| 摘要 |
PURPOSE:To reduce a shock noise at colliding contact to a pinion mate gear, by forming a side gear and axle shaft relatively axially movable. CONSTITUTION:Position relation between the first engagement recessed part 6 and the second engagement recessed part 7 is arranged in such a manner that under a condition adapted with the point end of an axle shaft 4 to a pinion mate shaft 11 further pressed with a side gear 2 to a pinion mate gear 10, a distance of at least backlash B is provided between an internal wall 6b in the outside of the recessed part 6 and internal wall 7b in the recessed part 7. Slide resistance force between a snap ring 8 and the axle shaft 4, generated when the axle shaft 4 is tightened by the snap ring 8, is arranged smaller than tension of a spring pressing the axle shaft 4 to the direction of a differential gear 1, at movement of the side gear 2, the axle shaft 4 is arranged not to move together. |
