| 摘要 |
PROBLEM TO BE SOLVED: To provide a final speed reduction device capable of improving lubricity without complicating the structure of a casing.SOLUTION: A final speed reduction device 1 comprises: a casing 3 in which a lubricant is accommodated; a final reduction gear 7 provided in an integrally rotatable manner in a rotary member 5 which is accommodated in the casing 3 and disposed in a rotatable manner; and a bearing 9 that is disposed at a back side of the final reduction gear 7 and supports the rotary member 5 in a rotatable manner. The casing 3 includes a first case portion 13 and a second case portion that are separated in a mating surface 11 where both the final reduction gear 7 and the bearing 9 are exposed outside. On the mating surface 11 of the first case portion 13 and the second case portion, an oil passage 17 is provided of which one end is opened towards an outer peripheral side of the final reduction gear 7 and the other end is opened towards the side of the bearing 9.SELECTED DRAWING: Figure 1 |
