Abstract: A ball arranging method for a ball bearing includes in this order a ball inserting step of inserting a plurality of balls into one region along a circumferential direction of an annular space formed between an inner ring and an outer ring, a flow stopping step of placing a flow stopping jig on a circumferentially outer side of the one region in the annular space so as to hold the inserted balls within the one region, and a ball separating step of sequentially inserting, in an axial direction, tip ends of a plurality of working arrows protruding correspondingly to a number of the balls between the balls while the flow stopping jig is removed from the annular space from a state of being placed in the annular space, so as to arrange the balls at equal intervals in the circumferential direction.

Abstract: A casing spacer equipped with low-profile, high-load-capacity roller assemblies that require less force to install a carrier pipe inside a casing pipe. The low-profile, high-load-capacity roller assemblies are manufactured from a material designed to carry a heavy load, which material will not wear away as the carrier pipe is pushed or pulled through the casing pipe. The wheels of the low-profile, high-load-capacity roller assemblies are manufactured from an electronically isolating material to prevent contact of dissimilar metals, thereby mitigating galvanic corrosion.

Abstract: The column portions of the cage includes roller holding portions which restrain the cylindrical roller on an outer diameter side and an inner diameter side thereof. The roller holding portions are formed such that a radial movement amount of the cage with respect to the cylindrical roller from a state where a revolution center of the cylindrical roller coincides with an axial center of the cage is configured so that an outer diameter side movement amount<an inner diameter side movement amount, and an outer diameter side opening width of the pocket portion>an inner diameter side opening width of the pocket portion. The column portion includes an inner diameter side protrusion which protrudes to an inner diameter side than inner circumferential surfaces of the annular portions and which configures the roller holding portions.

Abstract: The column portions of the cage includes roller holding portions which restrain the cylindrical roller on an outer diameter side and an inner diameter side thereof. The roller holding portions are formed such that a radial movement amount of the cage with respect to the cylindrical roller from a state where a revolution center of the cylindrical roller coincides with an axial center of the cage is configured so that an outer diameter side movement amount<an inner diameter side movement amount, and an outer diameter side opening width of the pocket portion>an inner diameter side opening width of the pocket portion. The column portion includes an inner diameter side protrusion which protrudes to an inner diameter side than inner circumferential surfaces of the annular portions and which configures the roller holding portions.

Abstract: A hoisting crane includes a slew bearing. The slew bearing includes a top bearing ring, a bottom bearing ring, a first row of axial load rollers and a second row of axial load rollers, which rows of axial load rollers are provided between a corresponding top roller raceway and bottom roller raceway. The top bearing ring has a top wall which extends above the first row of axial load rollers and in which at least one top entry port is provided. Furthermore, the top roller raceway of the first row of axial load rollers includes a removable raceway segment releasable attached in the top entry port. The removable raceway segment can be removed to enable access via the top entry port to the first row of axial load rollers to remove axial load rollers in a substantially vertical direction.

Abstract: A radial support bearing having a cylindrical cage including a central portion, a first end portion and a second end portion, the central portion defining a plurality of roller pockets, and at least one projection extending radially inwardly from an inner surface of the cage, a plurality of rollers, each roller being disposed in a respective roller pocket, a cylindrical outer sleeve disposed about an outer surface of the cage so that the inner surface of the outer sleeve is adjacent the plurality of rollers, and an o-ring adapted to be axially fixed relative to the shaft. The o-ring is slidably received between the at least one projection of the cage and the central portion of the cage so that the cage is axially fixed with respect to the shaft.

Abstract: A radial support bearing having a cylindrical cage including a central portion, a first end portion and a second end portion, the central portion defining a plurality of roller pockets, and at least one projection extending radially inwardly from an inner surface of the cage, a plurality of rollers, each roller being disposed in a respective roller pocket, a cylindrical outer sleeve disposed about an outer surface of the cage so that the inner surface of the outer sleeve is adjacent the plurality of rollers, and an o-ring adapted to be axially fixed relative to the shaft. The o-ring is slidably received between the at least one projection of the cage and the central portion of the cage so that the cage is axially fixed with respect to the shaft.

