Back to results
US 12,305,139 B2Granted
Sliding element comprising polymer overlay
AssigneesMahle International GmbH, Mahle Engine Systems UK Ltd
InventorsJonathan Fair, Jennifer Harvey
Life of this patent
Estimating the term…
Abstract
A bearing element may include an overlay layer which forms a bearing surface against a steel journal or the like. The overlay layer may be formed from a bearing material comprising a polymer matrix of polyamide-imide polymer material, melamine cyanurate particulate, and metal oxide particulate. A method of forming the bearing element comprising the bearing material are also provided.
Claims18
A bearing material, comprising:
- a polymer matrix of polyamide-imide polymer material;
- melamine cyanurate particulate;
- metal oxide particulate;
- greater than 25 wt % metallic particulate dispersed within the polymer matrix, the metallic particulate comprising metal flakes with a D50 size of between about 5 μm and about 30 μm along a maximal dimension;
- and
- a leveler in an amount of between 0.01 wt % and 0.1 wt %.
3 more elements
A method of forming an overlay layer of bearing material on a substrate, the method comprising:
- mixing polyamide-imide polymer material with melamine cyanurate particulate, metal oxide particulate, metallic particulate, and at least one solvent to form a pre-formulation;
- applying the pre-formulation to a substrate;
- curing the pre-formulation to form an overlay layer of bearing material;
- wherein the overlay layer of bearing material comprises greater than 25 wt % metallic particulate, the metallic particulate comprising metal flakes with a D50 size of between about 5 μm and about 30 μm along a maximal dimension;
- and
- wherein the mixing further includes a leveler in an amount of between 0.01 wt % and 0.1 wt %.
3 more elements
Dependencies are inferred from the claim text.