Patent ID: 7887922

Claim:
A plain bearing comprising: a strong backing material substrate, the substrate having one of (i) a sliding layer of a polymer-based bearing material thereon, the polymer-based bearing material comprising a polymer-based matrix and being adhered directly to the substrate by adhesive properties of the polymer-based matrix material; and (ii) a layer of a metallic bearing material thereon, with a sliding layer of a polymer-based bearing material on the metallic bearing material, the polymer-based bearing material comprising a polymer-based matrix and being adhered directly to the metallic bearing material by adhesive properties of the polymer-based matrix material; the polymer-based matrix material selected from the group consisting of a modified epoxy resin and a polyimide/amide resin, the matrix resin having contained therein particles of a metal powder in the range from 15 to 30 vol % and particles of a fluoropolymer content lying in the range from approximately 2 to 8 vol %, and selectively including an addition selected from the group consisting of a ceramic powder in the range from 0.5 to 20 vol %, and, silica in the range from 2 to 15 vol %, wherein a total solids content of the polymer-based bearing material in the form of the particles of the metal powder, the particles of the fluoropolymer content, any ceramic powder, and any silica does not exceed 35 vol %.