Abstract: A cage for a roller bearing is provided. The cage has a ring-shaped base body with a plurality of pockets for receiving rolling elements. The base body is formed by two side rings arranged in a defined axial distance and by a plurality of pocket elements, which are located between the side rings. Each pocket element has two face sides designed for contacting a rolling element. The connection between the pocket element and each of the side rings is established by at least one beam joined with one of the side rings and the pocket element. The beam is a positive substance joined with one of the side rings and the pocket element and has a ring-shaped or elliptical cross section in a section perpendicular to the longitudinal extension of the beam.

Abstract: A chain guide is provided which reduces moving resistance of a camshaft-driving, torque-transmitting timing chain. The chain guide includes a guide base provided on one side of the timing chain to face the timing chain and having an opposed pair of side plates. The side plates support respective ends of roller shafts each rotatably supporting a chain-guiding needle roller bearing. Each needle roller bearing includes a retainer guided by needle roller elements.

Abstract: A roller bearing assembly (10) having an annular outer race (22) with a raceway (24), a pair of opposed flanges (30), and a pair of shoulders (32), each shoulder (32) being disposed between a corresponding flange (30) and a corresponding edge of the raceway (24), a roller retainer (12) defining a plurality of roller pockets (16), and a plurality of rollers (14), each roller (14) being disposed in a corresponding roller pocket (16). Each shoulder (32) forms an annular ridge (32a) with the corresponding edge of the raceway (24).

Abstract: A split cage includes a plurality of cage segments each having a pair of rim portions and a pair of cage bar portions, the cage bar portions and the rim portions defining a single pocket that accommodates a single tapered roller. Turning of each of the cage segments is guided by the tapered roller, the cage segments being arranged in a circular pattern along the circumferential direction of the split cage, in an annular space between inner and outer rings. Each cage segment has projections formed so as to project radially inward and formed at the rim portions. A projecting length of each projection is set to such a length that the projection is brought into contact with an outer peripheral side portion of the inner ring when the cage segment starts rotating.

Abstract: A tapered roller bearing fabricating system and a tapered roller supply method are provided which enable tapered rollers to be loaded properly in pockets of a cage. The tapered roller supply system has a tube which stocks a plurality of tapered rollers loaded from above in a stacked-up state in an inside thereof and a tapered roller supply portion which separates a lowermost tapered roller from a tapered roller situated above the lowermost tapered roller in the plurality of tapered rollers to be discharged from the tube in upstream and downstream directions so as to allow the tapered rollers to drop sequentially one by one when they reach a lowermost position.

Abstract: In certain embodiments, a method for manufacturing an integral duplex bearing having an outer ring, a first inner ring, and a second inner ring includes forming a first outer raceway and a second outer raceway in an inner surface of the outer ring. The method further includes forming a first inner raceway in an outer surface of the first inner ring and a second inner raceway in an outer surface of the second inner ring while the first inner ring and the second inner ring are joined together. The first and second inner rings each have an outer surface diameter less than an inner surface diameter of the outer ring such that the first and second inner rings may be positioned inside the outer ring with the first inner raceway located adjacent to the first outer raceway and the second inner raceway located adjacent to the second outer raceway. The method further includes separating the first inner ring from the second inner ring.

Abstract: A bearing configuration for the purpose of mounting a shaft or axle in a housing in a manner allowing rotation. The bearing configuration has a rolling bearing designed as a roller bearing with at least one bearing ring which is functionally assigned to the housing, said bearing ring forming an outer race facing inward radially, wherein rolling elements are guided on said outer race, working together on the opposite side with a shaft which forms an inner race. The roller bearing of the bearing configuration is a combination of at least two joined polygonal bearings, wherein each polygonal bearing on the bearing ring includes at least one elastic segment which forms a convex, transversely rounded race curvature. This configuration ensures that at least one rolling element is radially pretensioned and supported on the outer race of the shaft, and the shaft is guided in the housing with no radial play.

