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US 4,394,275 AGranted
Composite material for sliding surface bearings
AssigneeKarl Schmidt GmbH
InventorsWolfgang Bickle, Rolf Funke, Rolf Pfoh
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AssigneeKarl Schmidt GmbH
InventorsWolfgang Bickle, Rolf Funke, Rolf Pfoh
Estimating the term…
A composite material for sliding surface bearings comprises a gacking shell of steel, which is covered by a bearing metal layer of sintered porour bronze having a porosity of 25 to 45%. The voids of the bronze layer are filled with a fluorocarbon-lead mixture. The bearing metal layer is covered by an anti-friction layer consisting of the fluorocarbon-lead mixture in a thickness of, for example, 30 to 500 microns. To permit of a machining of the anti-friction layer the bronze layer has a thickness of 250 to 350 microns and a porosity of 25 to 45% and the fluorocarbon-lead mixture comprises 30 to 60% by weight polyvinylidene fluorinde and 20 to 50% by weight lead.
A composite material for a sliding surface bearing comprising a supporting shell of steel, which is covered by a bearing metal layer comprising sintered porous bronze having a porosity of 25 to 45%, the voids of which are filled with a fluorocarbon-lead mixture comprising 30 to 60% by weight polyvinylidene fluoride and 20 to 50% by weight lead, said bearing metal layer in turn covered by an anti-friction layer comprising 30 to 60% by weight polyvinylidene fluoride and 20 to 50% by weight lead, said anti-friction layer having pockets or grooves therein containing a lubricant.
Dependencies are inferred from the claim text.