be obtained while reducing an amount of antirust oil than before, after removing chloride ions and sulfate ions from the entire surface of the bearing, antirust oil is provided to adhere thereto at an average film thickness of 4.5 μm to 10 μm, and the entire bearing is covered with a volatile corrosion inhibitor film such that a space between the volatile corrosion inhibitor film and the bearing is kept in a pressure-reduced condition. 1. A rolling bearing comprising an inner ring , an outer ring , and a plurality of rolling elements retained between the inner ring and the outer ring by a retainer in a rollable manner ,wherein antirust oil is provided to adhere, at an average film thickness of 4.5 μm to 10 μm, to an entire surface of the bearing from which chloride ions and sulfate ions are removed, the entire bearing is covered with a volatile corrosion inhibitor film, and a space between the volatile corrosion inhibitor film and the bearing is kept in a pressure-reduced condition.2. The rolling bearing according to claim 1 , wherein an amount of residual chloride ions adhered to the rolling bearing per unit area is 0.2 ng/mmto 10 ng·mm.3. The rolling bearing according to claim 1 , wherein the entire bearing is covered with the volatile corrosion inhibitor film and the space between the volatile corrosion inhibitor film and the bearing is kept in the pressure-reduced condition claim 1 , in a state in which a bearing interior space defined by the inner ring claim 1 , the outer ring claim 1 , and the rolling elements is charged with grease.4. A method of packaging a rolling bearing after assembling the rolling bearing from bearing components claim 1 , the method comprising:after removing chloride ions and sulfate ions from an entire surface of the bearing, providing antirust oil to adhere thereto at an average film thickness of 4.5 μm to 10 μm, and covering the entire bearing with a volatile ...

ROLLING BEARING AND SENSOR ASSEMBLY INCLUDING THE SAME

A rolling bearing including at least two bearing rings and one set of rolling elements arranged in a space between the bearing rings. The space between the bearing rings is filled with grease. At least one of the bearing rings and/or the rolling elements is made of steel. The bearing can be provided with at least one electrode made from a non-ferrous material, wherein at least one surface of the electrode is in contact with the grease. 1. A rolling bearing including:at least two bearing rings;one set of rolling elements arranged in a space between the bearing rings; andat least one electrode made from a non-ferrous material,wherein the space between the bearing rings is filled with grease,wherein at least one of the bearing rings is made of a ferrous material,wherein at least one surface of the electrode is in contact with the grease.2. The rolling bearing according to claim 1 , wherein the one surface of the electrode faces the rolling elements with a gap filled with grease therebetween.3. The rolling bearing according to claim 1 , at least one of the bearing rings further includes a mechanism for connecting a sensor wire for applying a voltage between the bearing ring and the electrode.4. The rolling bearing according to claim 1 , wherein the electrode is made of copper.5. The rolling bearing according to claim 1 , further comprising a seal claim 1 , wherein the electrode is integrated in the seal.6. The rolling bearing according to claim 5 , wherein the electrode is formed as a conductive elastomer ring.7. A sensor assembly including: at least two bearing rings;', 'one set of rolling elements arranged in a space between the bearing rings; and', 'at least one electrode made from a non-ferrous material,', 'wherein the space between the bearing rings is filled with grease,', 'wherein at least one of the bearing rings is made of a ferrous material,', 'wherein at least one surface of the electrode is in contact with the grease; and, 'a rolling bearing comprisingan ...

ROLLING BEARING

An inner ring includes: a pair of shoulder outer peripheral surfaces on first and second axial sides of a raceway surface of the inner ring in contact with balls; seal grooves disposed in first and second axial ends of the inner ring and defining labyrinth clearances with lips; and edges disposed on the first and second axial sides. Each of the edges is configured to cause grease flowing along an associated one of the shoulder outer peripheral surfaces to leave the shoulder outer peripheral surface in the direction of an extension thereof. Each of the lips includes a lip oblique surface functioning as a guide surface to guide the grease that has left the edge not to a radially inner region of the bearing but to a radially outer region of the bearing. 2. The rolling bearing according to claim 1 , whereinthe shoulder outer peripheral surfaces on the first and second axial sides each have a cylindrical shape extending along a virtual cylindrical plane, with a center line of the bearing serving as a center of the virtual cylindrical plane,the seal grooves on the first and second axial sides each include an annular lateral surface extending along a virtual plane intersecting with the bearing center line, an annular lip lateral surface facing the annular lateral surface of an associated one of the seal grooves, and', 'a lip oblique surface that increases in diameter as the lip oblique surface extends axially outward from a radially outer end of the lip lateral surface, the radially outer end serving as a starting point of the lip oblique surface, the lip oblique surface functioning as the guide surface, and, 'the lips on the first and second axial sides each includethe starting point on each of the first and second axial sides in a cross section including the bearing center line is located on the extension of an associated one of the shoulder outer peripheral surfaces or radially inward of the extension of an associated one of the shoulder outer peripheral surfaces.3. The ...

WHEEL BEARING ARRANGEMENT FOR A VEHICLE

A wheel bearing arrangement for a vehicle, having rotatable and statically fixed components, and at least two rolling body bearings arranged radially between the rotatable and statically fixed components for rotatably mounting the rotatable component. The at least two rolling body bearings have in each case an inner ring, an outer ring, and a rolling body row arranged therebetween. A spacer sleeve is arranged at end sides of the respective inner rings for axially securing the two inner rings. A respective securing ring is arranged fixedly on the respective inner rings so as to rotate therewith. The securing rings each have a substantially axially configured lug with a respective radial embossment arranged in a respective groove configured on an outer circumferential face of the spacer sleeve, in order to connect the respective inner rings axially to the spacer sleeve via the respective securing rings. 1. A wheel bearing arrangement for a vehicle , comprising a rotatable component and a statically fixed component , and at least two rolling body bearings arranged radially between the rotatable component and the statically fixed component for rotatably mounting the rotatable component;the at least two rolling body bearings each including: an inner ring, an outer ring, and a rolling body row arranged therebetween;a spacer sleeve arranged between end sides of the respective inner rings for axially securing the two inner rings, the spacer sleeve including grooves located on an outer circumferential face thereof;securing rings, one of which is arranged fixedly on each of the respective inner rings so as to rotate therewith, the securing rings each including a substantially axially configured lug with a respective radial embossment, the radial embossment being arranged in a respective one of the grooves located on the outer circumferential face of the spacer sleeve, in order to connect each of the respective inner rings axially to the spacer sleeve via the respective ...

Pneumatic system for inflating a wheel, integrated to a driven axle

The invention relates to a system for pneumatically powering a wheel comprising a bearing support (), a shaft () comprising a hub-forming end () which extends radially (Y), at least one set of rolling bearings (), wherein the system further comprises a chamber (C) formed by the hub-forming end (), the bearing support (), a rolling bearing seal () and a chamber seal (), a primary channel () crossing the bearing support () and opening into the chamber (C), a secondary channel () crossing the hub-forming end () and opening into the chamber (C), wherein seals seal the cavity (C) in order to let air pass from the primary channel to the secondary channel via the cavity (C). 22122111011101022. The system according to claim 1 , wherein the hub-forming end () comprises a longitudinal extension () which will face an end () of the bearing support () claim 1 , said end () of the bearing support () thus being radially located between the shaft () and the longitudinal extension ().350111022. The system according to claim 2 , wherein the chamber seal () is radially positioned between the end () of the bearing support () and the longitudinal extension ().44050. The system according to or claim 2 , wherein the rolling bearing seal () and the chamber seal () are located in a same radial plane.560611110. The system according to any one of to claim 2 , wherein the primary channel () comprises a rectilinear channel portion () longitudinally extending in the end () of the bearing support () and opening into the chamber (C).66361. The system according to claim 5 , comprising a second channel portion () extending parallel to the channel portion () claim 5 , so as to have portions with smaller sections.77021. The system according to any one of the preceding claims claim 5 , wherein the secondary channel () longitudinally crosses in the hub-forming end ().821237023. The system according to any one of the preceding claims claim 5 , wherein the hub-forming end () comprises an attachment area ...