Abstract: A method for assembling a rolling bearing by deformation of the outer ring (OR) and/or the inner ring (IR) comprising, before said step of deformation, determining the theoretical position (1?, 2?) that the two extreme rolling elements should occupy so as to allow inserting at least one supplemental rolling element (11) in said space (13), said theoretical position defining an acute application angle (?2) determining the value of forces (F1) to be applied from outside to said outer ring (OR) at three application points, one central point at said nearest or contact location of both inner an outer rings in said symmetry plane and two lateral points at an angle (2?2) equal to the double of said acute application angle with respect to said symmetry plane, verifying that the deformation of the outer ring (OR) resulting from the application of said forces remains elastic and in that case, applying said forces and inserting at least one supplemental rolling element in said space.

Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing surrounding at least one of the rings, said outer ring comprising two separate parts, the housing comprising two distinct parts for retaining the parts of said outer ring and fixing means for fixing the distinct parts together. The first part of the housing comprises an inner axial cylindrical portion for retaining radially said outer ring and the second part of the housing comprises an outer axial cylindrical portion surrounding said inner axial cylindrical portion.

Abstract: A roller bearing sub-assembly can include a first mounting portion, a second mounting portion spaced apart from the first mounting portion, a first roller disposed between the first and second mounting portions and straps wrapped partially around different portions of the first roller. The first mounting portion, second mounting portion, first roller and straps are configured such that the first and second mounting portions are moveable relative to each other along a selected direction for a distance that is approximately equal to a circumference of the first roller in opposite directions from a mid-stroke position. Linear roller bearing assemblies and methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system.

Abstract: In summary, the invention relates to a method for forming an end-side toothing arrangement of a roiling bearing, in particular a wheel bearing. The aim is to improve the uniformity of the end-side toothing arrangement and to allow a greater tooth depth. This is achieved by two method steps in that, in a first step before the reshaping of an end piece of a hub, a die is axially arranged on the rolling bearing in a preassembled state and, in a second step during the reshaping of the end piece and the shaping of the end-side toothing arrangement, the die radially delimits a radial recess of the rolling rivet collar as it forms. In addition, the die reduces or prevents radial widening of the inner ring.

Abstract: A seal member is fixed to a predetermined position on an outer peripheral surface of a shaft portion. During rotation of a shaft member, a lower end surface of the seal member is opposed to an upper end surface of a bearing sleeve through an intermediation of a thrust bearing gap to form a second thrust bearing gap. An outer peripheral surface of the seal member defines between itself and an inner peripheral surface of an upper end portion of a housing a seal space having a predetermined volume.

Abstract: A wheel carrier for a motor vehicle in which the wheel carrier is typically manufactured from aluminum. The wheel carrier comprises a recess (1) for receiving an outer ring (2) of a wheel bearing (3). An inner ring (4) of the wheel bearing (3) is fixed in a hub (15) of a wheel flange (12) of a vehicle axle. An axial end of the outer ring (2) of the wheel bearing (3) abuts against a shoulder of the wheel carrier (6), and a rim section (5) of the wheel carrier (6) is at least partially deformed to abut an opposite axial end of the outer ring (2) of the wheel bearing (3).

Abstract: An outer ring and rolling elements are fitted to a shaft portion of a shaft member for a wheel rolling bearing device from a shaft end portion of the shaft member, an inner ring and rolling elements are fitted to the shaft portion, and then the shaft end portion is clinched to form a clinched portion to thereby fix the inner ring. At this time, the shaft end portion to be clinched has a solid columnar shape, and a clinching jig is pressed against the shaft end portion, and the clinching jig is oscillated while being pressed in a direction toward one end side of the shaft portion to thereby increase the diameter of the shaft end portion to clinch the shaft end portion.

