| 摘要 |
PROBLEM TO BE SOLVED: To improve dimensional accuracy and surface accuracy of brush holding parts of a brush holder of an electric motor, and to improve the brush holding performance of the brush holder. SOLUTION: In order to hold brushes 70 in brush holes 65 of brush holding parts 64, which are formed in a brush holder 60 of an electric motor 30, the thicknesses of the brush holding parts 64 are set approximately uniform along the circumferences of the brush holes 65. |
