Abstract: At least one embodiment of the invention generally relates to a bushing kit (102) and method of installing the same with a mandrel (300) having a tapered region (304). The bushing kit comprises an inner member (110) and an outer bushing (108). The inner member may include an inner surface (126) having an engagement portion, such as a coating, plating, and/or lining, such as a self-lubricating coating. The method of installing the bushing kit (102) includes passing the tapered portion of the mandrel through the outer bushing (108) to radially expand the outer bushing into the structural workpiece (104) and possibly induce some amount of residual compressive stress in the structural workpiece (104). Contemporaneously, the inner member (110) is passed into the radially-expanded outer bushing (108) before the outer bushing is permitted to radially inwardly rebound or spring back. The outer bushing (108) is then permitted to radially contract onto the inner member to form an interference fit therewith.

Abstract: A caster and leg assembly for supporting a piece of furniture on a floor. The assembly includes a caster affixed within a recessed area formed in the bottom of a wooden or plastic furniture leg to create a strong support for the furniture as well as create a good appearance. The caster has at least one spherical roller supported within the housing to allow the furniture to be readily movable omnidirectionally. With one spherical roller, the weight of the furniture acts at the center of the spherical roller. In one embodiment, there are three spherical rollers located equidistant from the vertical center line of the assembly to support the furniture weight equally by the spherical rollers. A glide can be readily attached and detached from the bottom of the caster and, when attached, the glide cup covers the spherical rollers and presents a flat, planar bottom surface.

Abstract: A resilient mount (30), such as a center bearing isolator mount includes an inner sleeve (52) into which is molded an elastomer/rubber isolator (60), and an insert (70). These components are prepared as a sub-assembly (50) and axially inserted into the opening of an outer bracket (32), whereby fingers (76) deflect radially during insertion and snap-fit radially outward once received through the bracket opening to preclude disassembly. A lower insertion force is required to assemble the components.

Abstract: An electric motor includes a stator, a housing supporting the stator and having a bearing seat with an inner surface and an inner end, a bearing having an outer surface, a shaft rotatably supported by the bearing, and a rotor supported by the shaft. The motor also includes a tolerance ring having an interior surface, an exterior surface disposed against the bearing seat inner surface, and a plurality of elastic corrugations. Each of the elastic corrugations projects radially from the interior surface, defining a shoulder section disposed between the bearing and the inner end of the bearing seat. The shoulder section generates a spring force against the bearing to axially and radially support the bearing and to axially preload the bearing.

Abstract: A method includes heating a housing of an electric machine to thermally expand the housing, positioning a mount having power and control electronics assembled thereon and in contact therewith in the housing and against an internal stop defined within the housing, and allowing the housing to cool and thermally contract against the mount thereby forming an interference fit between the housing and the mount. The interference fit secures the mount within the housing. The mount and the housing have coefficients of thermal expansion such that the interference fit is maintained across an operating temperature range of the machine. The electric machine may also include a segmented or non-segmented stator within the housing.

Abstract: A steady bearing for supporting an end of an impeller shaft with respect to a mixer vessel wall, includes a downwardly projecting cylindrical hollow sleeve mounted to the end of the shaft and projecting away from the end of the shaft, an upwardly projecting bearing holder mounted to the bottom of the vessel wall and projecting upwardly inside part of the hollow portion of the sleeve, and a roller bearing assembly mounted in between the bearing holder and the sleeve.

Abstract: A method for manufacturing a bearing mechanism used in an electric motor includes (a) inserting an annular member into a substantially cylindrical closed-bottom cup member to bring a first end portion of a shaft fitted to the annular member into contact with a thermoplastic resin member arranged on an inner bottom surface of the cup member, bringing the annular member into contact with the shaft in a direction leading from an opening of the cup member to a bottom portion of the cup member, and fixing the annular member to the cup member; and (b) deforming the resin member by externally heating the bottom portion of the cup member and applying a load acting toward the bottom portion on a second end portion of the shaft. Further, an electric motor includes a rotor unit, a stator unit, and the bearing mechanism manufactured by this method.

