Abstract: A disc brake hub and rotor assembly for a heavy-duty vehicle. The disc brake hub and rotor assembly includes a hub receivable on and rotatable about an axle spindle of a heavy-duty vehicle. A rotor is connectable with the hub for rotation with the hub. The rotor includes a disc segment, a flange mounting segment, and a cylindrical sleeve segment connecting the disc segment and the flange mounting segment. A flange is connectable with the flange mounting segment and separately with the hub. The flange mounting segment of the rotor has an inboard facing surface at least part of which is for engaging head portions of wheel studs. The inboard facing surface is substantially planar and free of wheel stud clearance reliefs. A transition region is located between the flange mounting segment and sleeve segment and is also free of wheel stud clearance reliefs.

Abstract: An amount of decrease ?C in an axial clearance of a hub unit bearing is found based on an amount of expansion ?D of an inner ring of the hub unit bearing, which is the difference between the outer-diameter dimension D1 of the inner ring after the inner ring is externally fitted with a tubular fitting portion of a hub spindle of the hub unit bearing and after formation of a swaged portion of the hub spindle, the inner ring being held between the swaged portion and a stepped surface of the hub spindle, and an outer-diameter dimension D0 of the inner ring before the inner ring is externally fitted with the tubular fitting portion.

Abstract: A method for packing rolling elements in a bearing providing using a bearing ring fixing component to fix a first bearing ring, preventing it from shifting when subjected to radial compression; inserting two first packing supports between a first bearing ring raceway and a second bearing ring raceway at a predetermined circumferential angle, the two first packing supports dividing the bearing in a circumferential range into a compression zone lying and a warping zone lying outside the range of the circumferential angle; and using a bearing ring compression component to apply a compressive load to a circumferential portion of the second bearing ring. The compressive load directed towards the first bearing ring in a radial direction, to force a radial gap between the first bearing ring raceway and second bearing ring raceway to decrease, such that a window suitable for packing the rolling elements is formed in the warping zone.

Abstract: A method of assembling a vehicle driveline component that includes: positioning a rotary component and first race member on a fixture such that the first race member is concentric with a first race of the component; offsetting the first race member along the rotational axis relative to the first race; providing an annular bearing arrangement having balls and spacers; positioning the arrangement such that the centers of the balls are along a loading cylinder disposed concentrically about the rotational axis; moving the arrangement so the balls seat in the first race and the centers are distributed along an installation circle that is: a) larger in diameter than the loading cylinder if the first race is an outer race of a bearing assembly; or b) smaller in diameter than the loading cylinder if the first race is an inner race of a bearing assembly.

Abstract: A drive unit includes a housing and a pinion having a head and a shaft. The shaft extends through a pinion-support portion of the housing. A tail bearing supports the shaft and has an outer race fixed to the pinion-support portion and an inner race received on the shaft. The inner race is brazed to the shaft. The drive unit may be assembled by installing a tail-bearing cup and a head-bearing cup in the housing and inserting the pinion in the housing with the shaft extending through the cups. The method further includes installing a tail-bearing cone onto the shaft to be seated on the tail-bearing cup and urging the cups toward each other. The method also includes brazing the tail-bearing cone to the shaft while the cups are urged toward each other.

Abstract: A self-aligning roller bearing having inner and outer bearing ring elements and at least one row of roller elements disposed in between. The inner bearing ring element having a retaining flange provided on a first axial side of the roller bearing being configured for preventing the roller elements from falling out from the roller bearing. The roller bearing having a first sealing ring element located at the first axial side for sealing the first axial opening, the first sealing ring being rotatable in relation to the inner bearing ring and seals against a sealing mating surface of the inner bearing ring. The retaining flange has at least one filling slot configured for allowing the roller elements to be inserted in-between the inner and the outer bearing ring elements during assembly of the roller bearing, and the sealing mating surface being axially outside the at least one filling slot.

