| 摘要 |
PROBLEM TO BE SOLVED: To provide a disc brake capable of properly suppressing partial wear of lining.SOLUTION: A disc brake includes a caliper 14 in which a piston 21 for pushing at least one friction pad 12 of a pair of friction pads 12 and 13 arranged on both surfaces of a disc 15 is movably arranged within a cylinder 25. In the piston 21, a non-pushing region, which does not push the friction pad 12, is formed on a surface 90 facing the friction pad 12. The piston 21 is rotated in one direction depending on wear of the friction pad 12 with respect to the cylinder 25. |
