| 摘要 |
PURPOSE: A motor is provide to add a proper amount of preload on a bearing from outside of a motor by screw fitting of a hinge, thereby adjusting amount of preload on the bearing. CONSTITUTION: A motor comprises a housing, a stator, a rotor, a bearing, a bearing mounting portion, a preload hinge, and at least two preload screws. The stator is installed inside of a housing. The rotary shaft passes through the center of a rotor. The rotor is installed to be rotatable by the interaction with the said stator. The bearing supports the rotary shaft to be rotatable in the housing. The bearing mounting portion is formed integrated with the housing in order to settle the bearing. The preload hinge(21) is formed integrated with the bearing mounting portion in order to add pre-load to the bearing. The preload screws(25) are connected in the free end sides of the pre-load hinge. |
