Ks Gleitlager Gmbh

Sachtleben Chemie Gmbh

Institut Für Verbundwerkstoffe Gmbh

Frank Haupert

Wolfgang Bickle

Werner Schubert

Jochen Winkler

Gunter Buerkle

Birgit Bittmann

Nicole Knör

A sliding bearing for engine applications, in particular a sliding bearing shell for the mounting of the crankshaft or the camshaft or for use as a connecting-rod bearing shell, has a metallic supporting layer and, applied on top of that, a bearing metal layer of aluminum alloy, copper alloy or brass, the bearing metal layer having an 8-20 &#x3bc;m thick PTFB-free PAI-based coating applied on top of it, the PAI-based coating having 5-15% by weight zinc sulphide, 5-15% by weight graphite and 5-15% by weight TiOwith the ratio of zinc sulphide and graphite respectively to TiOin terms of their percentage by weight being 0.6-1.4 and the zinc sulphide and TiObeing present in a particle size of &#x2266;0.7 &#x3bc;m.

Sliding bearing shell for engine applications

The invention relates to a plain bearing composite material with a metallic base layer, optionally with a porous support layer applied thereto and a lead-free bearing layer, forming a bearing surface for a bearing partner with a bearing surface material made from plastic with PEEK and a lubricant in the form of zinc sulfide and/or barium sulfate. The plain bearing composite material is characterised in that the bearing material comprises PEEK as matrix-forming plastic component and the lubricant is in the form of 3&#x2013;15 wt. % zinc sulfide and/or barium sulfate and a hardening component in the form of 3&#x2013;15 wt. % titanium dioxide and additionally 5&#x2013;25 wt. % carbon fibers and 5&#x2013;15 wt. % graphite particles.

Plain bearing composite material

The invention relates to a plain bearing composite material provided with a metallic support layer, optionally with a porous carrier layer applied thereto, and with a lead-free sliding layer, which forms a sliding partner and whose sliding layer material is based on plastic. The aim of the invention is to provide a plain bearing composite material that has a long serviceable life when used a high temperatures. To this end the sliding layer material comprises PEEK as a matrix forming plastic constituent, a lubricant provided in the form of zinc sulfide, a hardening constituent provided in the form of titanium dioxide, and additionally comprises carbon fibers. The weight percentage proportion of the lubricant and of the hardening constituent with regard to the mass of the sliding layer material ranges from 5 to 15% by weight, and the lubricant and the hardening constituent are provided in the form of fine particles having a particle size D-value of no greater than 500 nm.

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Stelzenberg, Germany

Frank Haupert