Abstract: A rotary joint which, in order to limit the mutual rotation of the outer bearing ring (2) with respect to the inner bearing ring (2), is provided with a raceway (11), which is limited by one or two stops (14) and in which a projection connected to the outer bearing ring engages. In order to ensure that a rotation greater than 360° is possible, the raceway is of helical design.

Abstract: A roller bearing assembly apparatus is provided that, when assembling the roller bearing, effectively prevents rollers R that are assembled inside an outer ring W from becoming tilted or dropping out from the state immediately after assembly. After the rollers R are aligned into an annular shape by an alignment jig 14, the roller group G aligned in an annular shape is pushed out from the alignment space 26 of the alignment jig 14, and pushed inside a guide hole 39 of an insertion jig 15. As a result, with the diameter of the roller group G being prevented from expanding by the inner-circumferential surface of the guide hole 39, a retaining member 36, the diameter thereof being elastically reduced, is inserted inside the roller group G.

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 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: A method for producing a composite rolling bearing (1) having a bearing flange (3) and at least one rolling bearing (4, 5) held on the bearing flange (3) by an inner ring (6, 7). In order to be able to fix the inner ring (7) on the bearing flange (3) with axial preloading without expansion, the inner ring (7) is acted upon by a holding-down device (23) that radially holds down the inner ring (7) and is preloaded against the inner ring (7) by a regulated axial force (F), and, by way of an advancing cone (21) introduced radially on the inside axially into the bearing flange (3), material (11) present on the bearing flange (3) is displaced radially towards the outside into a recessed formation (15, 16) in the inner ring (7).

Abstract: An interlocking nut and washer system complies with new standards identified in the Society of Automotive Engineers (SAE) Recommended Practice J2535, Setting Preload in Heavy-Duty Wheel Bearings, and with maintenance recommendations issued by the Technology Maintenance Council (TMC) Recommended Practice RP618, Wheel Bearing Adjustment Procedure. The system includes an improved inner washer, adjustment nut, intermediate washer, and outer nut that interlocks with the intermediate washer following the introduction of an established level of preload force by the adjustment nut. The inner washer isolates the adjustment nut from the inner bearing race to eliminate frictional wear. An increase in outer diameter of the inner washer provides an interference capability that serves as a safety factor to prevent separation of the wheel hub from the axle spindle in event of bearing failure. The inner washer includes markers to establish the final adjusted preload or the endplay position of the adjustment nut.

Abstract: An assembly jig for a radial roller bearing comprises a retaining structure having a plurality of axially-projecting projections configured to retain a plurality of roller bodies disposed in a ring-shape during a bearing assembly process. The roller bodies are supportable in a first radial direction on a first component and each roller body contacts two adjacent projections in a second radial direction, which is opposite of the first radial direction. The projections are configured to press the roller bodies against the first component and such that a portion of the roller bodies projects past the projections in the second radial direction. The assembly jig is removable from the roller bearing in the axial direction after final assembly of the roller bearing.

Abstract: A bearing device includes inner ring rolling surfaces formed so that the external radius of inner end portions of a first inner ring and a second inner ring is smaller than a first separation distance and formed so as to have an external radius that becomes larger from an inner side toward the other side, and outer ring rolling surfaces formed so that the internal radius of outer end portions of a first outer ring and a second outer ring is larger than a second separation distance and is formed so as to have an internal radius that becomes smaller from the outer side toward the inner side.

Abstract: A first inner ring and a second inner ring respectively include inner ring rolling surfaces formed so that the external radius of inner end portions is smaller than a first separation distance and formed so as to have an external radius that become larger than the first separation distance, and a first outer ring and a second outer ring respectively include outer ring rolling surfaces formed so that the internal radius of outer end portions is larger than a second separation distance and formed so as to have an internal radius that becomes smaller than the second separation distance, and the first outer ring and the second outer ring are formed integrally with each other to form an outer ring.

