Norton Pampus Gmbh

Norton Company

Saint-Gobain Performance Plastics Pampus Gmbh

Friedrich Harig

Dominique Petit

Peter Woelki

Peter Wölki

Heinz Haardt

The invention relates to a composite material which is to be used in sliding bearings and comprises a metallic support () and at least one reinforcement material having an open structure (). Said support () and reinforcement material () are connected to each other by means of a metallic connection. An overlay () which is a polyethylene(PE)-based layer is provided on the reinforcement material () as an additional layer.

Sliding bearing material

A method is provided for fabricating a self-lubricating bearing as a laminate of a metallic substrate and a series of raised structures formed integrally therewith and extending orthogonally therefrom. A fluoropolymer sliding or bearing layer is superposed with the substrate, with the raised structures embedded therein. The raised structures serve to hold the bearing layer in place to help prevent it from sliding along the surface of substrate during bearing operation. This anchorage to the substrate enables a relatively thick bearing layer to be utilized to relatively reduce tendency to creep. Alternatively, the structures provide a bearing fabricated according to the disclosed method having a relatively thin load bearing layer with a relatively constant friction coefficient over its life, with the structures acting as thermal and electrical bridges for relatively high heat and electrical conductivity between the substrate and a supported article such as a rotating shaft. The structures also may be in direct contact with the supported article to help prevent bedding-in. In this regard, the bearings are provided with a relatively low coefficient of friction, long bearing life, resistance to creep and mechanical stresses, and are electrically and thermally conductive.

Method of making self-lubricating bearing

A self-lubricating bearing is fabricated as a laminate of a metallic substrate and a series of raised structures formed integrally therewith and extending orthogonally therefrom. A fluoropolymer sliding or bearing layer is superposed with the substrate, with the raised structures embedded therein. The raised structures serve to hold the bearing layer in place to help prevent it from sliding along the surface of substrate during bearing operation. This anchorage to the substrate enables a relatively thick bearing layer to be utilized to relatively reduce tendency to creep. Alternatively, the structures provide a bearing having a relatively thin load bearing layer with a relatively constant friction coefficient over its life, with the structures acting as thermal and electrical bridges for relatively high heat and electrical conductivity between the substrate and a supported article such as a rotating shaft. The structures also may be in direct contact with the supported article to help prevent bedding-in. In this regard, the bearings are provided with a relatively low coefficient of friction, long bearing life, resistance to creep and mechanical stresses, and are electrically and thermally conductive.

Self-lubricated bearing

A maintenance-free sliding bearing composed of a metal support and a layer which is directly applied thereto and which consists of a copolymer of ethylene-tetrafluoroethylene forming an intermediate layer to which a second sliding layer of plastics is applied.

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Willich, Germany

Friedrich Harig