Abstract: The invention presents a cage (1) for separating rollers in a toroidal roller bearing. The cage (1) comprises a first and second annular ring (2, 3), a plurality of elongated axial members (4) interposed between the first and second annular ring to thereby form a number of roller pockets (5). The cage further presents a portion (6) extending radially inwardly on at least one of the first and second annular ring. The portion further extends in at least a part of the circumference of the at least one first and second annular ring. The radially outer peripheral surface of the annular ring presenting the portion presents axial grooves (7) at least at the circumference having the portion, wherein each axial groove is located at the axial end face of each roller pocket in such a way that a roller can be inserted and pulled out via the axial groove into and out of each roller pocket.

Abstract: In a rolling bearing device for a road-wheel including an inner shaft 1 that is provided with, on its outer-side end 10, a flange 4 on which a road-wheel member mounted, and an outer ring 2 disposed around the inner shaft 1, the inner shaft has, on its outer side, a hair-line pattern portion 5 that is formed by turning and that permits the manufacturing attribute of the bearing device to be identified based on the difference in the form of hair lines so formed. This permits the manufacturing attribute of the bearing device to be identified after the bearing device is assembled in a vehicle body. Furthermore, the representation of the manufacturing attribute can be readily implemented during a manufacturing step.

Abstract: A roller bearing, particularly for mounting the wheel of a commercial vehicle, has two angular-contact ball bearings placed in an O-arrangement relative to one another. The roller bearing is designed such that each angular-contact ball bearing is associated to a roller body row having a common inner ring with the angular contact ball bearing, wherein the two roller body rows are facing one another and form inner bearing rows.

Abstract: A bearing assembly includes an inner race having a first inner race half and a second inner race half, and an outer race having a first outer race half and a second outer race. The first inner race half and the second inner race half cooperate to define an inner annular groove, and the first outer race half and the second outer race half cooperate to define an outer annular groove. A plurality of rollers is disposed within the inner annular groove and the outer annular groove in rolling engagement with the inner race and the outer race. An inner coupling mechanism couples the first inner race and the second inner race together, and an outer coupling mechanism couples the first outer race and the second outer race together.

Abstract: In a wheel supporting rolling bearing unit in which pitch circle diameters of balls 6a, 6b in an outside row and an inside row are made different, contact angles ?OUT, ?IN of the balls 6a, 6b in the two rows in a completed state are equal to each other. Initial contact angles ?OUT, ?IN of the two rows are smaller than predetermined contact angles ?OUT, ?IN. The extent [?IN??IN] to which the initial contact angle ?IN of the balls 6b, 6b in the inside row is made smaller than the predetermined contact angle ?IN of the balls 6b, 6b is made larger than the extent [?OUT??OUT] to which the initial contact angle ?OUT of the balls 6a, 6a in the outside row is made smaller than the predetermined contact angle ?OUT of the balls 6a, 6a {[?IN??IN]>[?OUT??OUT]}. By this configuration, imparting the predetermined contact angles ?OUT, ?IN to the balls 6a, 6b in the two rows in the completed state, and the preloads and contact angles of the balls 6a, 6b in the two rows are made proper.

Abstract: A bearing includes a first inner race half and a second inner race half, and a first outer race half and a second outer race half. A cage defining a plurality of openings supports a plurality of rollers. The bearing is assembled by positioning the first inner race half on a mandrel and the first outer race half on a work support, positioning the cage with the rollers supported in the openings adjacent to and concentric with the first inner race half and the first outer race half. The second inner race half and the second outer race half are positioned adjacent the first inner race half and the first outer race half respectively. The first inner race half and the second inner race half, and the first outer race half and the second outer race half are then bonded together to form the bearing assembly.

Abstract: Linear roller bearing assemblies can include a hub, a collar around the hub and roller bearing sub-assemblies disposed in a radial pattern around the hub. The roller bearing sub-assemblies can guide linear movement of the hub relative to the collar along a selected direction. Each roller bearing sub-assembly can include a roller and straps wrapped partially around the roller. Each strap is connected to at least one of the hub and the collar. And at least one of the straps can be connected to the roller while at least one of the straps can be circumferentially free of the roller. The hub and collar are moveable relative to each other along the selected direction for a distance that is approximately half of a circumference of the roller. Methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system.

