| 摘要 |
PURPOSE: To increase the size of window holes for leading lubricating oil into a housing. CONSTITUTION: Four pairs of (a) to (d) of planetary gears 30A and 30B are arranged so that distances between the pairs of (a) and (b) and pairs of (c) and (d) become larger, and distances between the pairs of (b) and (c) and pairs of (d) and (a) become larger. Also a window hole 15 is formed in the peripheral wall part of a housing 10 which corresponds to the distances (a) and (b) and the distances (c) and (d). |
