Abstract: A unitary yoke-shaft and an axle assembly having a unitary yoke-shaft. The unitary yoke-shaft includes a shaft and a yoke. The shaft extends along an axis. The yoke extends from the shaft. The yoke is integrally formed with the shaft such that the yoke and the shaft are a unitary one-piece component.

Abstract: In a part having a rotationally symmetric region and a machining surface, and a method for manufacturing the part from a blank, the machining surface is finished in a planar manner. The normal direction of the machining surface is oriented parallelly to the axis of symmetry, e.g., an axis of rotation, of the rotationally symmetric region. The part includes an annular groove that extends around in a circumferential direction, e.g., with respect to the axis of symmetry. In a circumferential angular region covered by the machining surface, the annular groove is incomplete, e.g., removed down to the groove base of the annular groove, and in a circumferential angular region not covered by the machining surface, the annular groove is complete, e.g., the machining surface bordering on the annular groove and/or leading into the annular groove.

Abstract: A manual positioning assembly for connection to a shaft of a valve configured to manually manipulate a disc of the valve between an open and closed position. The manual valve positioning assembly includes a housing having a first and a second end. The first end includes a flange configured for fastening the housing to the valve. The second end includes a conical feature. An alignment bushing within the second end of the housing and a double universal joint. The double universal joint includes a first end and a second end. The first end of the double universal joint is configured to be mechanically fastened to the shaft of the valve. The second end is positioned within the alignment bushing and includes a socket configured to receive a tool that manually turns the double universal joint, the shaft, and the disc to position the disc in the open or closed position.

Abstract: A constant velocity joint for a vehicle is provided and may include hub housing, a bearing assembly, a power transmission member, and a boot. The hub housing is combined with the constant velocity joint in the hub housing. The bearing assembly includes an inner race fitted on an outer surface of the hub housing, an outer race spaced a predetermined distance apart from the inner race and fitted on a knuckle. The power transmission member is disposed between the inner race and the outer race. The boot has a band seat positioned on the inner race and a fixing band fixed on a top of the boot and the boot is coupled to the inner race by the fixing band. The boot further includes a boot lip that is formed at one end or both ends of the band seat and protrudes toward the knuckle.

Abstract: A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.

Abstract: A constant velocity joint for a vehicle. The constant velocity joint includes: an axle housing fixed to a knuckle by a hub bearing, and a joint assembly inserted into the axle housing to transmit power from a shaft to the axle housing through a plurality of joint balls. In particular, the axle housing includes an extension portion which is extended from an end portion of the axle housing in a radial direction of the axle housing, and the extension portion provides a pressing force to an inner race of the hub bearing in an axial direction of the axle housing. The constant velocity joint further includes a boot surrounding an outer side of the extension portion and coupled to the extension portion so as to form a restraining force between the extension portion and the boot in the axial direction.

Abstract: A powertrain includes a transfer case configured to couple to a transmission and an override system coupled to the transfer case. The transfer case includes a shift rod, a piston assembly including a first piston coupled to the shift rod and a second piston selectively engageable with the first piston, and a resilient member positioned to bias the shift rod and the first piston into a high position corresponding with a high mode of operation of the transfer case. The override system includes a housing coupled to the transfer case, a lever coupled to the housing and pivotable between a first position and a second position, and an engagement element disposed within the housing and coupled to the lever. The engagement element is configured to engage the second piston in response to the lever being pivoted from the first position to the second position.

Abstract: A safety guard support for a power take off shaft, the safety guard support: including a bearing; and a retainer ring. The bearing and the retainer ring including corresponding interlocking formations configured to prevent rotation of the bearing relative the retainer ring about a longitudinal axis.

Abstract: A torque transmission system having multiple torque transmission pathways from a driving shaft to a driven shaft. The driving shaft extends from a lower segment to an upper segment via an intermediate segment, the driven shaft extending from a first segment to a second segment. The transmission system includes a nominal spline coupling that is operational in a nominal operating mode, a backup spline coupling between the driving shaft and the driven shaft that is inactive in the nominal operating mode, and a backup radial guide device between the driving shaft and the driven shaft that is inactive in the nominal operating mode.

