Abstract: A rotary damper device includes a drive component and a rotary damper upstream of the drive component. The drive component has an input gear with an external toothing and axially open cut-outs. The rotary damper has an annular carrier, a spring element arranged in the annular carrier, an output gear with an internal toothing meshed with the external toothing, and a clamping ring with a plurality of axially extending fingers engaged in the axially open cut-outs to clamp the output gear against the input gear.

Abstract: A torsional vibration damper, in particular for a drive train of a motor vehicle having a dual clutch transmission, includes an input part mounted rotatably about a rotation axis, and an output part rotatable in relation to the input part about the rotation axis to a limited extent against the action of a spring device and which has an output hub. A rolling bearing is provided between the input part and the output part, the output hub is divided into a ring part, which contains an output-side bearing seat, and a hub part, which contains internal teeth.