Brake disc for automobile disc brake with waveform coupling zones between disc head and friction ring provided with friction surfaces

摘要

The brake disc has a disc head (1) and an attached cast iron friction ring (2) with 2 friction ring discs having friction surfaces (3,3'), ventilation channels and radial rib coupling elements between the friction ring discs. The periphery of the disc head has a series of projections (7) fitting into corresponding seatings (6) around the inside of the friction ring, the retaining positions offset from one another along a waveform curve in the axial direction.