Abstract: An axle differential mechanism includes a carrier, a bearing supporting the carrier in rotation about an axis, a bearing adjuster including a adjuster sleeve held against rotation and axial displacement, and an adjuster nut formed with first teeth, and engaged by screw threads with the adjuster sleeve such that rotation of the adjuster nut about the axis causes the adjuster nut to contact the bearing and produce a preload force on the bearing between the adjuster nut and the carrier, and a locking device secured against displacement for engaging the adjuster nut, said engagement preventing rotation of the adjuster nut relative to the bearing and maintaining the preload on the bearing.

Abstract: A method for aligning a female portion of an articulated connector while it is still mounted to the end structure of a rail car to a reconditioning fixture is disclosed. The fixture is removably secured to the female connector. A bearing is preferably secured to the fixture such that its bore is aligned with the bore of the female connector. An alignment tube is then preferably inserted into the bores of the bearing and female connector. A centering gauge can be placed on the alignment tube. The bearing can then preferably be adjusted so that the alignment tube is positioned against the centering gauge.

Abstract: A roller assembly for use with an agricultural baler is configured to be mounted to a housing of the baler in a manner that avoids transmitting an undue axial load to a bearing of the roller assembly. An assogated method is disclosed.

Abstract: A method for making a dual actuator pivot, wherein the need for adhesive bonding is eliminated and assembly time is minimized. An upper sleeve assembly includes an upper and lower ball bearing press fitted therein and a lower sleeve assembly includes an upper ball bearing press fitted therein, the first and second sleeve assemblies being press fitted to a shaft having a ball bearing press fitted at the base of the shaft. A predetermined axial load that is tuned to select a desired resonance frequency for the first and second actuator bearing assemblies may be applied during the press fitting of the first and second sleeve assemblies. The shaft may be chilled to shrink the shaft. Alternatively, the components may be heated.

Abstract: The present invention relates to a gas turbine engine comprising a shaft, a bearing, a coupling supported by the bearing, the shaft being engaged by an end trunnion inside the coupling and fixed to the coupling by means of a cylindrical nut. The engine is characterized in that the nut is in axial abutment in a first direction against the coupling and the trunnion is screwed onto the nut, a slotted stop ring housed in an annular groove of the nut forms an axial abutment in the direction opposing the first direction, so as to allow the removal of the trunnion from the coupling by unscrewing the nut.

Abstract: A rotor assembly for an electric machine includes a rotatable shaft, a rotor core coupled to the shaft for common rotation, and an impeller coupled to the shaft for common rotation. A bearing is coupled to the shaft generally between the rotor core and the impeller. The bearing can include an outer race sized smaller than an opening defined by the machine housing. The bearing can include steel rolling elements such as steel balls or generally cylindrical steel rollers. An adaptor sleeve can be disposed generally around the outer race. The adaptor sleeve can be disposed within the opening defined by the housing for securing the adaptor sleeve and the bearing within the opening defined by the housing.

Abstract: Pressed shape steel, made of a low cost general steel material that is not hardened, forms a frame with long grooves cut therein. Guide rails, made of a specialized steel material that can be subjected to a hardening treatment, are hardened. Thereafter, outer surfaces of the hardened guide rails are ground and the guide rails are integrally joined in the long grooves. Ball-rolling grooves are formed in the guide rails, thereby completing a guide-equipped frame for an actuator. Because the general steel material and the specialized steel material are principally ferrous materials, both exhibiting a Young's modulus at or above 170 GPa with substantially the same coefficient of linear thermal expansion, the frame needn't be increased in size or have a complex internal structure to reinforce the strength of the frame, and the guide rails remain securely retained in the grooves even if the actuator experiences changes in temperature.