GREASE TOOL FOR REPACKING DUAL ANGULAR CONTACT BEARING WITH GREASE, AND METHOD OF USING SAME

A grease tool and method for greasing a dual angular contact bearing where the grease tool is fabricated from a single unitary piece of material. The grease tool comprises a cylindrical hub, a flange supported adjacent only one end of the cylindrical hub, and a grease fitting attached to the grease tool to facilitate a supply of grease thereto. During use, a pair of spaced apart O-rings, accommodated by an exterior surface of the cylindrical hub, form a pair of grease seals with an inwardly facing surface of an inner race of the dual angular contact bearing. A supply passage conveys the supplied grease from the grease fitting to a grease outlet(s) located in an exterior cylindrical surface of the grease tool, between the pair of O-rings, for conveyance of the supplied grease radially to the inner race of the dual angular contact bearing and facilitate repacking thereof. 1. A grease tool for mating with at least one inner race of a dual angular contact bearing and facilitate greasing of the dual angular contact bearing , and the grease tool being fabricated from a single unitary piece of material and comprising:a cylindrical hub having an exterior cylindrical surface;a flange being supported adjacent one end of the cylindrical hub for limiting insertion of the grease tool into the at least one inner race of the dual angular contact bearing;a grease fitting being attached to the grease tool to facilitate supplying grease thereto;the grease fitting being coupled to a supply passage for conveying supplied grease to at least one grease outlet formed in the exterior cylindrical surface;a pair of spaced apart O-rings being accommodated by an exterior surface of the cylindrical hub and the at least one grease outlet being located in the exterior surface of the cylindrical hub between the pair of O-rings; andthe pair of spaced apart O-rings facilitate forming a pair of spaced apart grease seals, when the grease tool engages with an inwardly facing surface of the at least one ...

Strain Wave Gear System

A strain wave gear system () includes first and second sets of ball bearings () located intermediate a flange () and a retainer plate () rotatable with an output () and a radially oriented flat disc () of the input including strain relief (). Strain relief () is a helical slot in a coupling () located radially within the wave generator () and the ring gear (). The ring gear () is sealed by a sealing system including sealant () forced by a protrusion () of the cap () entering into a cavity () through a channel () into a relief volume () of the housing (). The bearing () rotatably mounting the housing () to the output () is lubricated by a lubricating system including plungers () threadably received in axial bores () intersecting with radial bores () in communication with radial holes () of the bearing (). 1. Strain wave gear system comprising , in combination: an input including a radially extending disc having first and second axially spaced faces; a ring gear; a wave generator of a non-circular shape and connected to and rotatable with the input; an output; a flexspline connected to and rotatable with the output , with the flexspline in gearing engagement with the ring gear and located intermediate the ring gear and the wave generator; first and second radially extending and axially spaced races connected to the output; a first bearing located intermediate the first face and the first race; and a second bearing located intermediate the second face and the second race.2. The strain wave gear system as recited in claim 1 , wherein the input further includes a strain relief.3. The strain wave gear system as recited in claim 2 , wherein the input is a hub; and wherein the strain relief is a slot in the hub and in a helical shape to compensate for parallel and angular misalignment of the input.4. The strain wave gear system as recited in claim 3 , wherein the input further includes a collet fixed intermediate the hub and the radially extending disc claim 3 , with the ...

Sealing device

The purpose of the present invention is to provide a sealing device with a structure from which grease, which has been coated on the inner circumferential surface of an end face lip, does not tend to be scattered even if a centrifugal force acts on the sealing device. The present invention provides a sealing device for sealing foreign matter that is outside of a machine so that the foreign matter does not penetrate into the machine, the sealing device having an end face lip that slidably contacts an end face of a rotating-side part and lubricating grease that is coated on the inner circumferential surface of the lip. In the sealing device, the amount of grease coated on the distal edge of the lip is set to be less than the amount of grease coated on the lip base. Grease is coated over the entire inner circumferential surface of the lip and the thickness of the grease coated on the distal edge of the lip is set to be smaller than the thickness of the grease coated on the lip base. Also, grease is coated on a portion of the circumference of the inner circumferential surface of the lip and the coating thickness and/or the circumferential direction coating width of the grease coated on the distal edge of the lip is set to be smaller than the coating thickness or circumferential direction width of the grease coated on the lip base.

SEALED BEARING ASSEMBLY

Disclosed is a sealed bearing arrangement that provides at least a bearing with an outer ring and an inner ring, which are rotatable to each other and form a rolling chamber between each other, in which a set of rolling elements. A lubricant is encompassed in the rolling chamber and the rolling chamber is sealed off from an environment by at least one sealing element. The inner ring, the outer ring and/or the sealing element includes at least one opening for providing a fluid passage through the sealing element. The bearing is arranged in a housing that is adapted to seal off the bearing from an outside environment. A lubricant is encompassed inside the housing. The housing including the at least one opening for providing a fluid passage from the inside of the housing to the outside. The opening is fluid tightly connected to an oxygen removing element and/or to a gas tank, which provides an oxygen poor to free fluid flow to the rolling chamber.

Sealing device

密封装置に遠心力が作用しても、端面リップの内周面に塗布したグリースが飛散しにくい構造の密封装置を提供する。この目的を達成するため、機外の異物が機内に侵入しないように異物をシールする密封装置であって、回転側部品の端面部に摺動可能に接触する端面リップを有し、リップ内周面に潤滑用グリースを塗布する密封装置において、リップ先端部に塗布するグリースの塗布量をリップ根元部に塗布するグリースの塗布量よりも少量に設定する。リップ内周面の全周に亙ってグリースを塗布し、リップ先端部に塗布するグリースの塗布厚みをリップ根元部に塗布するグリースの塗布厚みよりも小さく設定する。また、リップ内周面の円周上一部にグリースを塗布し、リップ先端部に塗布するグリースの塗布厚みおよび円周方向塗布幅の何れか一方または双方をリップ根元部に塗布するグリースの塗布厚み又は円周方向幅よりも小さく設定する。 Provided is a sealing device having a structure in which grease applied to an inner peripheral surface of an end face lip is hardly scattered even when centrifugal force acts on the sealing device. In order to achieve this object, a sealing device for sealing foreign matter so that foreign matter outside the machine does not enter the machine has an end face lip that slidably contacts the end face portion of the rotating part, and has a lip inner periphery. In a sealing device for applying lubricating grease to the surface, the amount of grease applied to the lip tip is set to be smaller than the amount of grease applied to the lip root. Grease is applied over the entire circumference of the inner peripheral surface of the lip, and the thickness of the grease applied to the lip tip is set smaller than the thickness of the grease applied to the lip root. Also, apply grease to a part of the circumference of the inner peripheral surface of the lip, and apply either or both of the grease thickness applied to the tip of the lip and the circumferential application width to the lip root. Set smaller than thickness or circumferential width.