Abstract: An axle assembly for drive wheels of vehicles includes a steering knuckle, an axle housing coupled to an inside of the steering knuckle, a wheel disc that is fixed to the axle housing to be rotatable integrally with the axle housing, and a drive shaft that is coupled to the axle housing to be rotatable integrally with the axle housing. A hub bearing is disposed between the steering knuckle and the axle housing. A forming part is formed at an end of the axle housing in a state in which a bearing inner race of the hub bearing is coupled to an outer circumferential surface of the axle housing, and the bearing inner race is engaged with a side part of the axle housing by the forming part in a state in which the forming part is pressed against a side end of the bearing inner race.

Abstract: A modular tool bit holder system includes an angle tool bit holder, and a flexible shaft tool bit holder. The angle tool bit holder includes a housing containing a first input shaft, a first angle gear rotatably drivable about a first axis, a second angle gear, and a first bit holder rotatably drivable by the first angle gear about a second axis at an angle to the first axis. The flexible shaft tool bit holder includes a second input shaft, a flexible intermediate shaft rotatably drivable by the second input shaft, and a second tool bit holder rotatably drivable by the flexible intermediate shaft. The angle tool bit holder and the flexible shaft tool bit holder are operable separately or in combination. A connection assembly is configured to non-rotatably couple the angle tool bit holder and the flexible shaft tool bit holder when they are operable in combination.

Abstract: To obtain a structure wherein water having entered the gap between the bottom surface of an annular groove in a rotation-side flange and the inside surface in the axial direction of the brake rotor can be easily drained to the outer space. The outer diameter DO of the annular groove 15 is larger than the diameter DDI of the inscribed circle of the opening portion outside in the axial direction of the water drain holes 17a and is smaller than the diameter DDO of the circumscribed circle of the opening portion outside in the axial direction of the water drain holes 17a.

Abstract: In one example, a bracket includes a swivel rotatably mounted on a hinge and a keyway separable from the hinge. The swivel includes a key, while the keyway includes a recess. The key and the recess are shaped to allow the swivel and the keyway to connect to each other in a plurality of positions.

Abstract: A constant velocity joint assembly integrated with a wheel hub device may include an internal race coupled to an end portion of a driveshaft, a plurality of joint balls held in the internal race, and a hub housing accommodating and coupling the internal race holding the joint balls therein, with a bearing coupled to an external circumferential surface thereof, the hub housing provided as an external race of a constant velocity joint and the wheel hub device.

Abstract: A shaft bearing including an inner body, an outer body surrounding the inner body at a distance, and an elastomer body that elastically connects the inner body to the outer body. In embodiments, the elastomer body includes a damping device.

Abstract: A variable block shaft has a radially enlarged disc formed at a first end. A shaft portion extends from the disc to a second end. An inner bearing race surface is defined intermediate the first and second end and has an outer peripheral surface. An axial length of the inner bearing race surface is defined between inner facing surfaces of lands at each axial side. The axial distance is measured along the center axis of the body and an outer diameter to the inner bearing race surface being defined as a first distance. The axial length of the inner bearing race surface is defined as a second distance and a ratio of the first distance to the second distance being between 3.75 and 3.90. An integrated drive generator and a method are also disclosed.

Abstract: A gear shaft allows a ceramic bearing to be used in environments where gear steel is desirable for driving a gear. The gear shaft includes a gear region and a bearing region. A bearing can be disposed about the bearing region of the gear shaft. A gear can be disposed about the gear region of the gear shaft. The bearing includes a ceramic material. The gear region of the gear shaft includes gear steel, whereas the bearing region of the gear shaft includes a bearing-region material that has a coefficient of thermal expansion (CTE) that is close to the CTE of the ceramic material.

Abstract: A bevel gear wheel end assembly having a housing, an input bevel gear, at least one driven bevel gear and a stationary bevel gear. The input bevel gear meshes with at least one driven bevel gear, at least one driven bevel gear is mounted on a shaft fixed relative to the housing, and at least one driven bevel gear meshes with the stationary bevel gear such that rotation of the input bevel gear about a drive axis at a first speed causes rotation of the housing about the drive axis at a second speed. An oil relief arrangement is provided in the shaft of at least one driven bevel gear.

