A clutch includes a hub and a flange located radially inside and outside, respectively, with respect to the clutch rotational axis and associated with hub and flange sides of the clutch. A spring elastically supports the hub and flange sides against each other in the circumferential direction in a torque-transmitting manner. A bearing radially supports the hub and flange sides against one another for rotation around the axis and includes an outer ring supporting the hub and an inner ring supported on a bearing pin associated with the flange side. A friction device connects the hub and flange sides in a friction-locked and torque-transmitting manner in the circumferential direction and includes a friction element and a friction surface which are pretensioned against one another in the axial direction. A tensioning device includes a tensioning element that applies force to, and axially pretensions, the friction device and bearing.

A damper device for transmitting power to an output-side member is disclosed. The damper device includes an input-side rotor, an output-side rotor, a plurality of elastic members, an intermediate rotor, and a first hysteresis generating mechanism. The input-side rotor, to which the power is inputted, is disposed to be rotatable. The output-side rotor is rotatable relative to the input-side rotor. The plurality of elastic members are configured to elastically couple the input-side rotor and the output-side rotor in a circumferential direction. The intermediate rotor is configured to actuate at least two of the plurality of elastic members in series. The intermediate rotor is rotatable relative to the input-side rotor and the output-side rotor. The first hysteresis generating mechanism is configured to apply a hysteresis torque to the intermediate rotor in elastic deformation of the plurality of elastic members.

A damper device for transmitting power from a power source therethrough to an output-side member is disclosed. The damper device includes an input-side rotor, an output-side rotor, a plurality of elastic members, an intermediate rotor and a hysteresis generating mechanism. The input-side rotor and the output-side rotor are rotatable relative to each other. The plurality of elastic members elastically couple the input-side rotor and the output-side rotor in a circumferential direction. The intermediate rotor is rotatable relative to the input-side rotor and the output-side rotor, and actuates at least two of the plurality of elastic members in series. The hysteresis generating mechanism includes a friction member slidable in contact with the input-side rotor, the output-side rotor and the intermediate rotor, and generates a hysteresis torque in elastic deformation of the plurality of elastic members.

A damper device includes a first rotor disposed to be rotatable, a second rotor rotatable relative to the first rotor, and a plurality of elastic members configured to elastically couple the first rotor and the second rotor in a circumferential direction. The first rotor includes a first plate and a second plate. The first and second plates are axially opposed to each other, and fixed to be immovable in both axial and circumferential directions. The first plate includes a plurality of first holding portions and a plurality of bent portions. The plurality of first holding portions hold the plurality of elastic members. The plurality of bent portions are provided on an outer peripheral end of the first plate, and bent toward the second plate. The second plate includes a plurality of second holding portions holding the plurality of elastic members together with the plurality of first holding portions.

A coupling arrangement for the powertrain of a vehicle with a clutch housing which is rotatable around a central axis is provided with a clutch mechanism with input-side clutch units) in operative connection with an input-side clutch unit carrier which is fixed with respect to rotation relative to the clutch housing and with output-side clutch units which are in operative connection with an output-side clutch unit carrier which is fixed with respect to rotation relative to a torsional vibration damper, and with a pressing device through which an operative connection between the input-side clutch units and the output-side clutch units can be produced or cancelled, and with a torsional vibration damper connecting the clutch mechanism to an output. The pressing device is provided axially between the torsional vibration damper and the clutch mechanism.

A coupling arrangement for the powertrain of a vehicle with a clutch housing which is rotatable around a central axis is provided with a clutch mechanism with input-side clutch units) in operative connection with an input-side clutch unit carrier which is fixed with respect to rotation relative to the clutch housing and with output-side clutch units which are in operative connection with an output-side clutch unit carrier which is fixed with respect to rotation relative to a torsional vibration damper, and with a pressing device through which an operative connection between the input-side clutch units and the output-side clutch units can be produced or cancelled, and with a torsional vibration damper connecting the clutch mechanism to an output. The pressing device is provided axially between the torsional vibration damper and the clutch mechanism.

An isolator for isolating a device driven by an engine via an endless drive member is described. The isolator comprises a shaft adapter that is connectable with a shaft of the device, defining a shaft adapter axis, a rotary drive member that is rotatable relative to the shaft adapter and has an endless drive member engagement surface that is engageable with the endless drive member, and an isolation spring arrangement positioned to transfer torque between the shaft adapter and the rotary drive member. The isolation spring arrangement has at least one isolation spring that is axially offset from the endless drive member engagement surface. The at least one isolation spring has an outer edge that is radially outside the endless drive member engagement surface.

A torsion damping device for a vehicle drivetrain including a first rotary element, a second rotary element, an elastic device, a friction device comprising an actuating washer mounted to rotate as one with a friction washer and comprising an actuating tab interposed circumferentially between a first end of a spring and the first rotary element so as to allow relative rotation between the actuating washer and the second rotary element when the first end of the spring is compressed by the first rotary element in the direction of a second end of the spring opposite to the first end.

A flexplate assembly comprising a central plate having a general disc shape disposed about and extending radially from an axis. The central plate has a first radial width. A ring gear is annularly secured about the central plate and presents an outer circumference that defines a plurality of ring teeth extending therefrom. At least one noise plate is disposed adjacent to the central plate and extends circumferentially about the axis for reducing vibrations and noise from the flexplate assembly. The noise plate has a second radial width that is at least one half of the first radial width of the central plate. A method of constructing such a flexplate assembly is also provided.

A flexplate assembly comprising a central plate having a general disc shape disposed about and extending radially from an axis. The central plate has a first radial width. A ring gear is annularly secured about the central plate and presents an outer circumference that defines a plurality of ring teeth extending therefrom. At least one noise plate is disposed adjacent to the central plate and extends circumferentially about the axis for reducing vibrations and noise from the flexplate assembly. The noise plate has a second radial width that is at least one half of the first radial width of the central plate. A method of constructing such a flexplate assembly is also provided.