Abstract: An antifriction bearing, in which the outer ring is supported in the bore of a rotating machine part and secured by a retaining ring against axial displacement. The retaining ring is snapped into a circumferential groove of the bore and is supported, freely movable towards the outside in the radial direction, in the axial direction on the side of a conical surface facing away from the inner ring. By this structure, the axial contact pressure of a gasket of a polymeric material, which is disposed between the retaining ring and the radial antifriction bearing, and which bridges the gap between the outer ring and the inner ring of the antifriction bearing, increases as the rotational speed increases.

Abstract: A flywheel assembly having a first flywheel ring joined to the drive shaft and a second flywheel ring joined to the driven shaft, the two rings being mounted concentrically one inside the other for relative rotation. A spring and a damping system are provided parallel to one another between the first and second flywheel ring to inhibit relative rotation. The damping system is provided with a disengaging device by which its damping action is disabled, such that the spring alone is active, in the event of a relative rotation of more than 30.degree..

Abstract: A flywheel has first and second axially-spaced, coaxial flyrings. At least one resilient element connects the flyrings for permitting relative rotational displacement therebetween. A damping device also connects the flyrings operatively in parallel with the resilient element for impeding the relative rotational displacement of the flyrings permitted thereby after some, lost relative rotational displacement up to about .+-.30.degree..