| 摘要 |
A brake disk for a disk brake, in particular, for motor cycles or bicycles, includes a brake band of a first material which has a high heat resistance and an inner part ( 20 ) of a second material which has a lower density than the first material. The brake band and the inner part ( 20 ) each have a plurality of extensions, which in each case are arranged in pairs bordering one another. A plurality of connecting elements connect the brake band ( 10 ) to the inner part ( 20 ) by being received in recesses ( 13, 23 ) formed in the extensions. Thus, a divided brake disk has little deformation or wear in the region of the connection between the brake band and the inner part in combination with a low weight. Specifically, the recess ( 23 ) is formed in such a way that the connecting line ( 51 ) between the ends of the recess ( 23 ) is at an angle alpha of from 15 to 85° to the tangential direction ( 50 ).
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