公开(公告)号：US20250043816A1

公开(公告)日：2025-02-06

申请号：US18786654

申请日：2024-07-29

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Shinji OKANO

IPC: F16C9/02

Abstract: There is provided a half thrust bearing having a constant bearing wall thickness between a slide surface and a back surface, and including an approximately flat center region and two end regions on both circumferential sides of the center region. Each end region extends from each circumferential end of the half thrust bearing toward a circumferential center over a circumferential angle of 5° or more and 35° or less. A reference surface is defined as an imaginary plane which is perpendicular to an axial direction of the half thrust bearing, parallel to the slide surface in the center region, and located away from the slide surface. An axial distance between the slide surface and the reference surface is minimum in the center region, and continuously increases circumferentially from a center region side toward a circumferential end side at any radial position in each end regions.