| 摘要 |
Provided is a technology whereby leakage of oil from inside a case to outside the case can be suppressed, as a result of comprising: a motor 100; a deceleration unit 200 that, as a result of having oil interposed therein, operates smoothly and decelerates the engine speed of the motor 100; a case 400 that houses the deceleration unit 200; and a ventilation member 500 attached to the case 400 and having a ventilation membrane that captures oil moving from inside the case 400 towards outside the case 400 and also has a plurality of holes formed therein that permit gas to flow between the inside and the outside. |
