Abstract: A differential carrier with an axis of rotation A around which the differential carrier can be rotatably supported in a differential housing is disclosed. The differential carrier comprises a first half-shell and a second half-shell. Each half-shell comprises a central carrier portion and two outer bearing portions. The two half-shells are connected to one another in the region of their bearing portions. A differential assembly which comprises such a differential carrier is also disclosed.

Abstract: A joint arrangement in the manner of a counter track joint, wherein a cage is provided which is arranged between a joint outer part and joint inner part, which has a cage outer sphere with an outer sphere centripetal point and a cage inner sphere with an inner sphere center point and which has a plurality of cage windows which each hold at least one ball, wherein at least the outer sphere center point and the inner sphere center point of the cage are arranged offset with respect to the joint center plane.

Abstract: A boot is disclosed having a first attachment region which is assigned to a joint, and a second attachment region which is assigned to a shaft. The boot has a plurality of folds, including a first fold region with at least two folds with a diameter that decreases in the direction of the second attachment region and at least one revolving, separating element which is arranged in an annular fold root between two folds.

Abstract: The invention relates to a differential assembly in the form of a crown gear differential, more particularly for being used in the driveline of a motor vehicle. The differential assembly comprises a differential carrier (3) which is produced in one piece, which is rotatingly drivable around an axis of rotation A and which, in a casing portion (26), comprises two radial openings for mounting sideshaft gears (15, 16) and differential gears (14). Per opening (20), there is provided a bearing disc (19) which is inserted into said opening (20) and which comprises a central bore (30) in which there is held a journal end (28) of a bearing journal (27) for a differential gear (14).

Abstract: A bellows for a joint arrangement may include pleats, an axis and a joint end, a zone of the joint end being produced by blow molding and forming a receiver for a retaining ring. The receiver, in the proximity of the pleats, has a plurality of outward-pointing bulged portions that form a recess and at least one inclined receiving edge.

Abstract: A differential assembly is described, in the form of a crown differential for use in a driveline of a motor vehicle. The differential assembly comprises a one-piece differential carrier which is rotatably drivable around an axis of rotation and, in a casing portion, comprises no more than two identical openings for mounting sideshaft gears rotatably held in the differential carrier on the axis of rotation, as well as differential gears, which rotate jointly with the differential carrier around the axis of rotation and engage the teeth of the sideshaft gears. With reference to a longitudinal central plane, the openings are arranged so as to be mirror-symmetrical and comprise an axial length corresponding at least to the diameter of the differential gears, and a greatest circumferential extension which, in a radial view, corresponds at least to the diameter of the sideshaft gears.

Abstract: The invention relates to a limited slip differential, more particularly for being used in the driveline of a motor vehicle. The limited slip differential 2 comprises a carrier element 3 which is rotatingly drivable around an axis of rotation A; a plurality of planetary gears 4 which rotate around the axis of rotation A together with the carrier element 3; a hollow gear 5 which is supported so as to be rotatable around the axis of rotation A and which engages at least some of the planetary gears 4; an adapter gear 7 which engages either the hollow gear 5 or the sun gear 6 via a toothed coupling 12 for the purpose of transmitting torque, and wherein the toothed coupling 12 comprises a first face toothing 14 at an end face of the adapter gear 7 and a second face toothing 13 at an end face of the gear engaging the adapter gear.

Abstract: An articulated structural part includes a peripheral zone. The peripheral zone includes a surface, an outermost layer situated immediately adjacent the surface, a further layer situated adjacent the outermost layer and a core situated adjacent the further layer, wherein the outermost layer is substantially martensite. The further layer includes a varying mixture of martensite and of ferrite or perlite. The core is substantially ferrite or perlite. A process for producing an articulated structural part is also provided.

Abstract: A boot comprising a fold region and an attachment region is disclosed. The attachment region comprises an outside with at least two circumferential ribs extending from a base surface towards the outside and providing for a binder seat surface.

Abstract: Constant-velocity fixed joints may comprise an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, torque transmitting balls which are guided in pairs of tracks each formed of an outer and an inner ball track, and a ball cage with circumferentially distributed cage windows in which the balls are received. Here, the balls are held in a common central plane and are guided onto the bisecting plane when the joint is deflected. Constant-velocity rotary joints of this type are known as Rzeppa fixed joints (RF) or as undercut-free fixed joints (UF).

Abstract: A process of producing an inner profile (18)in a tube or hollow profile (11) includes inserting the tube or hollow profile (11) into a supporting sleeve (12), with a first tube end (19) being axially supported; placing a pressure-loaded annular die 16 on to the other tube end (20); pressing a forming die (15) with an outer profile into the tube or hollow profile (11) from the latter tube end (20) for producing the inner profile (18); allowing a return of the annular die (16) under a pressure load in the opposite direction of that of pressing in the forming die (15).

Abstract: A friction coupling assembly includes: an actuator in the form of a ball ramp assembly, a plate package, and a ball bearing. The actuator has two coaxial discs, wherein the faces of the two discs each have ball grooves of increasing depth. Pairs of opposed ball grooves hold balls to axially support the two discs. The plate package is arranged coaxially relative to the discs and has outer plates for fixing to a coupling carrier and inner plates for fixing to a coupling hub. The ball bearing is for axially supporting the at least one rotatingly drivable disc, wherein a first bearing race of the ball bearing is integrally formed with the at least one rotatingly drivable disc.