Abstract: A method for forming a wheel bearing apparatus where the end portion of the cylindrical portion is pre-formed as a cylinder prior to its plastic deformation to form the caulking portion. A caulking tool with a punch and a swing shaft abuts against the end portion of the cylinder at a predetermined inclined angle relative to the inner circumferential surface of the cylinder. Teeth on the punch form the face-spline by plastically deforming the end face of the caulking portion. The swing shaft central axis is inclined at an angle relative to a central axis of the wheel hub. The face-spline is formed simultaneously with the formation of the caulking portion by advancing the caulking tool toward the wheel hub. A main shaft is rotated to cause a swing motion of the caulking tool.

Abstract: A method of manufacturing a rolling bearing device which can improve operational efficiency and can enhance productivity thereof is provided. The method includes the steps of: applying an adhesive agent to fitting portions formed between inner rings of two rolling bearings which are arranged coaxially in a spaced-apart manner in an axial direction and a shaft which is fitted in the inner rings and fitting portions formed between outer rings of two rolling bearings and a sleeve which is fitted on the outer rings; bringing the inner rings and the shaft into fitting engagement and the outer rings and the sleeve into fitting engagement respectively; and welding, in a state where the inner rings to which the adhesive agent is applied in the adhesive agent applying step are brought close to each other due to pushing of the inner rings in the axial direction, the pushed inner rings to the shaft by laser welding using laser power which does not generate thermal deformation of the pushed inner rings.

Abstract: The invention relates to wheel bearing that is intended for a utility vehicle and includes a sleeve-shaped carrier shaft, in which an axle of the utility vehicle can be received in a concentric manner; a wheel hub; and a first roller bearing and a second roller bearing for rolling the wheel hub relative to the carrier shaft. In this case the second roller bearing is clamped axially against the first roller bearing on the sleeve-shaped carrier shaft by means of a press ring.

Abstract: The invention refers to a bearing unit and a method for its manufacture incorporating an outer race ring (1), an inner race ring (4) having an inner envelope surface with an axially tapering saw-tooth profile (6), a thin-walled axially slotted sleeve (7), having a tapering saw-tooth profile (9) on its outer envelope surface, cooperating with the saw-tooth profile (6) in the inner race ring (4) for increasing and decreasing the grip of the thin-walled sleeve against a shaft, when inner race ring (4) and sleeve (7) are mutually displaced, a flange (10) connected to the sleeve (7) and having tightening means (11) operable to cause the displacement between sleeve (7) and inner race ring (4), rolling bodies (12) positioned between inner and outer race rings, wherein the surface of the inner race ring (4) presenting the tapering saw-tooth profile (6) has been subjected to a turning operation followed by hardening.

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: 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 wheel bearing device, a method of assembling a wheel bearing device, an assembly configured by the wheel bearing device and a drive shaft, and a method of assembling the assembly, in which the wheel bearing device eliminates a nut tightening operation, is capable of reducing costs, and has a projection and recess mating structure that can firmly connect an outer joint member and a hub. Axial direction load is applied to a stepped surface is provided on an outer diameter surface of an outer joint member. A projection that extends in the axial direction and is provided on one of a stem shaft of the outer joint member and an inner diameter surface of a hole section of a hub is press-fitted into a partner member along the axial direction, As a result, a recess that is in close contact with the projection over an overall mating contact area is formed in the partner member, thereby configuring a projection and recess mating structure.

Abstract: A method for manufacturing a bearing housing comprising: selecting a configuration for housing and manufacturing the housing the configuration. The selected housing configuration comprises a bearing section and a base having a cylindrical shape. The bearing section and base are substantially aligned centrally along an axis. A plurality of members extends between the bearing section and the base. The plurality of members has a length and a width, and, in the configuration, each of the plurality of members has a side that is substantially non-perpendicular with respect to the bearing section and the base. At least one of the plurality of members extends at an angle from the bearing section to the base; the plurality of members having a curve relative to the axis; and the width of the plurality of members decreasing or increasing along the length of the plurality of members.