Abstract: A method and assembly for mounting an auto rim and either motorcycle or auto tire as a motorcycle rear wheel. The assembly allows tires of different widths and diameters to be used on the rear of motorcycles that have single side swing arms and standard swing arms. The method and assembly allows a left side or right side drive which can be a belt or chain. A hub with bearings and spacers are mounted with a brake rotor disk and a drive pulley in tandem to produce a hub assembly.

Abstract: In a rolling bearing unit for a wheel of the invention, a first inner ring side raceway which confronts an outer ring side raceway formed on an inner circumferential surface of an outer ring is formed on an outer circumferential surface of a hub wheel, and a second inner ring side raceway is formed on an outer circumferential surface of an inner ring shaft portion. The inner ring shaft portion is made up of a large diameter shaft portion which is formed on an outer circumferential surface of the second inner ring side raceway and a small diameter shaft portion which is inserted into a shaft fitting hole in the hub wheel in such a manner as to pass therethrough. In addition, the inner ring shaft portion is connected to the hub wheel by forming a calking portion by calking an end portion of the small diameter shaft portion.

Abstract: Oil which will serve as a lubricating fluid of a fluid dynamic pressure bearing is degassed in a first environment under a first pressure which is lower than atmospheric pressure. First and second members of the bearing are place in a second environment under a pressure lower than atmospheric pressure and higher than the pressure in the first environment. The degassed oil is supplied to the gap between bearing surfaces of the first and second members while the first and second members are in the second environment under pressure lower than atmospheric pressure and higher than the pressure in the first environment. Subsequently the pressure in the second environment is increased to force the oil into the gap between the bearing surfaces of the first and second members of the hydrodynamic fluid.

Abstract: A fifth wheel hitch lube plate includes a support plate moldably coupled to a cover. By way of example, the support plate is a metallic plate with a number of openings and/or cavities. Some of the openings are configured to receive fasteners while other openings, referred to as cover locking cavities, are configured to cooperate with the cover during the molding operation to mechanically lock or couple the cover to the support plate. The cover locking cavities include an upper, narrow passage that is in communication with a lower, larger cavity. At least a portion of the cover is supported by a top surface of the support plate.

Abstract: A hydraulic locking and loosening device (40) is set on the neck of a rolling-mill roll or back-up roll with a conical part (3) and a cylindrical part (4), and comprising an oil-film bearing (7, 8), a spacer ring (16), a thrust bearing (15), a thrust ring (17), and a threaded lock ring (18). The locking device (30) comprises a body (21) inserted at the centre in a ram (22) to form a hydraulic actuator with two annular chambers (23), longitudinal arms (31), on each of which is provided a C-shaped notch (32), and cover (24) for closing the hydraulic chambers (23). A variant of the hydraulic locking and loosening device (40) is provided with a bayonet device for its engaging on the roll end.

Abstract: An apparatus and method for installing an intermediate bearing by press fitting the intermediate bearing between a center hub of a crankshaft and a center web of a crankcase and an apparatus that provides support for an intermediate bearing that is installed within the crankcase and coupled to the center web.

Abstract: A compact removal feature comprises a plurality of recesses, such as radius slots, on an inner diameter (ID) of a bearing inner ring. The removal tool can engage the removal feature and remove the entire bearing assembly without damage to the parts. The placement of the removal feature on the bearing inner ring ID allows for a reduction in inner ring length (and weight) while maintaining bearing assembly integrity.

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: In a manufacture method for cross joint of the invention, each shaft portion 5 is inserted in the bearing hole 4a of each of the arms 4. Thereafter the cross shaft 3 is moved to the projecting position thereby projecting the distal end of the shaft portion 5 from the outside edge 4a1 of the bearing hole 4a of any one of the arms 4. Thereafter the bearing cup 6 having the plural needle rollers 7 arranged on the inner periphery 6a1 thereof is fitted about the shaft portion 5 and is also inserted in the bearing hole 4a, thereby being interposed between the arm 4 of the yoke 2 and the shaft portion 5.