Abstract: A propeller shaft includes a first shaft, a second shaft, a slide joint, a bearing, an annular member, and a first stopper portion. The annular member is placed between an outer peripheral surface of a thin shaft portion and an inner peripheral surface of the bearing. The annular member is configured such that the bearing is fitted to the annular member. An outer peripheral surface of the annular member has a diameter larger than a diameter of a first shaft portion extending on a shaft-body-portion side relative to the annular member provided on the thin shaft portion. The first stopper portion is placed at a position on a side closer to a shaft body portion than the annular member provided on the thin shaft portion. The first stopper portion is configured to prevent an axial movement of the annular member toward the shaft body portion.

Abstract: A bearing device for a wheel prevents backlash in a circumferential direction and has excellent workability for connecting a hub wheel and an outer joint member of a constant velocity universal joint. The bearing device includes a recess-projection fitting structure in which the hub wheel and a shaft section, which is fitted in a hole of the hub wheel of the outer joint member of the constant velocity universal joint, are unitized together. In the recess-projection fitting structure, entire fitting regions among projections on the outer surface of the shaft section of the outer joint member and recesses, which fit on the projections, are brought into intimate contact with each other.

Abstract: A wheel supporting device includes: a hub unit that has a rotary ring having a first spline on its axially inner end face; and a joint that has an outer ring having a second spline, meshing with the first spline, on its axially outer end face. At least one projection included in a plurality of projections of the first spline projects in the axial direction by a larger amount than the remaining projections of the first spline. When a crest of the at least one projection contacts a crest of one of projections of the second spline, a play is caused between the rotary ring and the outer ring due to the at least one projection that works as a fulcrum.

Abstract: A shaft portion of a joint outer ring where projections extending in an axial direction are provided is press-fitted into a hole portion of a hub wheel to thereby form recesses by the projections in an inner diameter surface of a shaft fitting hole of the hub wheel, by which a recess-projection fitting structure is constructed. An entire area of fitting sites of the projections and the recesses are brought into close contact. Moreover, a bolt member is fastened in a bolt hole provided in the shaft portion of the joint outer ring after the construction of the recess-projection fitting structure, which restricts separation between the hub wheel and the joint outer ring. As the bolt member, if an outer diameter of a seating surface thereof is d1 and a shaft diameter is d2, a bolt member satisfying a relational expression of 2.3?(d1/d2)2?4.9 is used.

Abstract: An intermediate shaft of a vehicle steering apparatus can prevent foreign matter, for example, moisture, dust or oil, from being introduced into the intermediate shaft even from a process of transporting the intermediate shaft to assemble it to a vehicle, and even when the intermediate shaft is assembled to the vehicle and the vehicle is driven. As a result, it is possible to prevent a component of the intermediate shaft from being deformed or damaged.

Abstract: A transmission for a vehicle and a shaft assembly for transferring a fluid in the transmission of the vehicle are disclosed. The shaft assembly includes an input member rotatable about a longitudinal axis. The input member defines a cavity along the longitudinal axis. The shaft assembly further includes a shaft rotatable about the longitudinal axis and extending to a first end facing the input member. The shaft and the input member are spaced from each other along the longitudinal axis to define a gap therebetween. The shaft assembly also includes a cap attached to the shaft, with the cap extending through the gap into the cavity of the input member. The cap defines an aperture in fluid communication with the cavity for delivering the fluid from the shaft to the cavity of the input member.

Abstract: The invention relates to a spur toothing on at least one coupling element for transmitting torques about a rotational axis, said spur toothing axially engaging with a corresponding mating cutting. The face cutting is provided with teeth from a material of the coupling element that has been plastically shaped in an at least partially non-cutting manner.

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 protective screen mounted on an outer cylindrical surface of a constant-velocity joint and facing towards a sealing device of a rolling-contact bearing which is angularly coupled to the constant-velocity joint for protecting the sealing device and the rolling-contact bearing from the action of external agents; the screen being provided with: an annular wall, which is transverse to an axis (A) of rotation of the constant-velocity joint and is arranged in axial abutment against a side wall of said constant-velocity joint, a central hole, which is made through the annular wall and through which a shaft of the constant-velocity joint passes with play, and a plurality of elastic mounting and centering fins, which are distributed uniformly about the central hole and extend unsupported from the annular wall such that they are coupled to the outer cylindrical surface of the constant-velocity joint.