Abstract: A fan gear drive system includes a torque frame having a base with integrated gear shafts circumferentially spaced relative to one another. Each shaft provides a shaft axis. A bearing assembly is mounted on each of the gear shafts and provides a bearing assembly. The bearing assembly includes a spherical bearing configured to permit angular movement of the bearing axis relative to the shaft axis.

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: The present invention relates to device and method for manufacturing a wheel bearing assembly that reduces an error rate by reducing stress concentrated on rolling elements in manufacturing processes of the wheel bearing assembly. The device for manufacturing a wheel bearing assembly may include: a base, on which a hub is mounted, supporting the hub in a case of orbital-forming; a forming tool mounting portion mounted above the base; a rotating portion rotatably connected to an outer ring and rotating or pivoting the outer ring about a hub axis in a case of the orbital-forming; and a forming tool mounted at the forming tool mounting portion, rotating on a first axis slanted to the hub axis by a predetermined angle, and simultaneously orbiting about a second axis parallel with the hub axis.

Abstract: A method of extending the life of a journal bearing assembly in a solid fuel pulverizer includes: removing a first lower journal bearing from a journal shaft and a lower bearing seat of a lower bearing housing; removing a first upper journal bearing from the shaft and an upper bearing seat of an upper bearing housing; modifying the lower and upper bearing seats; modifying lower and upper shoulders on the journal shaft; disposing the second lower and upper journal bearings on the modified lower and upper bearing seats; disposing a new journal bearing spacer between the second lower and upper journal bearings; disposing a new journal bearing collar between the upper shoulder and the second upper journal bearing; filling a cavity defined by the lower and upper journal housings with grease; and disposing a seal assembly between the shaft and one end of the upper journal housing opposite the lower journal housing to prevent the ingress of solid fuel into the cavity of the journal assembly.

Abstract: An integrated bearing assembly comprising first and second cylindrical members radially spaced apart from one another along an axis of rotation. The first cylindrical member supports a first portion of a first bearing track while the second cylindrical member supports a second portion of the first bearing track. The first and the second portions face one another and a plurality of bearing elements are retained therein to facilitate relative rotation. At least one of the first and second portions comprises a pair of adjacent V-shaped bearing surfaces. One of the first and the second cylindrical members supports a retaining element which has a bearing surface that forms at least a portion of one of the first and second portions of the first bearing track. The retaining element is adjustable, in a direction parallel to the axis of rotation, to adjust a pressure to be applied to the plurality of captively retained bearings.

Abstract: A lightweight hybrid bearing assembly and method of making thereof is disclosed. The bearing assembly includes an inner race and an outer race radially spaced from the inner race. One or both of the inner race and the outer race have a convex bearing surface. Between the inner race and the outer race, a plurality of ceramic roller elements are received. The ceramic roller elements have a concave bearing surface that engages the convex bearing surface or surfaces. Among other things, this accommodates axial misalignment of the races relative to one another.

Abstract: An installation structure of bearings and an installation method are provided that can reduce the amount of damage caused by tightening bearings supporting a fulcrum shaft that pivotally supports a gun arm, as well as simplify operation and maintenance. One race is fixed among an inner race and an outer race constituting a bearing, which supports a fulcrum shaft (30) pivotally supporting a first gun arm (11) and a second gun arm (12) constituting a welding gun (10) to be rotatable, and relates to an installation structure (38) of bearings that receive a combined load of an axial load acting in an axial direction of the fulcrum shaft (30) and a radial load acting in a radial direction thereof. The other race among the inner race and outer race constituting the bearing is installed in the radial direction to be movable in a direction in which there is no longer a radial gap or axial gap between the inner race, outer race and a revolving body disposed between the outer race and the inner race to revolve freely.

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 method and apparatus for assembling bearings and a stub into a bore of a hub. The apparatus includes a block defining a receiving position for the hub. A feed mechanism arranges plurality of bearings in the form of an annular array. A first mandrel is axially displaceable toward one side of the hub to push the annular array of bearings into the bore of the hub. A second mandrel is axially displaceable toward an opposite side of the hub to push a stub within the annular array of bearings in the bore of the hub. The stub includes at least one outwardly biased detent for retaining the bearings in the hub.

