BEARING SUPERIOR IN STRENGTH, FRICTION AND ABRASION RESISTANCE AND SEIZURE RESISTANCE FOR STARTER OF FOUR-WHEEL VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a bearing which is made from a copper-based sintered alloy containing Sn and is superior in strength, friction and abrasion resistance and seizure resistance for a starter of a four-wheel vehicle.;SOLUTION: The bearing superior in strength, friction and abrasion resistance and seizure resistance for the starter of the four-wheel vehicle is made from the copper-based sintered alloy containing Sn has a composition comprising, by mass%, 8 to 10% Sn, 0.5 to 1% C, 0.5 to 1.5% Bi, 0.1 to 0.3% P, 0.3 to 2% calcium fluoride and the balance Cu with unavoidable impurities.;COPYRIGHT: (C)2008,JPO&INPIT