... reducer gear parts, Ratchet wheel etc. 3 Oil BearingsOil bearings, oilless bearings, bushing bearings, bearing shaft/block. 4 Aluminum Die CastingsAluminum die casting parts, aluminum shaft ... ,rotors,pulley.Other sintered parts like bushings, sleeves, pistons, connecting rod, fasteners, nuts, rotors, stators, timing pulley, camshaft, toothed pulley, splined hub ...