公开(公告)号：US20220260111A1

公开(公告)日：2022-08-18

申请号：US17579703

申请日：2022-01-20

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Tomoyasu SHIROYA ,  Shigeyoshi MORI

IPC: F16C11/06

Abstract: A ball socket structure is provided, which includes a ball portion and a socket portion, the ball portion and the socket portion being configured to slide against one another, in which the socket portion includes a sliding surface including a PVD coating layer, the sliding surface of the socket portion is a concave spherical surface, and a value (Ds/Rs) of a ratio between a depth Ds of the sliding surface and a radius of curvature Rs of the sliding surface is from 0.05 to 0.70.
[Selected Drawing] FIGS. 1A and 1B

公开(公告)号：US20230228296A1

公开(公告)日：2023-07-20

申请号：US18153393

申请日：2023-01-12

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Tomoyasu SHIROYA ,  Akira ANDO

IPC: F16C33/12

CPC classification number: F16C33/125 ,  F16C33/124 ,  F16C2204/36

Abstract: A sliding member includes a bearing alloy layer and an overlay. The overlay includes a diffusion prevention layer on the bearing alloy layer, and a corrosion prevention layer on the diffusion prevention layer. A surface of the corrosion prevention layer is a sliding surface. The corrosion prevention layer constitutes 50% to 90% of an entire volume of the overlay. The corrosion prevention layer and the diffusion prevention layer each include a corrosion inhibitor and the balance of Bi and inevitable impurities. The corrosion inhibitor is defined as one or more elements that have a higher oxygen affinity than Bi and that form an alloy, a solid solution or an intermetallic compound with Bi. An average concentration of the corrosion inhibitor included in the diffusion prevention layer is lower than an average concentration of the corrosion inhibitor included in the corrosion prevention layer.

公开(公告)号：US20240352970A1

公开(公告)日：2024-10-24

申请号：US18639897

申请日：2024-04-18

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Akira ANDO ,  Tomoyasu SHIROYA

IPC: F16C33/12 ,  F16C17/02

CPC classification number: F16C33/127 ,  F16C17/022 ,  F16C2204/20 ,  F16C2226/40

Abstract: A sliding member includes: a semi-annular metal member having a back metal layer arranged on an outer circumferential surface side and a lining layer made of an Al alloy and arranged on an inner circumferential surface side; an adhesive layer stacked on an inner circumferential surface of the metal member and containing Zn as a main component; an intermediate layer stacked on the adhesive layer and containing Ag, Ni, or Co as a main component; and a cover layer stacked on the intermediate layer and containing Bi, Pb, or Sn as a main component. The adhesive layer extends continuously so as to further cover an axial end face of the metal member, and the ratio of a surface area of the adhesive layer covering the axial end face to a surface area of the axial end face is 30% or more.