Invention Grant
- Patent Title: Roller bearing for automobiles
- Patent Title (中): 汽车滚子轴承
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Application No.: US11628750Application Date: 2005-06-16
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Publication No.: US09074621B2Publication Date: 2015-07-07
- Inventor: Takashi Tsujimoto , Rino Fukami
- Applicant: Takashi Tsujimoto , Rino Fukami
- Applicant Address: JP Osaka
- Assignee: NTN CORPORATION
- Current Assignee: NTN CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2004-198705 20040705; JP2004-198707 20040705
- International Application: PCT/JP2005/011027 WO 20050616
- International Announcement: WO2006/003792 WO 20060112
- Main IPC: F16C33/34
- IPC: F16C33/34 ; F16C19/00 ; F16C19/26
Abstract:
The surfaces (2a) of at least rolling elements (2) of a roller bearing for transmissions or differentials of automobiles are provided with innumerable minute, recess-shaped cavities at random and the surface roughness parameter Ryni of the surfaces provided with the cavities is in the range of 0.4-1.0 μm and the Sk value is not more than −1.6.
Public/Granted literature
- US20070286543A1 Roller Bearing for Automobiles Public/Granted day:2007-12-13
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