| 摘要 |
PURPOSE:To provide a rotor which can abolish the binder for fixing a sensor magnet to a rotor thereby reducing the manhour in rotor making process and besides can reduce the noise and the vibration of a motor. CONSTITUTION:This rotor has such constitution that a snap ring is set on a shaft 2, that a stripe 2a is provided in the position where a sensor magnet 5 is inserted, that gaps 5a and 5b is provided between a shaft 2 and the edge sides of a sensor magnet 5 by enlarging the inside diameters of the edge on snap ring 4 side and the edge on ball bearing side of the sensor magnet 5 more than that of the shaft 2, and that the sensor magnet 5 is press-fit on the stripe section 2a and is positioned by the snap ring 4 and are caught and fixed with a ball bearing 3 and the snap ring 4. |
