| 摘要 |
<p>A motor, wherein a recessed part is provided between the sliding surface of a brush and a commutator and a rotor to prevent abrasive powder produced by the sliding of the brush and the commutator from moving to a rotor side, whereby, since the abrasive powder can be prevented from coming into the rotor, the abrasive powder produced on the brush does not come into the motor and thus the sliding resistance of the rotor is not increased.</p> |