Abstract: A differential assembly includes a differential carrier (5) with a first carrier part (6) with a free first annular face (13) and a second carrier part (7) connectable to the first carrier part (6) and having a free second annular face (15), and a plurality of circumferentially distributed recesses (9) formed between the two carrier parts (6, 7); per carrier part (6, 7), a sideshaft gear (22, 23) is rotatably supported therein; and a supporting element (10) with journals (12) is held in the differential carrier (5). Each of the journals engages one of the recesses (9) of the differential carrier (5) and carries a differential gear (19) for driving the sideshaft gears (22, 23). The first and the second carrier part (7) are welded along a joining region formed between the two annular faces (13, 15) which is interrupted by the recesses (9) in the circumferential direction.

Abstract: A constant velocity joint in the form of a counter-track joint. The circumferential length (L1) of the first cage windows for the balls in the first pairs of tracks is greater than the circumferential length (L2) of the second cage windows for the balls in the second pairs of tracks. This permits a method of assembly wherein first the first balls, one after the other, are mounted in first pairs of tracks which widen from the aperture end to the attaching end and wherein then the second balls, one after the other, are mounted in second pairs of tracks which widen from the attaching end to the aperture end. For mounting the second balls in the second pairs of tracks, only a small overarticulation angle is necessary, and thus a shorter circumferential length of the respective windows than there is required for mounting the first balls in the first pairs of tracks.

Abstract: A motor vehicle hydraulic pump (1) is provided comprising a gerotor rotor set or planetary rotor set and at least two output stages. A first output stage (10) of the hydraulic plump (1) is connected to a lubricant, in particular, a clutch lubricant. A second output stage (11) of the hydraulic pump (1) is connected to at least one clutch (2) of the actuation thereof. The invention also provides a method for actuating at least one clutch which is arranged in the motor vehicle by means of a motor vehicle hydraulic pump, whereby an inter-connection of a volume flow outlet of the first step (10) and the second step (11) of the hydraulic pump (1) takes place according to requirements for actuating the clutch.

Abstract: A constant velocity universal ball joint 11 having first and second outer ball tracks 16, 18, and first and second inner ball tracks 17, 19, forming first pairs of tracks 16, 17 which widen in a first axial direction. Ri1 (?), and forming second pairs of tracks 18, 19 which widen in a second axial direction Ri2 (?). Balls 20 are guided in the pairs of tracks and have centers Z positioned on a pitch circle radius PCR around a joint centre M. A ball cage 21 holds the balls 20 in a common central plane E on to the angle-bisecting plane when the joint is articulated. There is provided an axial clearance permitting a relative axial displacement S wherein, when in the aligned condition, the ratio between the axial clearance S and the pitch circle radius PCR ranges between 0.01 and 0.09 (0.01<S/PCR<0.09).

Abstract: A process machining inner joint parts (11) of constant velocity universal ball joints, which inner joint parts (11) comprise a longitudinal axis (A) and at least one guiding face by which the inner joint part (11) is continuously angularly movably guided in a ball cage, and which comprise a plurality of ball tracks (12) which are distributed around the circumference of the guiding face and which divide the guiding face into a corresponding plurality of guiding webs (13) and in which torque transmitting balls can be held so as to be longitudinally displaceable. One ball track (12) and at least one guiding web (13) are machined simultaneously.

Abstract: A differential drive with a rotatably arranged differential carrier (11) in which a multi-plate coupling (23) is arranged so as to be effective between the differential carrier (11) and a sideshaft gear (29), wherein the differential carrier (11) includes a dish-shaped carrier part (12) in which there are received sideshaft gears (28, 29) and differential gears (26, 27). The differential carrier includes a dish-shaped cover (14) which receives the plates of the multi-plate coupling (23).

Abstract: A tripod joint is disclosed which has an outer joint part and an inner joint part. The outer joint part includes a first longitudinal axis and a longitudinally running cavity with an open end. Three longitudinally running recesses are formed in the outer joint part. The inner joint part includes a second longitudinal axis and comprising at least one central body on which are integrally formed three journals with journal axes which extend radially from the second longitudinal axis. In each case, one roller body is arranged on the journals, which roller body has at least one outer ring, a closed inner ring and bearing bodies which are arranged in between. Each roller body is additionally, in each case, held in the recesses in a longitudinally moveable manner, and a rotation of the closed inner ring about the respective journal is blocked. Also proposed is a roller body with a non-circular or angular inner ring.

Abstract: A drive assembly for use between an axle differential and a sideshaft comprises an intermediate shaft that is rotatably supported around a rotation axis and has a first end fixedly connected to an output gear of the axle differential and a second end fixedly connected at least indirectly to the sideshaft. A controllable coupling unit comprises a coupling cage with outer plates and a coupling hub with inner plates. The coupling cage is rotatably supported around the rotation axis relative to a bearing support. The coupling hub is connected to the intermediate shaft. The outer plates and the inner plates are arranged so as to axially alternate and jointly form a plate package. The coupling cage extends in the axial direction from the differential carrier to the bearing support and is sealed by first and second rotary seals.