| 摘要 |
PURPOSE: A motor is provided to extend the lifetime of a bearing by evenly distributing pre-load added to an outer ring of the bearing by using repulsive force of a first magnet and a second magnet. CONSTITUTION: A bracket(110) is mounted on housing. A rotary shaft(200) is supported on the center of the housing which can be rotated. A rotor(300) is fixed to the rotary shaft. A stator(400) is fixed to the inner circumference of the housing. The stator rotates the rotor by interacting with the rotor when power is applied. Bearing pockets(530, 540) are mounted on the housing and the bracket. A bearing supporting the rotary shaft is mounted on the bearing pocket. A bearing washer is included in the bearing pockets. The bearing washer provides pre-load to an outer ring of the bearing by using repulsive force. |
