Patent ID: 8267800

Claim:
A torsionally elastic clutch with a primary part and a secondary part, which are connected with each other to transfer torque, with an elastic connecting member having a first attachment surface placed externally in the radial direction of the clutch, and a second attachment surface placed internally in the radial direction of the clutch, of which one is connected to transfer torque with the primary part and the other with the secondary part; and for generation of pre-stressing by compression, the two attachment surfaces are displaced relative to each other in the axial direction of the clutch vis-à-vis a non-pre-stressed state; with each attachment surface having at least one area that runs inclined relative to the axial direction, with the two inclined areas to be displaced toward each other vis-à-vis a non-pre-stressed state of the elastic connecting member, so that a compression force is transferred between the primary part, the secondary part and the elastic connecting member; with a tensioning device, which maintains the relative displacement of the two attachment surfaces and thus the pre-stressing by compression; characterized in that between the primary part and the secondary part an axial bearing is provided, which permits a relative twisting in the circumferential direction of the clutch between the primary part and the secondary part, and additionally the tensioning device applies a compressive stress to the axial bearing, which acts as the normal force to a sliding friction force in the axial bearing with relative twisting between the primary part and the secondary part.