| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy for a bearing whose seizure resistance and fatigue resistance are further improved compared with those of the conventional one. SOLUTION: The aluminum alloy for a bearing is composed of, by mass, 2 to 20% Sn, 0.1 to 3% Cu and a hard material whose hardness is more reduced than that of TiC, and the balance Al with inevitable impurities. The hard material is at least one kind selected from TaC and Mo(Si, Al)<SB>2</SB>. The hard material preferably comprises at least one kind selected from TiB<SB>2</SB>, HfC, ZrC and ZrB<SB>2</SB>as well. Further, the content of the hard material is preferably 0.3 to 8 vol.% in total. COPYRIGHT: (C)2007,JPO&INPIT
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