发明名称 |
Rolling bearing |
摘要 |
A rolling bearing has races and a rolling element. At least one of the races and the rolling element is made of a carburized or carbonitrided alloy steel. The content of a fine carbide present in the surface layer of the one element of the rolling bearing is 20-50 vol %. The content of retained austenite in the surface layer is 10-25 vol %. The rolling bearing provides a long-life rolling bearing suitable for use in a transmission and engine.
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申请公布号 |
US5030017(A) |
申请公布日期 |
1991.07.09 |
申请号 |
US19900557574 |
申请日期 |
1990.07.24 |
申请人 |
NIPPON SEIKO KABUSHIKI KAISHA |
发明人 |
MURAKAMI, YASUO;MITAMURA, NOBUAKI |
分类号 |
C23C8/22;C23C8/32;F16C33/30;F16C33/62 |
主分类号 |
C23C8/22 |
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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