Friction bearing composite material with a metal base layer

Details Friction bearing composite material with a metal base layer Friction bearing composite material with a metal base layer

2007-07-31

2007-07-31

Joyce, William C. (Department: 3682)

Bearings

Rotary bearing

Plain bearing

C384S279000, C384S297000, C384S902000, C384S908000

Reexamination Certificate

active

10475309

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.

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