发明授权
- 专利标题： Rolling bearing
- 专利标题（中）： 滚动轴承
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申请号： US557574申请日： 1990-07-24
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公开(公告)号： US5030017A公开(公告)日： 1991-07-09
- 发明人: Yasuo Murakami , Nobuaki Mitamura
- 申请人： Yasuo Murakami , Nobuaki Mitamura
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Seiko Kabushiki Kaisha
- 当前专利权人： Nippon Seiko Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-192258 19890725
- 主分类号： C23C8/22
- IPC分类号： C23C8/22 ; C23C8/32 ; F16C33/30 ; F16C33/62
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.