Friction bearing composite material with a metal base layer
AssigneeKS Gleitlager GmbH
InventorsWolfgang Bickle, Werner Schubert, Thomas Storch
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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.
Claims15
A sliding bearing composite material for use with a sliding partner, the material comprising:
- a metallic support layer;
- a porous carrier layer disposed on said support layer;
- and
- a sliding layer forming a sliding surface for the sliding partner, said sliding layer disposed on said carrier layer to fill pores in said carrier layer, said sliding layer containing at least 60 percent by volume of PTFE, 10 to 25 percent by volume of zinc sulfide, 1.5 to 3.5 percent by volume of carbon fibers, and 1 to 7 percent by volume of PFA.
Dependencies are inferred from the claim text.