Brake disc for automobile disc brakes has 2 friction ring discs attached to disc head with ventilation channels between radial struts of friction disc rings provided with radial rupture points

摘要

The brake disc of cast iron has a disc head (1) and 2 friction ring discs (3) attached to the disc head, with ventilation channels (4) defined between radial struts (2) of the friction ring discs, with a corrugated connection (5) between the friction ring discs and the disc head. The radial struts are provided with radial rupture points (7) in the plane of the ventilation channels, for separation of the friction ring discs from one another while maintaining their connection with the disc head.