Bimetal composite boundary lubrication bearing is a copper alloy layer with excellent abrasion resistance and sintering on the surface. The surface of copper alloy layer can be processed into various oil groove, oil storage pit, oil hole and so on according to the working condition. Copper alloy layers can be supplied with lead and lead free alloys. The product is widely used for supporting heavy wheel shaft bushing, supporting belt wheel shaft bushing, tensioning wheel shaft bushing, balance axle bushing, steel plate pin bushing, steering knuckle main pin bushing, connecting rod bushing, valve rocker arm bushing, camshaft bushing, differential bushing, thrust washer, plunger pump side piece, gear pump side piece, etc