Clutch disc for friction clutch of motor vehicle, has shock absorber, and coil springs and annular friction linings, which are arranged such that circle radius to friction lining width ratio lies between specific values

摘要

The disc (10) has a main shock absorber (A1) with drive washers (16A, 16B) integrated in rotation, and an annular web (24) coaxial to and movable in rotation relative to the washers. Coil springs (26A) with conditional activation transmit torque between the washers and the web. The springs have an axis (X) tangent to a circle of radius (Rs). Annular friction linings (12) of width are mounted directly or indirectly on any of the washers or the web. The springs and the linings are arranged such that the radius to width ratio lies between 1.8 and 2.