Abstract: A driving-wheel bearing device includes an outer race having double-row outer raceway surfaces formed on an inner periphery thereof, a hub wheel and an inner race having a wheel attachment flange at one end thereof and double-row inner raceway surfaces on an outer periphery thereof, and double-row rolling elements interposed between the outer raceway surfaces of the outer race and the inner raceway surfaces of the hub wheel and the inner race, the hub wheel having a shaft hole into which a stem section extending from an outer joint member of a constant velocity universal joint is spline-fitted by being press-fitted, in which a plate having a molybdenum coating layer or a fluorine-resin coating layer formed thereon and having a plate thickness ranging from 0.5 mm to 2 mm is interposed between opposite surfaces of a shoulder portion of the outer joint member and an crimped portion of the hub wheel.

Abstract: A fairing system according to an exemplary aspect of the present disclosure includes, among other things, a shaft fairing mounted for rotation about an axis of rotation and a planetary gear set configured to control a position of the shaft fairing about the axis of rotation.

Abstract: A recess-projection fitting structure includes projections extending in an axial direction on an outer diameter surface of a shaft section of an outer joint member or an inner diameter surface of a hole of a hub wheel, press-fitting the projections in another of the outer diameter surface and the inner diameter surface along the axial direction, and forming recesses brought into contact and fitted with the projections by press fitting in the other of the outer diameter surface and the inner diameter surface, the projections and the recesses being held in contact with each other through intermediation. An outer member is fitted in a hole of a knuckle of a vehicle. Annular grooves are formed respectively in an outer peripheral surface of the outer member and an inner peripheral surface of the hole of the knuckle, and a snap ring is engaged with both the annular grooves.

Abstract: An intermediate shaft of a vehicle steering apparatus can prevent foreign matter, for example, moisture, dust or oil, from being introduced into the intermediate shaft even from a process of transporting the intermediate shaft to assemble it to a vehicle, and even when the intermediate shaft is assembled to the vehicle and the vehicle is driven. As a result, it is possible to prevent a component of the intermediate shaft from being deformed or damaged.

Abstract: A bearing device for a wheel suppresses backlash in a circumferential direction, has excellent coupling workability with a hub wheel and an outer joint member of a constant velocity universal joint, and has excellent strength owing to stable fitting between the hub wheel and the outer joint member. Projecting portions extending in an axial direction are provided on one of an outer surface of a shaft section of the outer joint member and an inner surface of a hole portion of the hub wheel. The projecting portions are press-fitted into the other along the axial direction, and recessed portions are formed in the other through press-fitting of the projecting portions. Thus, a recess-projection fitting structure is formed, in which the projecting portions and the recessed portions are held in close contact with each other through an entire region of fitting contact regions therebetween.

Abstract: A vehicle hub unit includes: an outer ring; rolling elements; a hub wheel that is arranged radially inward of the outer ring via the rolling elements; and an inner ring member that is fixed to an end portion of a hub spindle of the hub wheel by clinching. A spline tooth portion that meshes with a tooth portion of a constant velocity joint that transmits driving force to the hub unit is formed at a clinched portion of the hub spindle. A protruding portion is formed at a radially inner side portion of a bottom of the spline tooth portion.

Abstract: A steering knuckle, which is provided for receiving an outer ring of a wheel bearing, and a wheel bearing arrangement with such a steering knuckle. The sealing arrangements of the wheel bearing has a pre-seal, which is designed as a labyrinth seal to provide sealing for an appropriate gap geometry. To this end, the steering knuckle has a collecting channel, which captures liquids and dirt particles and discharges them at the periphery. The hearing seal can be changed by this measure, so that savings are possible with a minimum of sealing action of the conventional sealing arrangement and with greatly reduced friction torque. Overall, the sealing action, which is now achieved by the bearing seal and the pre-seal together, is increased or remains at least at the same level while manufacturing costs are reduced.

