| 摘要 |
An electric disk brake for a vehicle, includes an electric motor in which a brush coming into slide contact with a commutator provided on an output shaft rotatably supported in a motor housing is held by a brush holder secured to the motor housing, and a rotation angle detection sensor for detecting a rotation angle of the electric motor. A brake piston driven by the electric motor is slidably fitted to a caliper body. A detected portion to be detected by the rotation angle detection sensor housed and placed in the motor housing is provided on the output shaft in the motor housing. Thus, the rotation angle detection sensor can be provided without any special waterproof seal and with a reduced number of components.
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