发明名称 |
LAGER |
摘要 |
A bearing component for use in anti-friction bearings as a bearing ring or rolling member is made from a steel comprising 0.6 to 0.8 wt. % of C, 0.05 to 0.25 wt. % of Si, 0.2 to 0.9 wt. % of Mn, 0.4 to 1.2 wt. % of Cr, one or both of 0.10 to 0.30 wt. % of Mo and 0.03 to 0.10 wt. % of V, and the balance Fe and inevitable impurities. The steel as hardened and tempered contains carbide having a maximum particle size of up to 1.5 mu m, and the amount of the carbide is 2 to 7% in area ratio. The steel therefore has improved cold workability, providing bearing components of a prolonged rolling fatigue life at a reduced cost. <IMAGE> |
申请公布号 |
DE69427238(D1) |
申请公布日期 |
2001.06.21 |
申请号 |
DE1994627238 |
申请日期 |
1994.12.20 |
申请人 |
KOYO SEIKO CO., LTD.;DAIDO STEEL CO. LTD., NAGOYA |
发明人 |
GOTO, MASAO;OHTA, ATSUHIKO |
分类号 |
C22C38/00;C22C38/22;C22C38/24;F16C33/30;(IPC1-7):C22C38/00;C22C38/04;C22C38/02;C22C38/18;C22C38/16;C22C38/14;C22C38/12;C22C38/06;C22C38/08;C22C38/10 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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