Abstract: A power transmission device that includes an electromagnetic wave-shielding wall partitioning a space and a space, a rotating shaft penetrating through the electromagnetic wave-shielding wall to transmit rotating drive force, and a bearing supporting the rotating shaft. The rotating shaft includes a first shaft member supported by the bearing, a shaft joint part provided on an end of the first shaft member, and a second shaft member rotating together with the first shaft member. The first shaft member and the second shaft member are formed of a conductive material, and the shaft joint part has an insulating part formed of an insulating material. An outer race component part of the bearing has an annular close-contact surface formed of a conductive material.

Abstract: A driving wheel bearing apparatus has an inner ring 5 secured to a wheel hub 1 by a caulked portion 13. An outer joint member 14 of a constant velocity universal joint 3 has a shoulder portion 19 and a cylindrical shaft portion. Face splines 19a and 13a are formed at the end faces of the shoulder portion 19 and the caulked portion 13. Face splines 19a and 13a are supported with pressure by a fastening bolt 21 that abuts the outer side end face of the wheel hub 1 and is threadedly connected to an internal thread 20a of the shaft portion 20. Compressive remaining stress is placed on the surfaces of the face splines 19a and 13a as a result of surface modification, by shot peening. The surface hardness is set at 300 Hv or more.

Abstract: A coupling assembly for connecting a hub bearing unit with a constant velocity joint includes a bell member of a constant velocity joint having a tubular section disposed about a driving ring and having an end surface facing a hub member end surface and an inner circumferential surface defining a bore. The inner surface has inner splines engageable with driving ring outer splines and a tapering surface section. A sealing member is disposed between the hub and bell end surfaces and seals the space between the surfaces. An annular retainer disposed within the bell bore has a tapering outer circumferential surface engageable with the inner surface section of the bore such that the tubular section is retained between the retainer outer surface and the hub end surface, preventing disengagement of the splines and compressing the sealing member between the end surfaces. A connector connects the retainer with the hub.

Abstract: A wheel support apparatus including a hub wheel which includes a hub shaft and is to mount a wheel thereon, a first side surface spline being formed on an end surface of the hub shaft, and a constant velocity joint which includes an outer ring connected to the hub shaft in a torque-transmitting manner, a second side surface spline meshed with the first side surface spline being formed on an end surface of a side wall portion of the outer ring abutting against the end surface of the hub shaft. Each of the first and second side surface splines includes a number of spline teeth and bottom lands defined between the spline teeth. The tooth tops of the spline teeth of one of the two side splines and the bottom lands of the other side spline are formed into a tapering surface inclined relative to a plane perpendicular to a center axis of the hub shaft. The tapering tooth tops contact the corresponding tapering bottom lands so that the hub shaft and the outer ring can be aligned with each other.

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 vehicle wheel bearing apparatus has an outer member, an inner member, double row rolling elements, and a constant velocity universal joint connected to a wheel hub of the inner member. A cap, formed as a low friction member, is interposed between a caulked portion and a shoulder portion of the constant velocity joint. The cap has a disc shaped abutting portion, a cylindrical portion and an anchoring portion. The disc shaped abutting portion is adapted to abut against the caulked portion and the shoulder portion. The cylindrical portion extends axially from the radially outermost portion of the abutting portion. The anchoring portion extends radially inward from a free end of the cylindrical portion. The radially inner diameter of the anchoring portion is formed slightly smaller than the radially outer diameter of the caulked portion so that the cap can be mounted on the caulked portion in a snap-fitting manner.

Abstract: A wheel hub joint unit is provided that includes, but is not limited to a constant velocity rotary joint and a wheel bearing. The constant velocity rotary joint has a joint outer part. The wheel bearing supports a wheel hub with a double-row bearing, and the double-row bearing is disposed on the joint outer part.