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 needle roller bearing comprises an outer ring having a split part in a circumferential direction, a plurality of rollers which can roll along an inner diameter surface of the outer ring, and a cage holding the plurality of rollers. The outer ring has an engaging click protruding inward along a diameter at a width-direction end thereof to prevent the cage from moving in an axial direction.

Abstract: To provide a wheel support bearing assembly, in which the sufficient proof strength of an inner race during assemblage onto the vehicle body can be secured without its function being lowered, the wheel support bearing assembly includes an outer member, an inner member, and rows of rolling elements interposed therebetween. The inner member includes an hub axle having a flange and an inner race on an inner race mount, with raceways defined in the hub axle and the inner race. The inner race has a counterbore at its inboard end. The hub axle has a plastically deformed portion which engages an axially oriented surface of the counterbore when radially outwardly crimped and does not protrude outwardly beyond an inboard end face of the inner race. The difference P between the inner race mount and an outer peripheral face of the plastically deformed portion is 0.13 mm or more.

Abstract: The invention relates to a device for installing and removing a bearing assembly (3) which consists of a chock in which a trunnion hearing is arranged on a supporting roller stud (1) of a rolling stand. The aim of said invention is to replace said assembly by means of an operationally reliable device without carrying out modifications or large-scale modifications of the supporting roller stud (1), in particular to obtain reproducible mounting forces in order to ensure best long-term wear-less service possible, best possible rotation and easily controlled stripping forces for reliable operation of the rolling stand. The invention also relates to a nut (8) fixed to the roller stud (1) prestressed against the bearing assembly (3). According to said invention, a stripping device (11) can be temporarily coupled to the bearing assembly (3), the hydraulic cylinder (15) thereof resting against the roller stud (1).

Abstract: The invention refers to a bearing unit and a method for its manufacture incorporating an outer race ring (1), an inner race ring (4) having an inner envelope surface with an axially tapering saw-tooth profile (6), a thin-walled axially slotted sleeve (7), having a tapering saw-tooth profile (9) on its outer envelope surface, cooperating with the saw-tooth profile (6) in the inner race ring (4) for increasing and decreasing the grip of the thin-walled sleeve against a shaft, when inner race ring (4) and sleeve (7) are mutually displaced, a flange (10) connected to the sleeve (7) and having tightening means (11) operable to cause the displacement between sleeve (7) and inner race ring (4), rolling bodies (12) positioned between inner and outer race rings, wherein the surface of the inner race ring (4) presenting the tapering saw-tooth profile (6) has been subjected to a turning operation followed by hardening.

Abstract: In an assembling method for roller bearing assembly according to the invention, a cage 25 featuring high general-purpose versatility is used whereas a retainer ring 40 for preventing the drop-off of first-row tapered rollers 18a is fitted in a sub-assemble member 20 at place diametrically inwardly with respect to the first-row tapered rollers 18a. Subsequently, a hub body 16 is combined with an outer ring 13 having the first seal ring 15 and the sub-assemble member 20 mounted thereto, as pushing out the retainer ring 40 by means of a step portion defined between a smaller-diameter cylindrical surface portion 30 and a first inner raceway 28 of the hub body 16.

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 constant velocity joint, wherein all of those rolling elements excluding a plurality of rolling elements are divided into a plurality of rolling element groups and arranged along the inner diameter part of a roller member. The excluded plurality of rolling elements are dispersed in first to third cam grooves at intervals in the circumferential direction. When the rolling elements are pressed in the radial outer direction by the first to third pressing faces of a cam rotating in the arrow A direction, they are simultaneously press-fitted into first to third clearances between the rolling elements from the side of the inner diameter part of the roller member.

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.