Abstract: A system is provided for securing a rotating member with respect to a non-rotating member. A hollow member, such as a mounting hub or an inner ring of a bearing assembly, includes an extension having an annular outer groove. One or more tapered sleeves serve to lock the hollow member about a mechanical component, such as a shaft. A nut engageable on a sleeve includes an eccentric front aperture adjacent to a concentric groove, thereby forming a lip of varying depth The system is engaged by rotation of the nut on the sleeve in one direction, and disassembled by counterrotation of the nut such that a portion of the varying depth lip co-acts with a lip formed by a groove on an outer sleeve or on the hollow member.

Abstract: Methods and guide members to transfer a wheel assembly are disclosed. An illustrated method employs using the guide member to displace the wheel assembly relative to an axle assembly to maintain a continuous linear alignment of the wheel assembly with the axle assembly.

Abstract: A method of assembling an electric machine generally includes heating a housing to thermally expand the housing. The housing is allowed to cool and thermally contract against an end shield and a rotor assembly such that interference fits are formed between the housing and the end shield and between the housing and the rotor assembly.

Abstract: A spindle assembly for a machine tool comprising a housing having at least one bearing seat, a bearing having inner and outer races mounted in the bearing seat, a sleeve disposed between a race of the bearing and the housing, adhesively bonded to the housing, and a spindle mounted on the other race of the bearing wherein the spindle is axially aligned relative to the bearing and the spindle and bearing are displaceable axially relative to the sleeve rigidly secured to the housing.

Abstract: A support adaptor assembly for a bearing press comprising a rectangular shaped header plate (1), a pair of adjustable support rods (4) each with an adaptor (9) on one end for providing a means of supporting an object (50) to be worked on with a bearing press either above or below the support members of the bearing press.

Abstract: A system for adjusting at least one spacer of a bearing assembly includes a force-transmitting member and a preload regulator. The force-transmitting member is configured to operatively receive a force and to transmit the force to an adjustable spacer. The preload regulator includes a first portion and a second portion movable relative to each other with the first portion being movable in response to the force and the second portion being received by and stationary relative to the bearing assembly. The preload regulator further includes a controller coupled to the first portion and the second portion with the controller being configured to detect an electrical contact between the first portion and the second portion.

Abstract: It is an object of the present invention to provide a miniaturized, high-precision, easy, and low-cost dynamic pressure bearing device and a manufacturing method thereof. In manufacturing a dynamic pressure bearing device, a first and a second ring-shaped member are fixedly fitted to an outer peripheral surface of a rotating shaft member to constitute a rotating portion, an intermediate member is disposed between these members to constitute a fixed portion, a thrust bearing portion is formed in gaps between the first and second ring-shaped members and the intermediate member, and a journal bearing portion is formed in a gap between the rotating shaft member of the rotating portion and the intermediate member, the first and second ring-shaped members being fixed only with an adhesive applied on surfaces thereof which is to be fitted to the rotating shaft member.

Abstract: A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.

Abstract: A motor spindle includes a spindle shaft for receiving a tool. The spindle shaft is accommodated in the housing of the motor spindle in a fixed bearing and a loose bearing. The received tool enters into contact with the machined workpiece in a tool interface when the spindle shaft is driven and the tool interface is displaced in an axial direction of the spindle shaft when a workpiece is machined. A displacement sensor is provided on the spindle bearing in order to determine the axial displacement of the tool interface. There is also a motor spindle including a spindle shaft for receiving a tool. The spindle shaft is accommodated in the housing of the motor spindle in a fixed bearing and in a loose bearing with an axially displaceable bearing bushing. The tool enters into contact with the machined workpiece at the tool interface when the spindle shaft is driven, and an adjusting element which is used to adjust the axial displacement of the bearing bushing of the motor spindle is also provided.

