| 摘要 |
An electric disk brake including a caliper (8) that has a pressing member (14) for pressing brake pads against a disk rotor; an electric motor (39); and a rotary-to linear motion conversion mechanism (19) for converting a rotary motion of the electric motor (39) to a linear motion to transmit the linear motion to the pressing member (14), the pressing member (14) being adapted to move forward according to rotation of the electric motor (39) to press the brake pads against the disk rotor (2) to exert a braking force. The caliper defines a cylinder (11) for containing the pressing member (14), the rotary-to-linear motion conversion mechanism (19), and the electric motor (39). The electric motor (39) is integrated as a motor unit including a motor stator (45), a motor rotor (48), and a motor case (44) for containing the motor stator (45), and the motor rotor (48), and an outer circumferential portion of the motor case being abutted on an inner circumferential portion of the cylinder (11) to support the electric motor (39).
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