Patent · US Expired

Friction bearing composite material with a metal base layer

US7249890B2 · kind B2 · utility

4Cited by

3References

15Claims

0Family size

Assignee

KS GLEITLAGER GMBH · DE

Inventors

Wolfgang Bickle · Reilingen, DE
Werner Schubert · Wiesloch, DE
Thomas Storch · Gänserndorf, AT

Key dates

Filing date	May 31, 2002
Grant date	Jul 31, 2007
Priority date	—
Expiry date	Jan 17, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S384/908
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A friction bearing composite material comprises a metal base layer, a porous support layer applied thereto, and a low friction layer made from PTFE forming a bearing surface for a bearing partner. The low friction material forming the sliding surface also fills the pores in the support layer and comprises at least 60 vol. % PTFE and 10-25 vol. % zinc sulphide. In order to achieve a high wear resistance with a low coefficient of friction, the low friction material further comprises 1.5-3.5 vol. % carbon fibers and 1-7 vol. % PFA.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.