公开(公告)号：US20210180672A1

公开(公告)日：2021-06-17

申请号：US17184552

申请日：2021-02-24

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenji Fukasawa ,  Kenji Kato

IPC: F16H48/38 ,  F16H48/08 ,  F16H55/17

Abstract: A differential gear accommodated in a differential case, includes: an axial cylinder having a cylindrical shape fitted onto a shaft; an annular wall having an annular shape protruding from an outer circumferential surface of the axial cylinder; a gear protruding from the annular wall on one side with respect to an axial direction of the shaft; a reinforcing rib protruding from an outer circumferential surface of the annular wall; and a first recess formed by boring the annular wall and opening the other side with respect to the axial direction of the shaft.