| 摘要 |
PROBLEM TO BE SOLVED: To reduce vibration of a motor, without having to reduce the torque obtained with a current supplied from a DC power source. SOLUTION: In a DC motor 3, in which a current from a DC power source is supplied to a winding 3 via brushes 5, an angleθbetween the brushes 5 is set as a value obtained by formula (1)θ( deg.)=360×(1/'-1/β) (1), whereαis the number of magnets andβis the number of slots.
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