| 摘要 |
PROBLEM TO BE SOLVED: To avoid or reduce occurrence of a disk brake noise in a disk brake provided with a brake disk and a brake caliper, in which a lining device is provided, the brake disk has a concave brake disk face at the side facing a concave lining surface of the lining member of the lining device, and the face of the disk brake cooperates with the lining face. SOLUTION: The brake disk having the concave brake disk face is formed with a plurality of structures, the brake disk provides a grooved recess on at least brake disk face, or a lining member of the lining device provides a high output lining mixture.
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