| 摘要 |
The invention relates to a brake disk comprising two friction rings (3, 4) which are connected via links (2) and between which an air channel (5) is configured, as well as support elements (6) which are moulded to the inner peripheral area of the brake disk and designed for engaging cams of a hub of an axle of a (utility) vehicle. In the inner peripheral area of the brake disk (1) the support elements (6) bridge the air channel (5) in the manner of links and axially protrude into the area of the friction rings (3, 4) to such an extent that the outer surfaces (3a, 4a) of the friction rings (3, 4) are situated at an axial distance from the outer surfaces (6a) of the support elements (6) even in the maximum permissible state of wear. Openings (11, 16, 17) in the axle hub (2) and the brake disk (1) ensure sufficient cooling.
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