Abstract: The thrust member is inserted into the inner circumferential surface of the housing, to make the end face of the thrust member contact with the lower side end face of the flange portion, and at the same time, to make the upper side end face of the flange portion contact with the lower side end face of the bearing sleeve. This stated is that the thrust bearing gap is zero. Then, the thrust member is made to relatively move with respect to the housing and the bearing sleeve in the axial direction together with the axis member, with a dimension ?(?=?1+?2) that is equivalent to the sum of the thrust bearing gap (size is ?1) of the first thrust bearing portion and the thrust bearing gap (size is ?2) of the second thrust bearing portion. Then, as the thrust member is fixed to the housing at that position, the predetermined thrust bearing gap ?(?=?1+?2) is formed.

Abstract: Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bearing and a rear bearing mounted on an outer circumference of the shaft at opposite end portions thereof respectively, a bearing housing built in a central portion of a rear wall of the tub for supporting the front bearing, a rotor composing the motor together with the rotor, and coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor to compose the motor together with the rotor, a connector serration coupled to the outer circumference of the shaft in front of the rear bearing and fixed to the rotor, for transmission of a rotating power from the rotor to the shaft, and a bearing bracket fixed to the rear wall of the tub to cover an outside of the rotor and support the rear bearing, thereby reducing noise,

Abstract: In a manufacturing method and a manufacturing apparatus for a wheel-support rolling bearing unit, when forming a crimped portion 14 on an end (inside end) of a hub main body 8a, by rocking die forging using a die 26, while preventing enlargement of equipment, in order to prevent forming indentations in a second outer raceway 6a and a second inner raceway 12a, in the present invention, the outer ring 1a is turned by a motor 48, and the balls 32 are rotated. A difference is provided between the rotation speed of the balls 32 and an oscillation speed of the die 26. This difference is preferably at least 10 min?1. By rotating the balls 32 the formation of indentations in the second outer raceway 6a and the second inner raceway 12a is prevented. Moreover, by providing the difference between the rotation speed and the oscillation speed of the die 26, an increase in the torque required for rotation the outer ring 1a is suppressed.

Abstract: A process for manufacturing and assembling a corner assembly for a vehicle to achieve a perpendicular relationship between an axle of a vehicle and first and second braking surfaces on a rotor. In this process, after an inner race of a bearing is pressed onto a wheel hub and an outer race is pressed into a support structure to define a sub-assembly. The sub-assembly is placed onto a locating fixture such that the outer race supports the sub-assembly in a desired alignment where an out board surface on a radial flange is in a perpendicular relationship with the axis of the wheel hub. An arbor is inserted into an axle bore surrounding the axis of the wheel hub and the sub-assembly is rotated on the inner race to simulate operational condition of a vehicle as the surface of the out-board flange is finished machined to define a perpendicular relationship with the axis of the wheel hub.

Abstract: The invention concerns a clutch release bearing comprising an axially mobile piston (14), and a ring (26I), integral with a raceway (C1), hooked on the piston (14) with axial-effect squeezing elastic means (38, 40). The ring (26I) is provided with a proximal surface (F1, 62) and a distal surface (F2, 70) arranged axially behind the proximal surface (F1, 62). The proximal surface (F1, 62) is supported on a first hooking surface (A1, 64) provided in the piston (14). The squeezing means (38, 40) are supported on the distal surface (F2, 70) of the ring (26I) and a second hooking surface (A2, 76) provided in the piston (14). The first (A1, 64) and second (A2, 76) hooking surfaces provided in the piston (14) are arranged axially in front of the distal surface (F2, 70) of the ring (26I) The invention also concerns a method for assembling the elements of said clutch release bearing.

Abstract: A knuckle (16) for a corner assembly (10, 210, 310) wherein a cylindrical body (18) has an outboard race (39) and an inboard race (45) located therein for correspondingly receiving a first roller assembly (52) and a second roller assembly (94) carried by a wheel hub (56) such that brake engagement surfaces (12a) and (12b) on a rotor (12) are located in a parallel relationship with faces on a friction members (14a) and (14b) associated with caliper (14) and perpendicular with the axis of the wheel hub (56) to obtain a desired lateral run out relationship between the rotor (12) and the axis of the first (52) and second (94) roller assemblies retained in the wheel hub (56).

