摘要 |
A bearing having improved wear resistance has a bearing material of a copper- tin-bismuth alloy which may also include phosphorus which has excellent strength, due to the solid solution of copper, tin and phosphorus (when used), attached to a steel backing shell. The material also has good lubricity as a result of the presence of the bismuth which also promotes tin mobilization and formation of a layer of tin on the bearing surface upon use of the bearing. The addition of small amounts of relatively small hard particles in the copper-tin-matrix, particularly Fe3P, MoSi2 or a mixture thereof, provides a suitable hard surface artifact to improve the wear resistance of the bearing material. The bearing includes a sintered powder compact bearing material of a copper-tin-bismuth alloy powder and a metal compound powder which is bonded to a steel backing shell, wherein the metal compound powder has an average particle size of less than 10 µm. |
申请人 |
FEDERAL-MOGUL CORPORATION;SAXTON, DAVID, M.;CARPENTER, JAMES, M.;SEVENSKI, GREGORY, W.;SCHMITT, HOLGER;ANDLER, GERD |
发明人 |
SAXTON, DAVID, M.;CARPENTER, JAMES, M.;SEVENSKI, GREGORY, W.;SCHMITT, HOLGER;ANDLER, GERD |