| 摘要 |
A vehicle differential apparatus includes: a differential case (2); two side gears (5L, 5R); and two pinions (3, 4). An axial center of each pinion (3, 4) is provided with a first pinion shaft insertion hole (3D, 4D). A pinion shaft (50) is inserted in the first pinion shaft insertion holes (3D, 4D). An inner peripheral surface of the first pinion shaft insertion hole (3D, 4D) of each pinion (3, 4) is provided with two sliding surfaces (30a, 31a, 40a, 41a) that are slidable on one of two pinion inner peripheral surface-supporting portions (50A, 50B) of the pinion shaft (50), and a non-contacting surface (32A, 42A) that is not able to contact the pinion inner peripheral surface-supporting portion (50A, 50B). The sliding surfaces (30a, 31a, 40a, 41a) and the non-contacting surface (32A, 42A) of each first pinion shaft insertion hole (3D, 4D) are disposed at positions adjacent to each other in the axis direction of the first pinion shaft insertion hole (3D, 4D). |
