公开(公告)号：US20220056949A1

公开(公告)日：2022-02-24

申请号：US17416283

申请日：2019-12-13

Applicant: TPR CO., LTD.

Inventor： Masaki IKEDA ,  Shuichirou HAMANAKA

IPC: F16C17/04 ,  F16C33/20

Abstract: A thrust washer is provided with a ring-shaped portion that surrounds an insertion hole, the thrust washer is provided with a sliding surface and an oil groove configured to allow lubricating oil to flow in, the oil groove is provided with an opening portion configured to allow the lubricating oil to flow in from the insertion hole side in an inner peripheral end side, an outer periphery end side of the ring-shaped portion of at least one of the oil groove is provided with an oil stop wall which is configured to suppress flow of the lubricating oil toward an outer periphery side of the ring-shaped portion, and a sliding area ratio of each of the sliding surfaces to a projection plane in plan view of the ring-shaped portion is provided within a range of from 60% to 85%