| 摘要 |
PROBLEM TO BE SOLVED: To make lubricating oil scraped up by a ring gear of a differential gear into a uniform flow and feed the uniform flow of the lubricating oil toward a rotary shaft support portion so as to ensure appropriate lubrication of the rotary shaft support portion.SOLUTION: Lubricating oil scraped up by a ring gear of a differential gear is fed into an upper space B within a case via a circular arc passage, the lubricating oil is fed into a rotary shaft support portion 10 supporting a rotary shaft as a wheel shaft of the differential gear at a supply oil passage 13, a first stepped portion 15 and a second stepped portion 16 are provided in the supply oil passage 13, to reduce the force of the lubricating oil flowing in the supply oil passage 13 to straighten the flow, and the lubricating oil is fed into the rotary shaft support portion 10 as a uniform flow. |