Узел подшипника качения

1. Узел подшипника качения содержит: внутреннее кольцо, имеющее поверхность дорожки качения на его наружной периферии;внутреннее проставочное кольцо, которое находится в контакте с торцевой стороной внутреннего кольца и вращается совместно с внутренним кольцом;наружное кольцо, имеющее поверхность дорожки качения на его внутренней периферии;некоторое количество элементов качения, расположенных между поверхностью дорожки качения внутреннего кольца и поверхностью дорожки качения наружного кольца; исепаратор, расположенный между внутренним кольцом и наружным кольцом и имеющий некоторое количество карманов для размещения элементов качения,в котором используется центробежная сила для подачи консистентной смазки из внутреннего проставочного кольца к сепаратору, и радиальный канал, проходящий со стороны внутреннего диаметра к стороне наружного диаметра сепаратора, предусмотрен между внутренней поверхностью стенки каждого из карманов и каждого из элементов качения для использования радиального канала в качестве резервуара консистентной смазки, а также канала консистентной смазки для обеспечения прилипания консистентной смазки к элементу качения и ее перемещения на поверхность дорожки качения наружного кольца.2. Узел подшипника качения по п.1, в котором радиальный канал выполнен из сегментообразного пространства между каждым из дугообразных углублений, образованных в четырех углах кармана, и элементом качения, и дугообразного пространства, образованного между первой группой участков внутренней поверхности стенки кармана и элементом качения, при этом участки первой группы участков внутренней по� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F16C 33/38 (11) (13) 2014 105 282 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014105282/11, 18.06.2012 (71) Заявитель(и): НТН КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: 13.07.2011 JP 2011-154901 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.02. ...

Rolling bearing assembly

FIELD: machine building. SUBSTANCE: invention relates to assemblies of rolling bearings and, in particular, to design of separator, guide elements for assembly of rolling bearing, wherein structure is adapted to feed grease from internal distance ring to separator. Assembly of rolling bearing includes inner ring (2) with surface (2a) raceways on its outer periphery, internal spacer ring (3), which is in contact with end side of ring (2) and rotates together with it, external ring (4) with surface (4a) raceways on its internal periphery, certain number of rolling elements (6), located between surface (2a) and surface (4a), and separator (8) between ring (2) and ring (4) and having certain number of pockets (10) for arrangement of rolling elements (6) using centrifugal force to feed grease from ring (3) to separator (8). Radial channels passing from side of inner diameter to side of outer diameter of the separator (8), are arranged between sections of pocket wall inner surface, facing each other in axial direction of separator (8), and element rolling (6) for use as radial channels of grease lubricant tank, as well as grease lubricant channel to allow sticking of consistent lubricant to element (6) and its movement on surface (4a). Radial channels are made of arc-shaped spaces between rolling element (6) and sections of pocket wall inner surface and segment-like spaces between rolling element (6) and arc-like recesses in four corners of pocket. EFFECT: technical result is creation of rolling bearing assembly with separator, guide rolling elements, which design facilitates supply of consistent lubricant coming from internal distance ring to surface of outer ring roller path. 20 cl, 23 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 585 125 C2 (51) МПК F16C 19/16 (2006.01) F16C 19/54 (2006.01) F16C 33/38 (2006.01) F16C 33/66 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014105282/11, 18.06.2012 (24) ...

rotary joint

Drehverbindung, umfassend: a) einen einteiligen, im wesentlichen rotationssymmetrischen Ringkörper (1), b) wenigstens zwei weitere, im wesentlichen rotationssymmetrische Ringkörper (2, 4, 8), die lösbar miteinander verbunden sind, c) eine radiale Lagerung des einteiligen Ringkörpers (1) an wenigstens einem der weiteren Ringkörper (2, 4, 8) um eine gemeinsame Rotationsachse (R), d) eine axiale Lagerung des einteiligen Ringkörpers (1) an wenigstens einem der weiteren Ringkörper (2, 4, 8) in einer Ebene, die sich vorzugsweise genau senkrecht zu der Rotationsachse (R) erstreckt, e) Lagerflächen, welche die radiale Lagerung des einteiligen Ringkörpers (1) an wenigstens einem der weiteren Ringkörper (2, 4, 8) bewirken, f) Lagerflächen, welche die axiale Lagerung des einteiligen Ringkörpers (1) an wenigstens einem der weiteren Ringkörper (2, 4, 8) bewirken, dadurch gekennzeichnet, dass g) die Lagerflächen, welche die radiale Lagerung des einteiligen Ringkörpers (1) an wenigstens einem der weiteren Ringkörper (2, 4, 8) bewirken,... Rotary joint, comprising: a) a one-piece, substantially rotationally symmetrical ring body (1), b) at least two further, substantially rotationally symmetrical annular bodies (2, 4, 8) which are releasably connected to one another, c) a radial bearing of the one-piece annular body (1) on at least one of the further annular bodies (2, 4, 8) about a common axis of rotation (R), d) an axial bearing of the one-piece annular body (1) on at least one of the further annular bodies (2, 4, 8) in a plane which preferably extends exactly perpendicular to the axis of rotation (R), e) bearing surfaces which effect the radial mounting of the one-piece annular body (1) on at least one of the further annular bodies (2, 4, 8), f) bearing surfaces, which effect the axial mounting of the one-piece annular body (1) on at least one of the further annular bodies (2, 4, 8), characterized in that g) the bearing surfaces, which cause the radial mounting of the one-piece ...

Linear bearing element

베어링요소가 가이드롤러(5)의 주행면(4)에 지지되며, 양단면의 적어도 일방으로 베어링요소(1)내로 윤활유를 가압하기 위해 단부영역에서 주행면(4)에 접촉하는 와이퍼(7)를 구비하는 선형와이퍼에 있어서, 본 발명에 따르면, 베어링요소(1)에 또는 와이퍼에 윤활유용의 적어도 하나의 도우징밸브(13)가 배치되며, 상기 도우징밸브가 유입측에서 공급도관(9)에 접속되는 한편 유출 측에서 베어링영역(2) 또는 주행면에 접속된다. 이에따른 구성을 기초로 구름 베어링 내에서의 오염물의 진입을 저지하는 한편 규정된 최소량의 윤활유를 누출시키는 베어링요소(1)내의 주행면(4) 및 구름베어링영역에 공급될 수 있는 콤팩트한 와이어장치가 획득된다. The wiper 7 is supported on the running surface 4 of the guide roller 5 and in contact with the running surface 4 in the end region for pressurizing lubricant into the bearing element 1 in at least one of the two end surfaces. In the linear wiper having, in accordance with the present invention, at least one dosing valve (13) for lubricating oil is arranged on the bearing element (1) or on the wiper, the dosing valve being supplied at the inlet side with a supply conduit (9). Is connected to the bearing area 2 or the running surface on the outflow side. Based on this configuration, a compact wire device which can be supplied to the running surface 4 and the rolling bearing area in the bearing element 1 which prevents the entry of contaminants in the rolling bearing while leaking the specified minimum amount of lubricant. Is obtained.

