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US 7,887,922 B2Granted
Bearings
AssigneeMahle Engine Systems Ltd.
InventorsCarolyn A. Mayston, Charan Preet Singh Johal
Life of this patent
Estimating the term…
Abstract
A plain bearing having a sliding layer of a bearing material thereon is described, the bearing material comprising a polymer-based matrix selected from the group comprising modified epoxy resin and polyamide/amide resin, the matrix having contained therein at least one addition selected from the group comprising: metal powder in the range from 15 to 30 vol %; a fluoropolymer in the range from 1 to 15 vol %; ceramic powder in the range from 0.5 to 20 vol %; and, silica in the range from 2 to 15 vol %.
Claims35
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 %.
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, the polymer-based matrix;
- 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 %.
A plain bearing comprising:
- a strong backing material substrate, the substrate having a sliding layer of a polymer-based bearing material thereon and being adhered to the substrate by adhesive properties of the polymer-based matrix material, the polymer-based bearing material comprising a polymer-based matrix 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 1 to 15 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 the polymer-based bearing material includes a total content of solids addition not to exceed 35 vol % in the form of the particles of the metal powder, the particles of the fluoropolymer content, any ceramic powder, and any silica.
Dependencies are inferred from the claim text.