Abstract: An apparatus for press-fitting a bearing cap into a cylinder block includes a frame. A first cylinder is connected to the frame. A guide rod is coupled to an operating rod of the first cylinder to ascend or descend in response to an operation of the first cylinder and configured to be inserted into bolt holes respectively formed in the bearing cap and the cylinder block in response to a descending thereof. A second cylinder is connected to the frame. A pressure detection sensor detects an operating pressure generated by the second cylinder. A press pad is coupled to an operating rod of the second cylinder to ascend or descend in response to an operation of the second cylinder and configured to press the bearing cap so that the bearing cap is press-fitted into the cylinder block.

Abstract: A process for mounting an outer bearing ring involves press fitting a stamp into the outer ring so that the inner peripheral surface of the outer ring assumes the shape of the stamp. Using the stamp, the outer ring is then press fitted into the recess of a machine part so that the contour of the external peripheral surface of the outer ring is plastically molded through axial stretching into the machine part. To mount an inner ring, a stamp with a bore is press fitted onto the inner ring so that the inner peripheral surface of the inner ring pressing against the stamp assumes the shape of the bore of the stamp. Using the stamp, the inner ring is then press fitted onto the machine part and the contour of the inner peripheral surface of the inner ring is plastically molded through axial flow forming into the machine part.

Abstract: An intermediate bearing for a driveline of a commercial vehicle has a housing (7) with a stirrup-shaped cross-section. The housing (7) has a fixing face (12) formed of two straight portions (8, 9) and a first arched portion (10). A bearing member (15) is arranged between the portions (8, 9, 10). The bearing member (15) is rubber and is connected to the fixing face (12) by vulcanization. A locking element (23) bridges the space between the two straight portions (8, 9). The locking member (23) is attached to the bearing member (15). The bearing member (15) encloses a supporting ring (16) which serves to receive a rolling contact bearing. The locking element (23) is adjustable for the purpose of setting a pre-tension of the bearing member (15) towards the longitudinal axis (18) of the bore (17) of the supporting ring (16). The locking element (23) can be connected to the housing (7) after the required pre-tension has been set.

Abstract: An axial flow fan motor having an impeller molded integrally with a shaft from a synthetic resin. The shaft is easily assembled with a bearing arrangement by being brought into tight contact with the inner ring of the bearing arrangement and is reliably fixed thereto in the elastic region of the shaft. A through hole is formed in the shaft along its central axis. After the shaft is fit into the inner ring of the bearing arrangement, a metal pin is pressed into the axial through hole. Because the pin is pressed in, the shaft is elastically expanded and brought into tight contact with the inner ring and fixed thereto in the elastic region of the shaft. Furthermore, the distal end portion of the shaft elastically outwardly expands and is pressed against the end surface of the inner ring, thereby preventing the bearing arrangement from coming off the shaft.

Abstract: A rotor shaft is supported in a housing of a rotor assembly for a laser level. Bearings support the rotor shaft for rotation relative to the housing. An adhesive fixes an outer race of at least one of the bearings in position between the rotor shaft and the housing. The adhesive is a low viscosity, quick setting anaerobic adhesive, which when cured prevents angular drift of the shaft relative to the housing by eliminating the clearance that would have existed between the outer race and the housing.