Rolling bearing system

本发明提供一种滚动轴承装置。将用于对内圈的轨道槽供给润滑油的供油单元固定于外圈。在供油单元形成用于供给来自外部的电力的第一以及第二径向分离电极。将第一以及第二径向分离电极分别以向外部露出的状态固定于相对于微型泵静止的容器的外表面。以相对于第二径向分离电极隔开间隔的方式配置第一径向分离电极。

Bearing assembly with contaminant sensor

本发明涉及一种组件(100)，包括轴承、润滑剂和用于确定润滑剂中污染物的水平的污染物传感器(150)。污染物传感器包括：电磁波发生器，其用于产生频率高于1GHz的电磁信号；和电磁感测元件，其被布置成与润滑剂接触。电磁感测元件接收所产生的电磁信号并发送信号特性响应于润滑剂的复相对介电常数的实部和虚部的输出信号。输出信号被电磁测量设备接收，电磁测量设备测量分别表示润滑剂的复相对介电常数的实部和虚部的输出信号的第一参数和第二参数。根据本发明，电磁测量设备被配置成仅基于测量的第一参数确定润滑剂中的水污染物的水平，并且基于测量的第一参数和第二参数两者确定油脂中的金属颗粒污染物的水平。

A bearing housing structure

베어링 하우징 구조물(101)은 베어링(117)을 지지하기 위한 지지부(102), 윤활 그리스를 받기 위한 리셉션 인터페이스(103), 윤활 그리스를 베어링의 축방향으로 서로 대향하는 베어링의 양쪽 면으로 유도하기 위한 그리스 채널을 포함한다. 상기 베어링 하우징 구조물은, 윤활 그리스가 상기 베어링의 양측으로부터 베어링을 빠져나오도록 하기 위한 출구 도관(107, 108) 및 상기 하나 이상의 출구 도관을 통하여 베어링을 빠져나가는 윤활 그리스를 저장하기 위한 그리스 저장원(109)을 포함한다. 상기 베어링 하우징 구조물은 다른 위치에서 작동가능함으로써, 상기 베어링의 축 방향은 수평, 수직 또는 경사질 수 있다. The bearing housing structure 101 includes a support 102 for supporting the bearing 117, a reception interface 103 for receiving lubricating grease, and for guiding the lubricating grease to both sides of the bearing facing each other in the axial direction of the bearing. Includes the Greek channel. The bearing housing structure comprises an outlet conduit (107, 108) for allowing lubricating grease to exit the bearing from both sides of the bearing, and a grease storage source for storing lubricating grease exiting the bearing through the at least one outlet conduit ( 109). The bearing housing structure is operable in different positions, so that the axial direction of the bearing can be horizontal, vertical or inclined.

Cross Roller Bearing Of Long Life Span

본 발명은 내경측에 외륜궤도(111)가 형성된 외륜(110)과, 상기 외륜(110)의 내측에 위치하며 외경측에 상기 외륜궤도(111)와 함께 궤도부를 형성하는 내륜궤도(121)가 형성된 내륜(120)과, 상기 궤도부를 따라 지그재그로 정렬된 복수의 전동체(150)를 포함하며; 상기 외륜궤도(111)에는 그 중심부에 오목하게 형성된 외륜궤도홈(113)이 원주 방향을 따라 연장되어 형성되고, 원주 방향을 따라 이격되어 그리스가 수용되는 복수의 외륜수용부(115)가 형성되며; 상기 외륜수용부(115)는 내측 단부가 외륜궤도홈(113)으로 연통되고 외측은 외륜외경면으로 개구되며, 외륜외경면으로 개구된 개구단부를 막는 외륜커버(130)가 더 포함된 장수명 크로스 롤러 베어링(100)에 관한 것이다.

Automobile engine accessory pulley bearing

자동차의 엔진보조장치 풀리용 베어링은 외륜(3)과, 내륜(5)과, 복열의 구슬(7)(8)과, 볼 리테이너(9)(10)와, 각 볼 리테이너의 배면측에 볼 리테이너(9)(10)와 간격을 마련하여 배치하며, 그리스수용 공간을 형성하는 씨일(11)(12)을 갖고 있다. 자동차의 엔진보조장치 풀리용 베어링은 베어링외형치수가 직경 65mm이하이고 또한 베어링폭 치수가 내경치수의 45%이하이며, 구슬(7)(8)의 직경을 4mm로 하고 또한 볼 리테이너(9)(10)의 배면(19)과 씨일(11)(12)의 내면(20)과의 거리(L)를 구슬 직경(Da)의 13%이상으로 한다. The bearing for the engine auxiliary device pulley of an automobile has an outer ring (3), an inner ring (5), double rows of beads (7) (8), ball retainers (9) and (10), and a ball retainer on the rear side of each ball retainer. It has a seal 11 and 12 which arrange | positions at intervals with the retainers 9 and 10, and forms the grease accommodation space. Bearings for engine auxiliary pulleys of automobiles have a bearing outer dimension of 65 mm or less and a bearing width of 45% or less of an inner diameter, a diameter of the beads 7 and 8 of 4 mm and a ball retainer 9 ( The distance L between the back surface 19 of 10) and the inner surface 20 of the seals 11 and 12 is made 13% or more of the bead diameter Da.

Ball bearing

Sealed bearing

The present invention resides in a rolling element bearing comprising an inner ring (110), an outer ring and a seal (120) for enclosing a radial gap between the inner and outer rings, which is mounted to the outer ring. The inner ring comprises a shoulder part (111), adjacent to an inner raceway for rolling elements of the bearing, and further comprises first and second stepped portions. The shoulder part has a diameter D s ; the first stepped portion has diameter D 1 and the second stepped portion has a diameter D 2 , whereby D 2 < D 1 < D s , According to the invention, the seal comprises a first radial seal portion (123) that extends into the first stepped portion of the inner ring, and further comprises a second radial seal portion (124) that extends into the second stepped portion. A gap between opposing surfaces of the first and second radial seal portions and the first and second stepped portions respectively creates a labyrinth sealing region.

Ball bearing

Bearing pedestal, cleaning method of oil cavity thereof, engineering machine and mineral engineering machine

本发明公开了一种轴承座，包括：轴承座体及轴承盖，所述轴承座体和轴承盖内设有储油腔，储油腔的下方设有将储油腔与轴承座体的侧面连通的螺纹孔，螺纹孔处设有可调出油装置的旋转接头，可调出油装置包括旋转接头、扣压式软管总成和螺堵；扣压式软管总成的一端不带螺纹的接头接到旋转接头、另一端带螺纹的接头上设有螺堵。实现了不拆卸即可清洗轴承座的油腔的功能，从而延长了轴承的使用寿命、改善了轴承的工作环境等优势。另外，本发明还公开了采用该轴承座的油腔的清洗方法。此外，本发明还公开了包括该轴承座的矿业工程机械。另外，本发明还公开了包括该轴承座的工程机械。

Ball bearing

【課題】高速回転で使用されるアンギュラ型の玉軸受において、グリースの軟化を抑制し、グリースの漏れを抑制する。【解決手段】玉軸受１０は、肩が軸方向の他方向側に形成された内輪１１を有し、保持器１４は、玉１３の軸方向の一方向側に配設される環状体３９と、環状体３９の軸方向の他方向側に配設され玉１３を保持する複数のつの４０と、を有する。つの４０は、少なくとも一部が内輪軌道面１７と軸方向に重なるとともに、全部が内輪１１の肩２６と軸方向に重ならない。内輪の呼び接触点Ａと外輪の呼び接触点Ｂを含む基準仮想円錐面に対して平行な仮想円錐面であって、内輪軌道面１７と内輪１１の肩２６との縁Ｆを含む仮想円錐面および外輪軌道面３１と外輪１２の肩おとし部との縁Ｄを含む仮想円錐面のうち軸方向の他方向側にある仮想円錐面が、ポケット４１と重なる。【選択図】図１

Method and apparatus for enabling cold temperature performance of a disk

추운 기후일 경우, 윤활유의 증가된 점성으로 인한 직접 액세스 저장 장치의 스핀들 모터 어셈블리의 정규 회전 작동을 위해 더욱 높은 토오크가 요구되는 문제점을 극복하기 위하여, 윤활유의 점성 감소를 위한 스핀들 모터 어셈블리의 가열을 국부화하고, 스핀들 모터 어셈블리의 회전수 상승(spin-up) 동안이나 그 이후에 디스크 드라이브를 자체 가열되도록 한다. In cold climates, heating the spindle motor assembly to reduce the viscosity of the lubricant is required to overcome the problem that higher torque is required for normal rotational operation of the spindle motor assembly of the direct access storage device due to the increased viscosity of the lubricant. Localize and allow the disk drive to self-heat during or after spin-up of the spindle motor assembly.

