A friction part includes a circular ring disk-like friction body with a friction surface, a coupling body connected as a single piece to the circular ring disk-like friction body, and a weakened region. The coupling body has a toothing arranged to provide a rotationally fixed connection to a disk carrier. Circumferential rigidity of the friction part is reduced in the weakened region to facilitate compensating circumferential movements between sections of the friction part adjoining the weakened region.

A sealed clutch and a clutch plate, the sealed clutch including a spline connector for connecting the sealed clutch by splined connection to a transmission shaft of an automotive transmission. The spline connector comprising a connector housing and a spline ring. The spline ring including an opening having a spline configuration for cooperating with a splined portion of a transmission shaft. The connector housing being secured within the sealed clutch and the spline ring being removably connectable to the connector housing to enable the spline ring to be removed and replaced with a different spline ring for cooperating with a splined portion of a different transmission shaft. The clutch plate has a pair of drive plates having a coaxially aligned openings and a spline connector mounted between them. The outer diameter of the spline ring being slightly less than the inner diameter of the opening of one of the drive plates and a removable retainer being interposed between the spline connector and the drive plate to retain the spline ring, whereby removal of the removable retainer enables removal of the spline ring from the spline connector through the opening of the drive plate.

A sealed clutch and a clutch plate, the sealed clutch including a spline connector for connecting the sealed clutch by splined connection to a transmission shaft of an automotive transmission. The spline connector comprising a connector housing and a spline ring. The spline ring including an opening having a spline configuration for cooperating with a splined portion of a transmission shaft. The connector housing being secured within the sealed clutch and the spline ring being removably connectable to the connector housing to enable the spline ring to be removed and replaced with a different spline ring for cooperating with a splined portion of a different transmission shaft. The clutch plate has a pair of drive plates having a coaxially aligned openings and a spline connector mounted between them. The outer diameter of the spline ring being slightly less than the inner diameter of the opening of one of the drive plates and a removable retainer being interposed between the spline connector and the drive plate to retain the spline ring, whereby removal of the removable retainer enables removal of the spline ring from the spline connector through the opening of the drive plate.

A multiple disk clutch with a multiple disk pack and a power transmission device for transmitting an actuating force through openings in a wall of the multiple disk clutch to the multiple disk pack, wherein the power transmission device has transmission fingers that extend through the openings. The openings are at least partially arranged in a first wall section of the wall extending in the axial direction. In addition, the present invention relates to a dual clutch device having at least one such multiple disk clutch.

A drive assembly including a primary inertia plate and clutch. The primary inertia plate is configured to be rotationally driven via a crankshaft. The clutch plate includes a body with a rotational axis (X). The clutch plate is configured to be rotationally driven by the primary inertia plate. The clutch plate includes at least one imbalance feature such that a center of gravity of the clutch plate is positioned away from the rotational axis (X). The imbalance feature generates a centrifugal force that counteracts or prevents rattling from being imparted to the clutch plate via engine vibrations through the primary inertia plate.

A hybrid drive device includes: a rotor; a transmission; and a case, in which a rotor support member that supports a rotor of the rotary electric machine includes an annular member that faces an end wall portion of the case, the end wall portion includes a first tubular portion that protrudes in an axial direction from an inner periphery toward the transmission, and a second tubular portion that protrudes in the axial direction toward the transmission so as to surround the first tubular portion, the annular member includes a tubular portion that protrudes in the axial direction from an inner periphery toward an engine, an inner side radial bearing is disposed between the first transmitting shaft and an inner peripheral surface of the first tubular portion of the end wall portion, a clearance is formed between an outer peripheral surface of the first tubular portion of the end wall portion and an inner peripheral surface of the tubular portion of the annular member, and an outer side radial bearing is disposed between an outer peripheral surface of the tubular portion of the annular member and an inner peripheral surface of the second tubular portion of the end wall portion. As a result, the durability of the bearing for supporting the rotor of the rotary electric machine in the radial direction can be further improved.

A vehicle drive apparatus includes: a first bearing disposed between a rotor support member and a case in a radial direction so as to restrict movement of the rotor support member to a first axial side relative to the case; and a second bearing disposed between a connecting shaft and the case in an axial direction so as to restrict movement of the connecting shaft to a second axial side relative to the case. A fluid transmission device is disposed on the first axial side relative to the connecting shaft. The rotor support member includes a tubular portion having a tubular shape extending in the axial direction and fitted to an outer peripheral surface of the connecting shaft. Movement of the connecting shaft to the first axial side relative to the tubular portion is restricted.

A disconnect clutch for a drive train of a motor vehicle includes a torque transfer component with a contact region, an outer disc carrier, an application element, and a return spring. The outer disc carrier is rotationally and axially fixed on the torque transfer component, and arranged for receiving rotationally fixed and axially displaceable friction discs arranged for torque transmission with counter friction discs. The application element is for axially displacing at least one of the friction discs for a frictional connection and the return spring is for releasing the frictional connection. The return spring contacts the application element, the return spring comprises a radially outer portion that bears against the contact region, and the contact region is designed to modify a preload of the return spring.

A clutch unit for a powertrain of a motor vehicle is disclosed, comprising a torque input component acting as a drive element, a torque output component acting as an output element, being connectable so as to transmit a torque to the torque input component via a clutch that can be shifted using friction elements, and with a torsional vibration damper having two masses damped relative to one another to reduce rotational irregularities, which is arranged between the torque input component and the torque output component, at least one of the two masses of the torsional vibration damper being simultaneously designed as a support for a friction partner. The disclosure further relates to a hybrid module comprising a first drive machine, the output shaft of which can be connected to an output shaft of a second drive machine or a transmission input shaft via such a clutch unit.

A clutch pack for a clutch in a drive train of a motor vehicle includes an axis defining an axial direction and a disk, rotatable about the axis, for contacting a counter-disk to transfer a torque. The disk includes a main body with a contact region for absorbing torque from or transferring a torque to the counter-disk, a toothed region for torque-transmitting contact with a disk carrier, and a region of specific elastic softness in the axial direction disposed between the contact region and the toothed region. In an example embodiment, the region of specific elastic softness in the axial direction is a steel sheet spring region.