Abstract: A light weight bearing cage assembly (100) consisting of a plurality of snap-on bridge elements (104) coupled between first and second cage support rings (102A, 102B) conforming to the surfaces of adjacent rolling elements (10). The snap-on bridge elements maintain rolling element (10) in separation, provide rolling element retention within the bearing assembly, and function as a lubrication reservoir between the rolling elements for grease lubricated bearings. Each snap-on bridge element may be individually removed and replaced by snap-on engagement with the first and second cage support rings. Optional locking clips or rings (300, 302) fitted over each snap fitting end of the bridge elements optionally provides additional security against accidental uncoupling of the bridge elements from the first and second cage rings.

Abstract: A roller bearing assembly includes an annular outer ring with first and second outer ring shoulders that define a first raceway in the outer ring. An annular inner ring may be disposed substantially concentrically within the outer ring, the inner ring including a base portion and first and second inner ring shoulders that extend from and are integral with the base portion to define a second raceway in the inner ring. A plurality of rolling elements may be arranged between the inner ring and outer ring and within the first and second raceways to rotatably couple the outer ring to the inner ring.

Abstract: A steel retainer (3), which retains needle rollers (2), is formed from a steel plate containing 0.15 to 1.10% by mass of carbon. After being formed, the steel plate is subjected to induction heat treatment which includes induction hardening and induction tempering. Such heat treatment can be carried out efficiently in a short period of time, using compact treatment facilities, even in small-lot production. The retainer (3) thus formed is sufficiently resistant to wear and surface damage, and is high in fatigue strength and fracture strength as a whole.

Abstract: An angular contact ball bearing cylindrical retainer element (100) with a reduced mass, reduced axial width, and a rigid “crown” shape. The rigid crown shape of the cylindrical retainer element (100) defines a plurality of uniformly spaced cylindrical ball receiving pockets (104) about the circumference of the cylindrical retainer (100), each receiving pocket partially open to a slot (108) on an axial end of the retainer (100) and enclosed at an opposite axial end to define a continuous axial side rail (110).

Abstract: A rolling bearing assembling method includes: providing a subassembly member in which a cage and an outer ring raceway of an outer ring are combined with each other; disposing a rotary member that includes groove portions formed on an outer circumference thereof, concentrically with the outer ring so that the plurality of groove portions confront respectively pockets of the cage; disposing a guide member including a guide hole, above the rotary member; supplying tapered rollers from the guide hole between the pockets and the groove portions, respectively; rotating the rotary member by a predetermined angle so that the tapered rollers are pushed radially outward by raised portions between the adjacent groove portions thereby accommodating the tapered rollers into the pockets, respectively; providing the seal ring on the inner ring raceway; and assembling the hub main body together with the outer ring.

Abstract: An apparatus and associated method involving an actuator assembly having an actuator body defining a bore and a bearing assembly in the bore. The bearing assembly has a shaft, and further has a bearing having an inner race that is affixed to the shaft and an outer race that is rotatable relative to the inner race. The bearing also has a sleeve defining an annular rigid portion circumscribing the outer race and affixed thereto. The sleeve further defines an annular predictably deformable portion depending from the rigid portion that is entirely disposed longitudinally distant from the outer race and sized to deform when press fit into the bore to operably align the shaft in the bore.

