Clutch release bearing assembly

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. On the opposite side it is at least partially interlocked with a bearing surface on the drive part formed by one of the flanks of the groove on the drive part. The other flank of this groove is movable axially relative to the first-mentioned flank and forms part of the decoupling part. This comprises a positioning device which is elastically deformable inwardly and which has an outside diameter when unstressed which is greater than the inside diameter of the engagement bearing surface on the bush. The positioning device bears on the engagement bearing surface during assembly so as to urge the decoupling part towards the transverse abutment member.