| 摘要 |
A planetary gear unit including a first planetary gear unit having an arm member supporting a pinion shaft, the pinion shaft supporting a planet pinion. The arm member includes an extending portion which extended to a point adjacent a sun gear engaged with the planet pinion. A second planetary gear unit is positioned adjacent the planet pinion of said first planetary gear unit and a thrust washer is disposed between the arm member and the second planetary gear unit. A radiating conduit is formed on the contacting surface of the thrust washer or the arm member for supplying lubricating oil to an inner surface of the planet pinion from a point adjacent the sun gear. |
