Patent ID: 7357228

Claim:
A disk brake ( 1 ) comprising: a disk rotor ( 8 ); a support member ( 4 ) that is mounted on a car body member ( 11 ) at a side near a car body with respect to the disk rotor ( 8 ) and straddles the disk rotor ( 8 ) in a rotor axis direction; an inner pad ( 2 ) movably supported in the rotor axis direction by the support member ( 4 ) at a side near the car body with respect to the disk rotor ( 8 ); an outer pad ( 3 ) movably supported in the rotor axis direction by the support member ( 4 ) at an outer side of the car body with respect to the disk rotor ( 8 ); wherein the outer pad ( 3 ) has an outer pad friction coefficient less than an inner pad friction coefficient of the inner pad ( 2 ), and an outer braking torque generated between the outer pad ( 3 ) and the disk rotor ( 8 ) is less than an inner braking torque generated between the inner pad ( 2 ) and the disk rotor ( 8 ); and wherein the outer pad friction coefficient of the outer pad ( 3 ) is at least 7% smaller than the inner pad friction coefficient of the inner pad ( 2 ).