| 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
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