发明名称 |
Steel ball rolling configuration and constant velocity universal joint |
摘要 |
A steel ball rolling configuration and a constant velocity universal joint have a superior oil retention effect between a surface of a steel ball and a partner rolling surface, and can form a thick oil film, improve lubrication, and extend life of the steel ball. The constant velocity universal joint includes a rolling surface and a steel ball that is lubricated by grease and rolls over the rolling surface. A surface roughness of the steel ball is roughened to become more similar to a surface roughness of a partner rolling surface. Numerous miniscule recesses roughly tens of micrometers in size are randomly disposed on the surface of the steel ball.
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申请公布号 |
US8298091(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20070310166 |
申请日期 |
2007.08.20 |
申请人 |
USHIODA YOSHIMASA;OOE HIROKI;MURAMATSU KAZUHIRO;NTN CORPORATION |
发明人 |
USHIODA YOSHIMASA;OOE HIROKI;MURAMATSU KAZUHIRO |
分类号 |
F16C1/24;F16C33/32;F16D3/2245 |
主分类号 |
F16C1/24 |
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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