Abstract: Provided is a fixed type constant velocity universal joint, including: an outer joint member having an inner spherical surface provided with a plurality of track grooves extending in an axial direction; an inner joint member having an outer spherical surface provided with a plurality of track grooves extending in the axial direction in pairs with the plurality of track grooves of the outer joint member; a plurality of balls interposed between the plurality of track grooves of the outer joint member and the plurality of track grooves of the inner joint member so as to transmit torque; and a cage interposed between the inner spherical surface of the outer joint member and the outer spherical surface of the inner joint member so as to hold the plurality of balls, at least one of the plurality of track grooves of the outer joint member and the plurality of track grooves of the inner joint member being formed by cold-forging finishing, in which components including the outer joint member, the inner joint member, t

Abstract: An assembly of a pair of roller bearings in which the inner bearing rings are axially spaced apart by a first member and the outer bearing rings are spaced apart by a second member with one of the inner or outer ring of each bearing being an axially outer bearing ring spaced axially further from the outer bearing than the other ring of that bearing. The method comprises forming an assembly of the two members and bearings in which one of the axially outer bearing ring is a loose fit on one of the first and second members, and then axially moving the axially outer bearing ring of the one bearing which is loose fit in a direction towards the other bearing to create a pre-load, and then increasing the degree of pre-load to effect elastic deformation of that ring and thereby create a shrink fit type interface load.

Abstract: A device is provided for assembling a tapered roller bearing, which allows even a tapered roller having a large taper angle to be easily assembled to a pocket of a cage. The tapered roller (35) is inserted into the pocket (33) with the larger-diameter side of the tapered roller (35) in the lead from the inner side of the cage (30) and moreover from the smaller-diameter annular portion side of the cage (30), by which the tapered rollers (35) are assembled to the cage (30).

Abstract: A method of manufacturing a rolling bearing device for a road-wheel that includes an outer ring, an inner ring member, rolling elements arranged between the outer ring and the inner ring member, and a shaft body having the inner ring member mounted to an outer periphery includes a caulking step of radially outwardly bending and deforming a cylindrical portion formed at one end side of the shaft body by using a predetermined caulking pressure acting from the one end side toward other end side of the shaft body, thereby forming a caulked portion caulked to an axial end face of the inner ring member. Identification information indicating an existence of the caulked portion so formed is die-stamped on a visually observable surface at the other end side of the shaft body by using the caulking pressure during the caulking step.

Abstract: A ball roller bearing and to a method for the installation thereof. The ball roller bearing has an outer bearing race, and an inner bearing race, and a plurality of ball rollers, which are disposed between the bearing races and are held at equal distances to each other by a bearing cage. For this purpose, the ball rollers have a width of approximately 70% of the diameter of a spherical shape thereof, and roll with bearing surfaces thereof in two groove-shaped raceways, the depth of which is smaller than the distance between the outer and inner bearing race. The cage pockets of the bearing cage have a cross-sectional contour of a ball roller disposed in the longitudinal and transverse directions to the circumferential direction. The method for installation of the ball roller bearing is a cross/oblique pivot mount between the inner and outer bearing races and the ball rollers.

Abstract: The invention relates to a first bearing arrangement (1) and a method for the manufacture thereof, with a first bearing ring (3) forming a structural unit (16) with a radially inwardly directed axial projection (11) with a radially outwardly directed resilient element (13) and a first running surface (5), and a second bearing ring (2) with a radially outwardly arranged axial projection (10) with a radially inwardly directed resilient element (12), with a second running surface (4), and a single-piece rolling body cage (6) which receives distributed over the circumference rolling bodies (8) which roll on the running surfaces (4, 5), wherein the rolling body cage (6) radially engages over the two resilient elements (12, 13).

Abstract: A roller bearing, particularly for mounting the wheel of a commercial vehicle, has two angular-contact ball bearings placed in an O-arrangement relative to one another. The roller bearing is designed such that each angular-contact ball bearing is associated to a roller body row having a common inner ring with the angular contact ball bearing, wherein the two roller body rows are facing one another and form inner bearing rows.

Abstract: A roller bearing assembly includes an annular outer ring with first and second outer ring shoulders that define a first raceway in the outer ring. An annular inner ring may be disposed substantially concentrically within the outer ring, the inner ring including a base portion and first and second inner ring shoulders that extend from and are integral with the base portion to define a second raceway in the inner ring. A plurality of rolling elements may be arranged between the inner ring and outer ring and within the first and second raceways to rotatably couple the outer ring to the inner ring.