Abstract: A method and apparatus for assembling bearings and a stub into a bore of a hub. The apparatus includes a block defining a receiving position for the hub. A feed mechanism arranges plurality of bearings in the form of an annular array. A first mandrel is axially displaceable toward one side of the hub to push the annular array of bearings into the bore of the hub. A second mandrel is axially displaceable toward an opposite side of the hub to push a stub within the annular array of bearings in the bore of the hub. The stub includes at least one outwardly biased detent for retaining the bearings in the hub.

Abstract: A radial anti friction bearing (1) which is configured as a single-row spherical roller bearing, which includes an outer bearing ring (2), an inner bearing ring (3) and a plurality of spherical rollers (5) that are arranged between the bearing rings (2, 3). The spherical rollers have respectively two side faces (6, 7) which are flattened symmetrically from a spherical base shape, are retained with uniform spacing to each other by a bearing cage (4) and roll with their running faces (8) in two groove-shaped raceways (11, 12) which are defined, respectively, by two axial rims (13, 14 and 15, 16). The width (bK) of the spherical rollers (5) between their side faces (6, 7) is at least 70% of the diameter (dK) of the spherical base shape and as a result, is greater than the distance (aB) between the axial rims (13, 15 and 14, 16) of the raceways (11, 12) in the bearing rings (2, 3).

Abstract: A method for assembling a taper roller bearing, wherein a radially expandable and retractable clamping tool acts to retain the rollers of the roller bearing, a final assembly is formed by putting the inner and outer rings of the roller bearing together, and the clamping tool is subsequently withdrawn.

Abstract: A support structure carries a thrust load of a transmission which includes a torque converter having an impeller and a turbine opposite to each other with a stator therebetween. A thrust needle roller bearing having needle rollers arranged in two rows is provided at, at least one of places respectively between the stator and the impeller and between the stator and the turbine. The support structure carrying a thrust load of the transmission, a method of manufacturing the support structure and the thrust needle roller bearing are thus obtained, with an improvement in inflow and outflow of a lubricating oil, a reduction of the differential slip of the needle rollers, and an improvement in strength durability.

Abstract: A bearing device for a wheel includes an inner ring member including an inner shaft and an inner ring constituent member; an outer ring member; a rolling element; and a wheel-mounting flange formed on a peripheral surface of the inner shaft at a position close to an outer end portion in a vehicle-width direction; a hobbed portion formed on the peripheral surface at a position close to an inner end portion in the vehicle-width direction; and a coupler ring fitted to a periphery of the hobbed portion. A heat-treated portion of the peripheral surface extends from an inner portion of a base of the wheel-mounting flange in the vehicle-width direction, to a position which is offset from an outer edge of the hobbed portion in the vehicle-width direction toward an outer side in the vehicle-width direction by a predetermined distance, and at which heat treatment does not influence the hobbed portion.

Abstract: A cross-roller bearing with plug, which has the high stiffness enough to allow the cross-roller bearing to turn with causing no jar or wobble, and also the production process to realize the cross-roller bearing with plug with ease and accuracy. With the cross-roller bearing with plug, more than one roller fills the space between the outside and inside races through a loading bore cut in any one of the races, and then a plug fits into the loading bore. The plug experiences cutting on its outside surface at the same time with the cutting of the circular outside surface of the outside race at once. The inside surface of the plug is also worked together with the cutting of the raceway surface around the inside circular surface of the outside race at a time.

Abstract: A sealing device 12b of a hub unit bearing O has a first slinger 16 fixed to an inner ring 5, a second slinger 17 fixed to an outer ring 1, and a sealing portion 18 which is fixed to the first slinger 16 and is slide-contacted with the second slinger 17. A magnetic encoder 20 is fixed to the first slinger 16. The magnetic encoder 20 and the sealing portion 18 are bond-fixed to the first slinger 16 with the same adhesive agent.

Abstract: A needle roller bearing comprises an outer ring having a split part in a circumferential direction, a plurality of rollers which can roll along an inner diameter surface of the outer ring, and a cage holding the plurality of rollers. The outer ring has an engaging click protruding inward along a diameter at a width-direction end thereof to prevent the cage from moving in an axial direction.