Abstract: A clutch release bearing assembly comprises a coupling part adapted to couple a clutch release bearing to a clutch release device of a clutch. A substantially axial bush is attached to the clutch release device. There is an engagement bearing surface at the end of this bush. A drive part which is part of the clutch release bearing comprises an annular groove. A decoupling part is slidably mounted on the drive part. A fastening device operative in traction is disposed between the coupling part and the drive part. It couples these parts in the axial direction from the clutch release device to the clutch release bearing. It comprises an annular fastening ring which is disposed around the axis of the assembly. This ring is elastically deformable in the radial direction and at least partially interlocked on the clutch release bearing side with a bearing surface on the coupling part.

Abstract: This invention relates to a clutch mechanism, having a cover which includes an annular lateral wall and a pressure plate adapted to engage at least one transverse bearing shoulder formed integrally with the cover. The bearing shoulder is intended to axially retain the pressure plate relative to the cover against the action of the clutch spring, e.g. during storage. The retaining shoulder is formed directly on the cover, for example on the peripheral radial rim thereof, by means of a recess formed in the lateral wall. This enables a bayonet-type mounting of the pressure plate within the cover.