Abstract: According to one form of the invention, an auxiliary system is provided for supplying air conditioning to the cabin of a truck. The system includes an air conditioning compressor having a jackshaft mounted on a hub of the compressor. The system further includes an electric motor connected to the jackshaft by a belt for the motor, wherein the electric motor has a drive shaft and a pulley rigidly secured thereon, i.e., with no clutch and with no provision for slippage of the pulley relative to the drive shaft. The jackshaft has a pulley thereon for the electric motor drive. An end of the jackshaft that is not proximate to the compressor is rotatably held by a bearing and a bearing bracket in order to increase capability of the jackshaft to withstand side loading.

Abstract: A shaft support for a first rotating shaft and a second rotating shaft. The shaft support includes a housing, a first bearing, and a second bearing. The housing includes a first portion, a second portion, and a transition portion connecting the first portion and the second portion. The first bearing is coupled to the first portion. The first bearing rotatably supports the first shaft and resists at least a portion of a first radial load exerted on the first shaft. The second bearing is coupled to the second portion and rotatably supports the second shaft. At least a portion of the first radial load is transmitted to the transition portion from the first bearing.

Abstract: A apparatus is provided in which, in a state before being assembled to a drive target, one end of a rotating shaft is not supported by a bearing, and in this state, the rotating shaft is pressed to the side of a bracket by coil springs and thus centering of the rotating shaft is maintained. In this way, axial run-out of the rotating shaft before a magnetic motor is assembled to the drive target is inhibited. Thus, damage and deterioration in assembly efficiency as a result of axial run-out of the rotating shaft can be inhibited, such as deterioration in assembly efficiency caused by adhesion between a magnet and coils wound on an armature core, for example.

Abstract: A cylindrical pilot portion (72) to be fitted to an inner periphery of a wheel (80) is formed at an inner diameter part of a brake rotor (70). A shape of a hub wheel, in particular, the shape on an outboard side is thus simplified, and the hub wheel can be formed at low cost through cold forging or the like.

Abstract: A driving wheel bearing apparatus has an inner ring 5 secured to a wheel hub 1 by a caulked portion 13. An outer joint member 14 of a constant velocity universal joint 3 has a shoulder portion 19 and a cylindrical shaft portion. Face splines 19a and 13a are formed at the end faces of the shoulder portion 19 and the caulked portion 13. Face splines 19a and 13a are supported with pressure by a fastening bolt 21 that abuts the outer side end face of the wheel hub 1 and is threadedly connected to an internal thread 20a of the shaft portion 20. Compressive remaining stress is placed on the surfaces of the face splines 19a and 13a as a result of surface modification, by shot peening. The surface hardness is set at 300 Hv or more.

Abstract: A propshaft assembly that includes first and second shaft members, a joint, a center bearing assembly and a deflector. The joint couples the first and second shaft members to one another. The center bearing assembly includes a bearing that supports the joint. The deflector is coupled to the joint and shields an axial side of the bearing.

Abstract: A cylindrical pilot portion P to be fitted to an inner periphery of a wheel (80) is formed at an inner diameter part of a brake rotor (70). A shape of the hub wheel, in particular, the shape thereof on an outboard side is thereby simplified, and thus the hub wheel can be fabricated at low cost by cold forging or the like. An outer joint member (31) of an outboard side constant velocity universal joint (30) and a hub wheel (10) are connected with each other by way of a nut member (90).

Abstract: An outer ring shaft portion which is extended integrally from an end face of an outer ring of a constant velocity joint is fittingly inserted into an inside hole in a hub shaft of a wheel hub, so that the wheel hub and the constant velocity joint are coupled to each other. Internal splines and external splines are formed on an inner circumferential surface of the inside hole in the hub shaft and an outer circumferential surface of the outer ring shaft portion in such a manner as to mesh with each other. Side face splines are formed on end face of the hub shaft and an end face of the outer ring of the constant velocity joint. The wheel hub and the constant velocity joint are connected together in such a manner that torque can be transmitted therebetween.

Abstract: A joint assembly has a pair of constant velocity universal joints and a connecting drive shaft. A cover unit protects the constant velocity universal joints and prevents hanging down of the joints under their own weight. The unit cover is arranged to cover the outer circumferential surfaces of the pair of constant velocity universal joints and boots. The unit cover is formed from elastomer material by injection molding. The cover unit inner circumferential surface has a configuration corresponding to the outline configurations of the pair of constant velocity universal joints and the boots.