Release bearing mounting

A pull-type clutch release bearing assembly having an axis and comprising a clutch release bearing coupled to a clutch release device of a clutch in at least one axial direction for operating the clutch release device, said clutch release bearing comprising a bearing member and an axial bush extending axially away from said bearing member through the clutch release device, a coupling member having a radial bearing flange engageable with a side of the clutch release device axially remote from said bearing member for actuating the clutch release device in the one axial direction, a radially deformable coupling ring disposed around the axis of the assembly for releasably connecting said coupling member and said axial bush, retaining means axially connecting said coupling member to the clutch release device, said coupling ring normally engaged between a bearing surface on said coupling member facing axially in the direction away from said bearing member and an opposite bearing surface on said axial bush facing axially in the direction toward said bearing member, said opposite bearing surface defining one flank of an annular groove, a decoupling member defining the other flank of said annular groove and mounted for axial sliding movement on said axial bush between a normal position relatively axially adjacent said bearing member and a decoupling position relatively axially remote from said bearing member in which said decoupling member is adapted to drive said coupling ring out from between said bearing surface and said opposite bearing surface so that the coupling ring is maintained in engagement with said coupling member.