Method capable of operating magnetic disk at low temp. and its device

在寒冷的天气下，由于润滑油增加了粘性，对于直接存取存储装置中的主轴电动机组件正常旋转操作来说需要较高的扭矩，而通过将加热元件固定在主轴电动机组件上，以减小润滑油的粘性克服了此问题，并且让磁盘驱动器在主轴电动机组件旋转过程中和旋转之后自加热。

Rotary actuator

본 발명은 로터리 액추에이터에 대한 것으로서, 더욱 상세하게는 오일이 수용되는 튜브조립수단 내부에 트러스트 베어링 링이 위치하여 회전마찰에 의한 마모 및 파손을 줄이고, 피스톤의 수압면적을 증가시켜 엑슬로드의 회전력을 크게 할 수 있는 로터리 액추에이터에 대한 것이다. 본 발명에 따른 로터리 액추에이터는 튜브조립수단과, 피스톤과, 엑슬로드조립수단과, 트러스트 베어링 링을 포함한다. 상기 튜브조립수단은 내주면에 나사가 형성된 튜브나선부를 구비하고, 오일이 출입할 수 있는 제1출입구와 상기 제1출입구와 일정 간격 이격하여 떨어진 제2출입구가 형성된다. 상기 피스톤은 상기 제1출입구로 상기 오일이 유입되면 상기 제2출입구 방향으로 이동할 수 있게 상기 튜브조립수단의 내부에 장착되며, 내주면에 형성된 내측나선부와 상기 이동시 회전할 수 있도록 상기 튜브나선부와 맞물리게 외주면에 형성된 외측나선부를 구비한다. 상기 엑슬로드조립수단은 일단부가 상기 튜브조립수단의 일단부를 폐쇄하고, 타단부가 상기 튜브조립수단의 타단부를 폐쇄하며, 상기 피스톤이 이동하면 회전할 수 있도록 상기 피스톤의 내측나선부와 맞물리는 엑슬로드나선부를 구비하여 상기 피스톤에 삽입된다. 상기 트러스트 베어링 링은 상기 엑슬로드조립수단과 상기 튜브조립수단의 마찰력을 감소시키기 위하여 일단은 상기 엑슬로드조립수단의 일측에 접촉하고 타단은 상기 튜브조립수단의 일측에 접촉하며, 상기 오일에 노출되도록 상기 튜브조립수단의 내부의 상기 일단부와 상기 타단부에 위치한다. 본 발명에 의하면, 오일이 수용되는 튜브조립수단의 내부에 트러스트 베어링 링을 위치시킴으로써 트러스트 베어링 링이 오일에 노출되어 회전마찰에 의한 마모나 파손을 줄일 수 있다. 또한, 본 발명에 의하면, 피스톤의 수압면적을 증가시키고 피스톤 몸체부와 결합하는 엑슬로드의 직경을 크게 함으로써, 엑슬로드의 회전력을 크게 할 수 있다.

Element with a coating of solid lubricant for a rolling bearing with grease lubrication

Hard films, hard films organizer and rolling bearing

一种硬质膜、硬质膜形成体及滚动轴承，其具有高的耐磨损性，并且在耐剥离性上优异，能长期地防止剥离。硬质膜是由在作为基材的滚动轴承的内环（2）的内环轨道面（2a）上直接成膜的将Cr和WC作为主体的第一混合层（8a）、在第一混合层（8a）之上成膜的将WC和DLC作为主体的第二混合层（8b）和在第二混合层（8b）之上成膜的将DLC作为主体的表面层（8c）构成的构造的硬质膜（8），第一混合层（8a）是从基材侧向第二混合层（8b）侧连续地或者阶段性地Cr的含有率变小、WC的含有率变高的层，第二混合层（8b）是从第一混合层（8a）侧向表面层（8c）侧连续地或者阶段性地WC的含有率变小、DLC的含有率变高的层，第二混合层（8b）中的氢含有量是10～45原子%。

Pulley rotation support device

本発明の課題は、小型化できる構造で、従動プーリ（４ｂ）に掛け渡す無端ベルト（１１）並びにこの従動プーリ（４ｂ）を支持するプーリ回転支持装置の耐久性確保を図る。本発明においては、上記プーリ回転支持装置として、３点接触型又は４点接触型のラジアル玉軸受（１４ｂ）を使用する。上記無端ベルト（１１）から上記従動プーリ（４ｂ）に加わるラジアル荷重の中心αと上記ラジアル玉軸受（１４ｂ）の中心位置βとの軸方向距離であるオフセット量δを、上記ラジアル玉軸受（１４ｂ）のピッチ円直径の４０％以下とする。このラジアル玉軸受（１４ｂ）のラジアル隙間を、上記ピッチ円直径の０．２％以下とする。 It is an object of the present invention to ensure the durability of an endless belt (11) that extends over a driven pulley (4b) and a pulley rotation support device that supports the driven pulley (4b) with a structure that can be downsized. In the present invention, a three-point contact type or four-point contact type radial ball bearing (14b) is used as the pulley rotation support device. The offset amount δ, which is the axial distance between the center α of the radial load applied to the driven pulley (4b) from the endless belt (11) and the center position β of the radial ball bearing (14b), is calculated by using the radial ball bearing (14b). ) Is 40% or less of the pitch circle diameter. The radial clearance of the radial ball bearing (14b) is set to 0.2% or less of the pitch circle diameter.

Method for checking the state of wear of a bearing, and corresponding bearing.

Sealed rolling bearing

Die Erfindung betrifft ein abgedichtetes Wälzlager (10), ausgebildet als zweireihiges Kegelrollenlager (12), beispielsweise für eine Windkraftanlage, welches einen ersten Innenring (14), einen zweiten Innenring (16) und einen koaxial über diesen beiden Innenringen (14, 16) angeordneten Außenring (18) aufweist, bei dem radial zwischen den beiden Innenringen (14, 16) und dem Außenring (18) Wälzkörper (26, 30) in zwei Wälzkörperreihen (28, 36) angeordnet sind, bei dem die Wälzkörper (26) der ersten Wälzkörperreihe (28) auf einer ersten Innenringlaufbahn (22) sowie einer ersten Außenringlaufbahn (24) und die Wälzkörper (30) der zweiten Wälzkörperreihe (36) auf einer zweiten Innenringlaufbahn (32) und einer zweiten Außenringlaufbahn (34) abrollen, bei dem die Wälzkörper (26, 30) in zumindest einem Wälzkörperkäfig (42, 44) angeordnet sind, und bei dem ein Lagerinnenraum (50) zumindest teilweise mit einem Schmiermittel (52) befüllt ist. Bei diesem Wälzlager (10) ist gemäß der Erfindung vorgesehen, dass an einem Axialvorsprung (60) des ersten Innenrings (14) radial außen ein Zusatzring (62) angeordnet ist, dass der Zusatzring (62) radial außen einen Radialwellendichtring (64) trägt, und dass eine radial auswärts gerichtete Dichtlippe (66) des Radialwellendichtrings (64) an einer zylindrischen Innendichtfläche (68) einer mit dem Außenring (18) verbundenen Axialverlängerung (70) radial anliegt. The invention relates to a sealed rolling bearing (10) formed as a double-row tapered roller bearing (12), for example, for a wind turbine, which a first inner ring (14), a second inner ring (16) and a coaxially above these two inner rings (14, 16) Outer ring (18), in which radially between the two inner rings (14, 16) and the outer ring (18) rolling elements (26, 30) in two rows of rolling elements (28, 36) are arranged, wherein the rolling elements (26) of the first Rolling element row (28) on a first inner ring raceway (22) and a first outer ring raceway (24) and the rolling ...

