| 摘要 |
Lubricating oil supply holes (313r) are formed in a first ring gear (31r) of a first planetary gear mechanism (31), and lubricating oil passage holes (53o) are formed in a tubular part (53a) of the brake hub (53) of a brake (B2). In addition, a space (31o) is formed between the outer circumferential surface of a connecting part (3117c), which connects a leg part (3116c) and a planar part (3111c) of a carrier main body (311c) of a first carrier (31c) of the first planetary gear mechanism (31), and the inner circumferential surface of a flange part (53b) of the brake hub (53). Furthermore, both a first pinion gear (31p) and the first ring gear (31r) are configured as helical gears, and when the vehicle is driven forward the first pinion gear (31p) and the first ring gear (31r) engage such that lubricating oil is directed from the engaging part of these gears toward the flange part (53b) side in the axial direction. |
