Patent ID: 7472777

Claim:
A brake disk ( 2 ) with at least one friction ring ( 4 ) which is connected to a brake disk hub ( 6 ) by means of a joining arrangement ( 12 ) in which the friction ring ( 4 ) and the brake disk hub ( 6 ) each feature a concentric ring land ( 8 , 10 ) and the ring lands ( 8 , 10 ) of the friction ring ( 4 ) and the brake disk hub ( 6 ) overlap, wherein elements of the joining arrangement ( 12 ) pass through recesses ( 14 , 16 ) in the ring lands ( 8 , 10 ), said brake disk further comprising a support ring ( 18 ) such that the ring land ( 8 ) of the friction ring ( 4 ) is located between the support ring ( 18 ) and the ring land ( 10 ) of the brake disk hub ( 6 ), wherein the ring lands ( 8 , 10 ) are connected by means of connecting pins ( 20 ) which are fixed in recesses ( 22 ) of the support ring ( 18 ), and wherein the ring land ( 8 ) of the friction ring ( 4 ) exhibits slots ( 34 ) in a radial direction, which are arranged circumferentially around the ring land ( 8 ) and which run from an inside of the ring land ( 8 ) into the friction ring ( 4 ), and feature an end bore ( 36 ) on their outer end, which runs partially through the ring land ( 8 ) and through the friction ring ( 4 ), wherein the friction ring ( 4 ) is thicker than the ring land ( 8 ), wherein a step is formed at a location where the ring land ( 8 ) is connected to the friction ring ( 4 ), and wherein the end bore ( 36 ) runs through the step.