Abstract: The invention relates to an extra-roll slide bearing system (20) for a paper/board machine or a finishing machine, surrounding a shaft (2) in a roll (1). The bearing system comprises a body section (5), which is formed with a bearing housing (7) provided with hydrostatic bearing elements (3, 3A) disposed around the shaft (2). The bearing elements are fitted with slide elements (4, 4A), having a sliding surface (16) directed towards the shaft (2). Between the slide elements (4) and the shaft (2) is a bushing (6), which is mounted on the shaft (2) for rotation therewith, said slide elements (4, 4A) being adapted to position themselves around the bushing (6) with the sliding surfaces (16) against the external surface of the bushing directed away from the shaft for supporting said shaft (2), and hence the roll (1), rotatably relative to the body section (5). The bearing housing (7) has its axial ends provided with end caps (8, 9), along with packing elements (12, 14) therefor, for sealing the bearing housing.

Abstract: A method for mounting a light duty bearing having a groove defined in an outer arcuate surface thereof for receiving a metallic tolerance ring placed therein which includes protruding waves extending radially outwardly from the groove while the main band of the bearing is positioned preferably completely within the groove such that the bearing can be placed into a workpiece aperture to be movably mounted therein in a frictionally resisted manner such as required in light-duty applications where slight restricted movement between the bearing and the mounting aperture of the workpiece is desirable. The bearing assembly can be mounted in the workpiece aperture by exerting axial force against the inner race member or the outer race member to achieve the frictionally resisted mounting therebetween. The groove defined in the outer portion of the bearing is designed to receive and retain the tolerance ring therein during mounting in the workpiece aperture for greatly facilitating mounting.

Abstract: The present invention relates to an axial force controlling method for controlling an axial force applied to a rolling bearing in a bearing apparatus having a shaft body, the rolling bearing being mounted to the shaft body such that the rolling bearing fits an outside of the shaft body, and the bearing apparatus.

Abstract: A bearing apparatus includes a hollow shaft provided around an outer peripheral surface with a bearing fitting region, and a rolling bearing having an inner ring fitted around the bearing fitting region of the hollow shaft. A shaft end of the hollow shaft is bent outwardly in a diametrical direction, thereby being caulked on an outer end surface of the inner ring. The bearing fitting region has a hardened layer in a region from a first position corresponding to an inner end surface of the inner ring of the rolling bearing to a second position before a position corresponding to an outer end surface of the inner ring, and has a non-hardened layer in another region from the outer end surface corresponding position of the inner ring to the shaft end. The second position representative of a caulked side end portion of the hardened layer is defined based on a predetermined relational expression.

Abstract: In a state where the axes of an inner race (20) and an outer race (30) are inclined with respect to each other, the maximum value of a clearance between the ball-fitting-direction rearward side edge portion of the second inner race raceway (22) of the inner race (20) and the ball-fitting-direction rearward side edge portion of the second outer race raceway (32) of the outer race (30) is larger than the diameter of the respective balls belonging to the second ball row. Also, the maximum value of a clearance between the ball-fitting-direction forward side edge portion of the second inner race raceway (22) of the inner race (20) and the second outer race raceway (32) edge portion on the upper side peripheral surface (33) of the outer race (30) is smaller than the diameter of the respective balls belonging to the second ball row.

Abstract: A wheel bearing device is provided to prevent loosening of a hub ring and an outer joint ring that are fitted together. An irregular portion treated with hardening is formed on a fit face of the hub ring on an inside periphery of which the outer joint member is fitted. A low hardness portion of the outer joint member formed with hardness lower than that of the irregular portion is expanded in diameter to make it bite into the irregular portion. In this way the hub ring and the outer joint ring are unitized together.

Abstract: The outer ring (3) of a motor-vehicle wheel-hub bearing (1) is housed in a cylindrical seat (9) of a strut (10) and is locked axially, on one side of the strut (10), by means of a radially inwardly-projecting rim (18) formed by cold deformation of a tubular portion (17) of the seat (9) and, on the other side, by means of a shoulder (11). A resiliently compressible ring (19) is inserted into the seat (9) of the strut (10) so as to be compressed axially between a lateral surface (12, 13) of the outer ring (3) of the bearing and the shoulder (11) or the deformed rim (18) of the seat (9), respectively, to compensate for any relative thermal expansion between the bearing and the seat.