| 摘要 |
A motor, for example, for a vehicle, has a pair of friction washers (8a, 8b) inserted onto its armature shaft (S) for reducing the vibration of sintered bearings (5a, 5b) supporting the armature shaft and preventing oil from being sprayed. Each friction washer (8a) has a circular dishshaped extension surrounding a respective bearing, and protrusions (80) received in grooves associated with the shaft (S) or with a commutator (4) carried thereby. The use of such friction washers reduces the number of parts in the motor and prevents slippage whereby the thrust gap is maintained. A brush holder stay (31), to which a brush holder (30) is fixed, is fixed to the motor housing (1) by way of a rubber damper (9). This reduces the resonance of the brush holder and prevents chattering noise (brush noise) being transferred to the housing. A mounting bracket is disclosed.
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