发明名称 |
Shell Type Needle Roller Bearing, Support Structure for Supporting a Compressor Spindle, and Support Structure for Supporting Driving Portion of a Piston Pump |
摘要 |
To further reduce the manufacturing cost of a shell type needle roller bearing, and to ensure high quality of the shell type outer ring by subjecting the outer ring to a heat treatment that needs no adjustment of the atmosphere. The steel sheet to be formed into the shell type outer ring 1 by pressing is made of a medium to high carbon steel containing carbon by not less than 0.3 mass percent. With this arrangement, the material cost and thus the manufacturing cost are lower than when using a conventional low-carbon structural alloy steel sheet or a steel sheet for cold rolling and pressing. Also, it is possible to ensure high quality of the outer ring by subjecting the outer ring to simple heat treatment without the need for carburizing or carbonitriding, which needs adjustment of the atmosphere.
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申请公布号 |
US2008298734(A1) |
申请公布日期 |
2008.12.04 |
申请号 |
US20050584924 |
申请日期 |
2005.02.10 |
申请人 |
OISHI SHINJI;MATSUNAGA HIROSHI;WATANABE YASUYUKI;HIRAOKA TSUNEAKI |
发明人 |
OISHI SHINJI;MATSUNAGA HIROSHI;WATANABE YASUYUKI;HIRAOKA TSUNEAKI |
分类号 |
F16C19/44;F16C33/62;B60T13/16;C21D9/40;F16C19/46;F16C21/00;F16C33/64;F16C35/12 |
主分类号 |
F16C19/44 |
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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