Device for rotating two components against each other

The invention relates to a device for rotating the shaft of a rotor blade of a wind energy plant relative to a hub of said wind energy plant. The inventive device comprises a bearing between the structural components and a gearwheel drive for actuating the rotation and adjusting the pitch of the rotor blade. According to the invention, a gearwheel of the drive and the bearing are disposed in the volume of a lubricant chamber.

Joint bearing between two structural elements suitably for warp knitting machines

하나가 연결 조인트(17)와 연결되고, 다른 하나가 힌지 핀과 연결되는 2개의 구조적 요소들 사이에 조인트 베어링(8)이 제공된다. 연결 조인트(17)에는, 내측으로 가압되는 외측링(28)이 제공되며, 상기 외측링과 힌지핀 사이에 케이지(30)가 배치된다. 케이지(30)는 원통형 롤러 본체(31)를 구비하며, 또한 케이지의 축방향 안내를 위한 정지구(34)를 구비한다. 외측링(28)은 매우 얇은 벽으로 되므로, 적소에 가압된 후, 그 내측 주위가 재가공되어야 한다. 외측링(28)은 단지 롤러 본체(31)의 길이 전반에 걸쳐 연장한다. 정지구(34)는 외측링(28)으로부터 분리되어 연결 조인트(17)에 부착된다. 더우기, 힌지핀(20)은 튜브(19)로서 구성될 수 있다. 적절한 구조적 요소(레버;9)가 튜브(19)의 외측에 접촉한다. 튜브의 내측 공간으로부터 외향으로 돌출하는 스크류 또는 다른 패스너(21)에 의해, 상기 구조적 요소가 튜브 벽상에 부착된다. 상기와 같은 구성에 의해, 가동 조인트 베어링의 매스가 현저히 감소된다. A joint bearing 8 is provided between two structural elements, one connected with the connecting joint 17 and the other connected with the hinge pin. The connection joint 17 is provided with an outer ring 28 pressurized inward, and a cage 30 is disposed between the outer ring and the hinge pin. The cage 30 has a cylindrical roller body 31 and also has a stopper 34 for axial guidance of the cage. Since the outer ring 28 is a very thin wall, after being pressed in place, its inner periphery must be reworked. The outer ring 28 only extends over the length of the roller body 31. The stopper 34 is detached from the outer ring 28 and attached to the connecting joint 17. Moreover, the hinge pin 20 can be configured as the tube 19. A suitable structural element (lever) 9 contacts the outside of the tube 19. The structural elements are attached on the tube wall by screws or other fasteners 21 which project outwardly from the inner space of the tube. By such a configuration, the mass of the movable joint bearing is significantly reduced.

Sealing device and sealing structure

Ball bearing

本发明提供一种球轴承。球轴承具有在轴向的另一侧形成有台肩的内圈，保持架具有在滚珠的轴向的一侧配置的环状体和在环状体的轴向的另一侧配置并保持滚珠的多个角形部。角形部的至少一部分与内圈滚道面沿轴向重叠，并且全部与内圈的台肩沿轴向不重叠。包含内圈滚道面与内圈的台肩之间的缘部的假想圆锥面和包含外圈滚道面与外圈的无锁口部之间的缘部的假想圆锥面中的位于轴向的另一侧的假想圆锥面与兜孔重叠，所述假想圆锥面是与包含内圈的名义接触点和外圈的名义接触点的基准假想圆锥面平行的圆锥面。

Rolling bearing

Improvement in clutch bearings

Improved bearing life

Roulement comprenant une bague extérieure (3), une bague intérieure (4), au moins une rangée d’éléments roulants (2) disposés entre deux chemins de roulement (5a, 5b, 7a, 7b) desdites bagues extérieure et intérieure (3, 4). En outre, ledit chemin de roulement (5a, 5b) de la bague extérieure (3) et/ou ledit chemin de roulement (7a, 7b) de la bague intérieure (4) comprennent au moins partiellement un revêtement à base de nitrure de chrome, les éléments roulants (2) comprenant au moins partiellement un revêtement à base de carbone. Figure pour l’abrégé : Fig 1 Bearing comprising an outer ring (3), an inner ring (4), at least one row of rolling elements (2) arranged between two raceways (5a, 5b, 7a, 7b) of said outer and inner rings (3, 4). Furthermore, said raceway (5a, 5b) of the outer race (3) and/or said raceway (7a, 7b) of the inner race (4) at least partially comprises a coating based on chromium nitride , the rolling elements (2) at least partially comprising a carbon-based coating. Figure for abstract: Fig 1

MECHANICAL SYSTEM WITH A UNIDIRECTIONAL CLUTCH, ALTERNATOR AND METHOD FOR MANUFACTURING SUCH A SYSTEM

DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES

The bearing is mounted between two concentric crown wheels (2,3) which delimit an annular space enclosing the bearing and closed by sealing joints. A lubrication conduit is provided between the periphery of one of the crown wheels and the annular space and is connected to a corresponding lubrication reservoir. The moving crown wheel (3) is subjected to asymmetrical forces directed towards a region of the fixed crown wheel. At least one conduit discharges into the annular space in a high pressure angular sector (11) surrounding the region. The corresponding reservoir (5) receives the lubricant coming from the annular space through the conduit under the effect of the high pressure in the annular space.

BALL BEARING AND ASSOCIATED MASSIVE CAGE

UNIVERSAL JOINT

L'INVENTION CONCERNE UN JOINT DE CARDAN. LE JOINT COMPORTE UN CROISILLON 9 DONT LES TOURILLONS 11 SONT MONTES DANS DES COUSSINETS 12 LOGES DANS LES BRAS 8 DES FOURCHES DE TRANSMISSION DU MOUVEMENT, L'ETANCHEITE ENTRE LE CROISILLON ET LES BRAS 8 ETANT ASSUREE PAR UN JOINT ELASTIQUE 13 QUI ENVELOPPE LE CORPS DU CROISILLON ET FORME UNE RESERVE DE LUBRIFIANT CONTRE CELUI-CI. LE CORPS DE CROISILLON COMPORTE DES EVIDEMENTS 12 QUI CONSTITUENT CETTE RESERVE DE LUBRIFIANT ET QUI SONT PROLONGES VERS LE TOURILLON 11 PAR DES RAINURES 13 DONT LE FOND S'ECARTE DU PLAN DE SYMETRIE EN ALLANT VERS LE TOURILLON. APPLICATION AUX JOINTS DE TRANSMISSION A CROISILLON. THE INVENTION RELATES TO A CARDAN SEAL. THE GASKET INCLUDES A CROSSBODY 9 WHOSE DOWELS 11 ARE MOUNTED IN 12-HOUSED BEARINGS IN THE ARMS 8 OF THE MOVEMENT TRANSMISSION FORKS, THE TIGHTNESS BETWEEN THE CROSSBODY AND THE ARMS 8 BEING PROVIDED BY AN ELASTIC SEAL 13 WHICH WRAPS THE BODY OF THE CROSSBODY AND FORM A RESERVE OF LUBRICANT AGAINST IT. THE CROSSBODY BODY INCLUDES RECESSES 12 WHICH CONSTITUTE THIS LUBRICANT RESERVE AND WHICH ARE EXTENDED TOWARDS THE TRUNK 11 BY GROOVES 13 THE BOTTOM OF WHICH DIFFERS FROM THE PLANE OF SYMMETRY GOING TOWARDS THE TRUNK. APPLICATION TO CROSS-CROSS TRANSMISSION JOINTS.

DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES

L'invention concerne un dispositif de graissage automatique d'un roulement monté entre deux couronnes concentriques (2, 3) pivotant l'une par rapport à l'autre, et délimitant un espace annulaire renfermant le roulement et étant fermé par des joints d'étanchéité, au moins un conduit de graissage étant prévu entre la périphérie d'une des deux couronnes et ledit espace annulaire pour y injecter de la graisse.Ce dispositif comprend au moins un réservoir (S) communiquant avec le conduit de graissage et apte à recevoir ou diffuser de la graisse dans ledit espace annulaire, sous l'effet de la différence de pression entre les deux extrémités du conduit de graissage. The invention relates to an automatic lubrication device for a bearing mounted between two concentric rings (2, 3) pivoting with respect to each other, and delimiting an annular space enclosing the bearing and being closed by seals sealing, at least one lubrication duct being provided between the periphery of one of the two rings and said annular space for injecting grease therein. This device comprises at least one reservoir (S) communicating with the lubrication duct and suitable for receiving or diffuse grease into said annular space, under the effect of the pressure difference between the two ends of the lubrication duct.

METHOD AND PYROTECHNIC DEVICE, INDEPENDENT, FOR INJECTING A FLUID

BEARING ASSEMBLY FOR COMBUSTION ENGINE SHAFT AND COMBUSTION ENGINE

L'invention concerne un ensemble de palier pour arbre de moteur à combustion lubrifié à l'huile et comportant une chambre d'huile (24) du moteur, l'ensemble comportant au moins un palier (14a, 14b, 14c, 14d) destiné à maintenir l'arbre de moteur (10, 10') de manière rotative sur un boîtier (12c) du moteur et un passage d'arbre à travers le boîtier (12c) du moteur pour ledit arbre de moteur (10, 10'), le passage d'arbre comportant au moins un joint d'étanchéité (14a1, 14c2, 14d2) pour rendre étanche la chambre d'huile (24). Les inventeurs proposent que le joint d'étanchéité (14a1, 14c2, 14d2) soit intégré au palier (14a, 14b, 14c).

Bearing arrangement

本发明的课题在于提供具有能够不使用泵地从润滑油箱(39)将润滑油没有时滞地供给到滚动轴承(11)，而且能量效率良好的供油装置(13)的轴承装置。包含滚动轴承(11)和供油装置(13)的组合的轴承装置(10)的特征在于：供油装置(13)包括：贮存加压后的润滑油，具有润滑油的排出口的润滑油箱(39)；开闭润滑油箱的排出口的开闭阀；驱动该开闭阀的驱动部；和产生使该驱动部驱动的电能的电源部，将该供油装置安装于上述滚动轴承(11)或与滚动轴承(11)邻接的隔离件(12)。

ROLLER BEARING OF THE TYPE HAVING A SEAL RING CAPABLE OF CIRCULATING FORCE THE LUBRICANT

L'INVENTION CONCERNE UN PALIER A ROULEAUX. SELON L'INVENTION, IL COMPREND UNE BAGUE EXTERNE 2 AYANT UN REBORD ANNULAIRE COURBE VERS L'INTERIEUR 5, UNE BAGUE D'ETANCHEITE 4 INTERPOSEE LIBREMENT ENTRE LA CIRCONFERENCE INTERNE DU REBORD ET UN ARBRE 1 AVEC UN JEU APPROPRIE, ET UN MOYEN POUR IMPARTIR UNE ROTATION FORCEE A LA BAGUE D'ETANCHEITE EST EGALEMENT PREVU SUR LA BAGUE D'ETANCHEITE 4, LA CAGE, LE ROULEAU 3 OU LE REBORD 5 DE LA BAGUE EXTERNE 2 OU SUR DEUX D'ENTRE EUX, POUR ENTRAINER LA BAGUE D'ETANCHEITE PAR ROTATION DU ROULEAU, DE LA CAGE OU DU REBORD DE LA BAGUE EXTERNE; GRACE A CETTE CONSTRUCTION, LE LUBRIFIANT PEUT ETRE MIS DE FORCE EN CIRCULATION PAR LA BAGUE D'ETANCHEITE ENTRE L'INTERIEUR ET L'EXTERIEUR DU PALIER. L'INVENTION S'APPLIQUE NOTAMMENT AUX PALIERS AVEC OU SANS CAGE. THE INVENTION RELATES TO A ROLLER BEARING. ACCORDING TO THE INVENTION, IT INCLUDES AN EXTERNAL RING 2 HAVING AN ANNULAR EDGE CURVED INTO THE INTERIOR 5, A SEALING RING 4 FREELY INTERPOSED BETWEEN THE INTERNAL CIRCUMFERENCE OF THE EDGE AND A SHAFT 1 WITH APPROPRIATE CLEARANCE, AND A MEANS A FORCED ROTATION OF THE SEALING RING IS ALSO PROVIDED ON THE SEALING RING 4, THE CAGE, THE ROLLER 3 OR THE EDGE 5 OF THE EXTERNAL RING 2 OR ON TWO OF THEM TO DRIVE THE SEALING RING BY ROTATION OF THE ROLLER, THE CAGE OR THE EDGE OF THE EXTERNAL RING; THANKS TO THIS CONSTRUCTION, THE LUBRICANT CAN BE FORCED IN CIRCULATION BY THE SEALING RING BETWEEN THE INTERIOR AND EXTERIOR OF THE BEARING. THE INVENTION APPLIES IN PARTICULAR TO BEARINGS WITH OR WITHOUT A CAGE.

Electric motor, transmission and rolling machine comprising such an electric motor

Moteur (1) électrique comprenant un stator (2), un rotor (3), un arbre (4) de rotation entraîné par le rotor (3), un ventilateur (5) solidaire en rotation dudit arbre (4), un roulement (6) à billes monté sur l’arbre (4) et une enveloppe (7) ajourée à l’intérieur de laquelle sont disposés au moins partiellement le rotor (3), le stator (2), l’arbre (4) de rotation, le ventilateur (5) et le roulement (6) à billes, ledit roulement (6) à billes comprenant une bague extérieure (9) montée fixe en rotation à l’intérieur de ladite enveloppe (7), coaxiale avec une bague intérieure (10) montée solidaire en rotation de l’arbre (4) de rotation. Le moteur (1) comprend un disque déflecteur (14) monté, sur l’arbre (4) de rotation, entre le rotor (3) et le roulement (8) à billes, à écartement de la bague extérieure (9) du roulement (6), ce disque déflecteur (14) solidaire en rotation de l’arbre (4) de rotation présentant un diamètre extérieur au moins égal au diamètre intérieur de la bague extérieure (9) du roulement (6). Figure pour l’abrégé : Fig. 2 Electric motor (1) comprising a stator (2), a rotor (3), a rotation shaft (4) driven by the rotor (3), a fan (5) integral in rotation with said shaft (4), a bearing ( 6) with balls mounted on the shaft (4) and a perforated casing (7) inside which are arranged at least partially the rotor (3), the stator (2), the shaft (4) for rotation , the fan (5) and the ball bearing (6), said ball bearing (6) comprising an outer race (9) mounted fixed in rotation inside said casing (7), coaxial with an inner race ( 10) mounted integral in rotation with the shaft (4) of rotation. The motor (1) comprises a deflector disc (14) mounted, on the rotation shaft (4), between the rotor (3) and the ball bearing (8), spaced apart from the outer race (9) of the bearing (6), this deflector disc (14) integral in rotation with the rotation shaft (4) having an outside diameter at least equal to the inside diameter of the outer ring (9) of the bearing (6). Figure ...

