Brake disc for vehicle

摘要

The brake disc for the disc brakes of vehicles is made of a carboniferous material. It is ventilated from the inside, and is composed of two separate friction rings fitted permanently to each other by pins (30) with a thickened middle part (31) and end parts (32) set back from the middle part. The end parts may project into borings (34) in the two discs. The thickened middle part may form a precision-clearance support for the two friction discs. At its ends (33), the borings for the ends of the pins may be blind borings in both friction rings.