Jtekt Corporation

Takahiro Yoshiyama

Shinichiro Nakajima

Tsune Kobayashi

A vehicle differential apparatus includes: a differential case; two side gears; and two pinions. An axial center of each pinion is provided with a first pinion shaft insertion hole. A pinion shaft is inserted in the first pinion shaft insertion holes. An inner peripheral surface of the first pinion shaft insertion hole of each pinion is provided with two sliding surfaces that are slidable on one of two pinion inner peripheral surface-supporting portions of the pinion shaft, and a non-contacting surface that is not able to contact the pinion inner peripheral surface-supporting portion. The sliding surfaces and the non-contacting surface of each first pinion shaft insertion hole are disposed at positions adjacent to each other in the axis direction of the first pinion shaft insertion hole.

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Kawagoe, Japan

Takahiro Yoshiyama