BEARING BEARING COMPRISING A SEALING FLANGE

Patent FR2320457B3

SEALED BEARING SYSTEM FOR THE ROTATING PARTS OF A LIFTING MACHINE FOR UNDERWATER USE

LA PRESENTE INVENTION CONCERNE UN SYSTEME DE PALIERS ETANCHES POUR LES PIECES TOURNANTES D'UN ENGIN DE LEVAGE POUR UTILISATION SOUS-MARINE. DANS UN ENGIN DE LEVAGE, PLUSIEURS POULIES A CABLE 16 SONT MONTEES SUR UN BOULON CREUX 1 A L'INTERIEUR DUQUEL SE DEPLACE UN PISTON 2 ENTRE DES ARRETS 3. DANS LE BOULON 1, AU NIVEAU DES POULIES 16, ON A PREVU DES CANAUX DE JONCTION 6 ENTRE UN VOLUME 7 REMPLI DE GRAISSE A L'INTERIEUR DU BOULON 1 ET LES BOITES A GRAISSE 8 DES PALIERS DESDITES POULIES. LE VOLUME INTERNE 7 EXPOSE A LA PRESSION ENVIRONNANTE CONSTITUE UN ELEMENT D'EQUILIBRAGE DE PRESSION POUR LE JOINT ANNULAIRE D'ETANCHEITE 10. L'INVENTION S'APPLIQUE AUX PALANS ET MOUFLES PORTE-CHARGE UTILISES SOUS L'EAU. THE PRESENT INVENTION CONCERNS A SYSTEM OF SEALED BEARINGS FOR THE ROTATING PARTS OF A LIFTING MACHINE FOR UNDERWATER USE. IN A LIFTING MACHINE, SEVERAL CABLE PULLEYS 16 ARE MOUNTED ON A HOLLOW BOLT 1 INSIDE WHICH A PISTON 2 MOVES BETWEEN STOPS 3. IN BOLT 1, AT PULLEYS 16, PROVIDED CHANNELS OF JUNCTION 6 BETWEEN A VOLUME 7 FILLED WITH GREASE INSIDE THE BOLT 1 AND THE GREASE BOXES 8 OF THE BEARINGS OF SAID PULLEYS. THE INTERNAL VOLUME 7 EXPOSED TO THE SURROUNDING PRESSURE CONSTITUTES A PRESSURE BALANCING ELEMENT FOR THE SEALING RING 10. THE INVENTION APPLIES TO HOISTS AND LOAD HOLDERS USED UNDERWATER.

PNEUMATIC SYSTEM FOR INTEGRATED WHEEL INFLATION WITH A MOTORIZED AXLE

Abrégé : L'invention concerne un système pour alimentation pneumatique de roue comprenant un support de palier (10), un arbre (20) comprenant une extrémité (21) formant moyeu qui s'étend radialement (Y), au moins un jeu de roulement de palier (30), dans lequel le système comprend en outre une chambre (C) formée par l'extrémité (21) formant moyeu, le support de palier (10), un joint de roulement (40) et un joint de chambre (50), un canal primaire (60) traversant le support de palier (10) et débouchant dans la chambre (C), Un canal secondaire (70) traversant l'extrémité (21) formant moyeu et débouchant dans la chambre (C), dans lequel des joints étanchéifie la cavité (C) pour permettre à l'air de passer du canal primaire au canal secondaire via la cavité (C). The invention relates to a pneumatic wheel supply system comprising a bearing support (10), a shaft (20) comprising a radially extending end (21) forming a hub (Y), at least one bearing set bearing (30), wherein the system further comprises a chamber (C) formed by the hub end (21), the bearing support (10), a bearing seal (40) and a chamber seal ( 50), a primary channel (60) passing through the bearing support (10) and opening into the chamber (C), A secondary channel (70) passing through the end (21) forming a hub and opening into the chamber (C), wherein seals seal the cavity (C) to allow air to pass from the primary channel to the secondary channel via the cavity (C).

GUIDE BEARINGS FOR ALTERNATE MOVEMENT WITH CONTINUOUS ROTATING ELEMENTS PROVIDING THE CIRCULATION OF THE LUBRICANT

Self-aligning bearing for e.g. rolling mill, has half-cages whose rings have large diameter such that cage does not contact outer race and small diameter such that cage does not contact inner race, where inner race is not provided with neck

La présente invention concerne un roulement à rotule comportant : au moins une bague intérieure (BI) comportant deux chemins de roulement intérieurs,au moins une bague extérieure (BE) comportant un chemin de roulement sphérique, une cage formée de deux demi-cages, radialement disposée entre la bague intérieure (BI) et la bague extérieure (BE), deux rangées de rouleaux, chaque rangée de rouleaux correspondant à une des deux demi-cages et à un des deux chemins de roulement de la bague intérieure, chaque rangée de rouleaux étant composée de rouleaux (10, 10') disposés dans des alvéoles de la demi-cage correspondante, et roulant sur le chemin de roulement correspondant de la bague intérieure et sur le chemin de roulement sphérique de la bague extérieure. Selon l'invention, chaque rouleau est au moins partiellement entouré par deux entretoises (4) consécutives et par une portion (32) de l'anneau (3) faisant partie de la demi-cage correspondante, en ce que la bague intérieure est dépourvue de collet interne formant butée axiale entre les deux rangées de rouleaux et en ce que la hauteur H de chacun des anneaux est telle que la cage n'est jamais en contact avec la bague extérieure. L'invention concerne en outre une cage massive pour un tel roulement à rotule.

DEVICE FOR LONG-TERM LUBRICATION OF BEARING COMPONENTS

a. Dispositif pour la lubrification de longue durée d'éléments de paliers. Dispositif caractérisé en ce qu'au moins un palier à rouleaux ainsi que l'arbre lié à ce palier, sont entourés d'un boîtier assurant l'étanchement et constituant simultanément des réceptacles pour des réserves de graisse, tandis qu'il est prévu un dispositif de recyclage forcé pour la graisse de lubrification, dispositif entraîné par l'arbre en rotation et entraînant la graisse suivant une rotation cyclique à travers le palier à rouleaux et les réceptacles de réserve de graisse. c. L'invention s'applique notamment à l'industrie automobile. at. Device for long-term lubrication of bearing elements. Device characterized in that at least one roller bearing as well as the shaft linked to this bearing, are surrounded by a housing ensuring sealing and simultaneously constituting receptacles for grease reserves, while a forced recycling device for lubricating grease, device driven by the rotating shaft and driving the grease in a cyclical rotation through the roller bearing and the grease reserve receptacles. vs. The invention applies in particular to the automotive industry.

Method and apparatus for enabling cold temperature performance of a disk

In cold weather, the higher torque required for normal spinning operation of a spindle motor assembly in a direct access storage device due to the increased viscosity of the grease, is overcome by localizing the heating to the spindle motor assembly to reduce the viscosity of the grease, and then let a disk driven self heat during and after spin-up of the spindle motor assembly.

Clutch device

A kind of Mineral Engineering machinery, bearing support and the purging method of exempting to tear open oil chamber capable of washing

本发明公开了一种免拆可清洗油腔的轴承座，包括：轴承座体及设置在轴承座体上的轴承盖，所述轴承座体和轴承盖内设有储油腔，其下方设有与所述轴承座体的侧面连通的螺纹孔，所述螺纹孔处设有可调出油装置的旋转接头，实现了免拆即可清洗轴承座的油腔的功能，采用该结构的轴承座具有使用加工制作容易、成本低、寿命长，并且延长了轴承的使用寿命、改善了轴承的工作环境等优势。另外，本发明还公开了一种基于免拆可清洗油腔的轴承座的油腔的清洗方法，该方法操作简单、效率高。此外，本发明还公开了一种包括该免拆可清洗油腔的轴承座的矿业工程机械，具有维护简单、使用寿命长的优势，并可延长该矿业工程机械的大修周期。

Ball or roller bearings with grease chambers arranged inside the bearing