Abstract: A guide rail includes a base rail with at least one finger extending from a first portion of the base rail, and at least one finger extending from a second portion of the base rail. A race insert is mounted against the fingers. A first race way is associated with the at least one finger extending from the first portion of the base rail. A second race way is associated with the at least one finger extending from the second portion of the base rail. The first and second race ways have different load transmission directions. The load transmission direction of the first race way is non-parallel to the at least one finger extending from the first portion of the base rail. The load transmission direction of the second race way is non-parallel to the at least one finger extending from the second portion of the base rail.

Abstract: In a state in which a first ball 103 is assembled in between a first inner peripheral raceway surface of an outer ring 105 and an outer peripheral raceway surface of a shaft 101, and a second ball 104 is placed in between a second inner peripheral raceway surface of the outer ring 105 and an outer peripheral surface of the shaft 101, a first distance “a” from a plane “q” generally perpendicular to a central axis “p” of the shaft 101 to the second ball 104 and a second distance “b” from the plane “q” to a stepped portion 107 of the shaft 101 are measured. Then, the size in the axial direction of the inner ring 102 is adjusted on the basis of a difference between the first distance “a” and the second distance “b”.

Abstract: To provide a bearing structure in which the processing is easy, and the manufacturing cost can be reduced.

Abstract: The invention relates to a method for the production of a roller bearing (5) which does not require machining, wherein the roller bearing (5) has a bearing inner ring and a bearing outer ring (3a?, 3b?) and at least one rolling body row (9) guided between said rings in raceways (8a, 8b). In order to be able to implement the production of the bearing rings (3a?, 3b?) including the raceways (8a, 8b) for the rolling bodies (9) according to a forming method which does not involve machining, in a manner which is more cost-effective with respect to known production methods, a ring element (3) is initially produced from a sheet metal blank (1) by means of dies and pressure forming, the ring element having a section (3a) lying radially on the inside, a ring-shaped section (3b) lying radially on the outside, and having a central recess (4), raceways (8a, 8b), and preferably a set breaking point (6) between the two ring-shaped sections (3a, 3b).

Abstract: A rolling-element bearing 1 comprising an inner race 3, an outer race 2 and an array of rolling elements 4 arranged within a bearing cage 5 situated between the two races 2, 3, the inner surface of the bearing cage 5 being piloted on the inner race 3 for limiting eccentric movement of the cage 5 within the bearing 1 and further having a reservoir 9 formed between a pair of circumferential weirs 6a, 7b on the cage 5, the outer surface of the inner race 3 comprising a raised land portion 3d for contacting oil 9a in the reservoir 9 thereby to control the relative speed of the cage 5 and the inner race 3, wherein the radial depth of each weir 6b, 7b is greater than the maximum radial clearance between the land portion 3d and the cage 5 for maintaining said controlling contact between the land portion 3d and the oil 9a during said eccentric movement of the cage 5.

Abstract: A full complement taper roller bearing consists of an inner ring or cone having an inner track on its radially outer conical surface, and an outer ring or cup having an outer track on its radially inward conical surface and one or more rows of taper rollers having a contact angle of less than 30 degrees freely disposed between the inner and outer rings and guided between said tracks. Each row of rollers is axially located within a recess on the inner track defined by a shoulder abutment disposed at least at the edge of the inner track having the greatest diameter and each of the rollers is in contact with the inner track over the entire length of the taper roller in the axial direction of the bearing. A method of assembly is also enclosed.

Abstract: A bearing structure, for example of a needle roller bearing, has an outer surface defined in part by a composition comprising a first polymeric material having a Rockwell hardness (m scale) in the range 80 to 130. Preferred materials are polyaryletherketones, for example polyetheretherketone.

Abstract: A bearing race and pinion bearing race installation tool kit or set includes a pneumatic and manual driver handles in combination with a multiplicity of separate drivers. The component parts may be selected from the kit, combined and then used for installation of a bearing raceway.