发明授权
- 专利标题： Rolling bearing and belt continuously variable transmission
- 专利标题（中）： 滚动轴承和皮带无级变速器
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申请号： US10414308申请日： 2003-04-16
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公开(公告)号： US06923576B2公开(公告)日： 2005-08-02
- 发明人: Susumu Tanaka , Shinji Fujita , Hideyuki Uyama , Nobuaki Mitamura
- 申请人： Susumu Tanaka , Shinji Fujita , Hideyuki Uyama , Nobuaki Mitamura
- 申请人地址： JP Tokyo
- 专利权人： NSK Ltd.
- 当前专利权人： NSK Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JPP.2002-121078 20020423; JPP.2002-153938 20020528
- 主分类号： C21D9/36
- IPC分类号： C21D9/36 ; C21D9/40 ; C22C38/04 ; C22C38/18 ; C23C8/20 ; C23C8/30 ; F16C33/32 ; F16C33/62
摘要：
A rolling bearing has the radius of curvature of the raceway on an inner ring and an outer ring is from not smaller than 50.1% to not greater than 51.9% of the diameter of the balls, and at least one of the compositions of the bearing is obtained by forming an alloy steel having a carbon (C) content of from not smaller than 0.50% to not greater than 0.90%, a chromium (Cr) content of from not smaller than 3.0% to not greater than 15.0%, a manganese (Mn) content of from not smaller than 0.10% to not greater than 2.0%, a silicon (Si) content of from not smaller than 0.10% to not greater than 2.0%, a molybdenum (Mo) content of zero or not greater than 2.0% by weight, and a vanadium (V) content of zero or not greater than 2.0%, by weight.
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