Bearings – Rotary bearing – Antifriction bearing
Reexamination Certificate
2004-11-12
2008-10-14
Charles, Marcus (Department: 3682)
Bearings
Rotary bearing
Antifriction bearing
C384S516000, C384S569000, C384S625000
Reexamination Certificate
active
07435007
ABSTRACT:
A roughness of an outer ring raceway surface14formed on an inner peripheral surface of an outer ring13is made larger than a roughness of inner ring raceway surfaces12a,12bof an inner ring11. Also, an average roughness Ra of the outer ring raceway surface14is set within 0.1 μm≦Ra≦0.5 μm in an axial direction and a circumferential direction in ranges of b1/(B/2)≦0.9, b2/ (B/2)≦0.9 and in a measured length of 0.1 mm to 1.0 mm where B is a width of the outer ring13and b1, b2are a distance from both end surfaces of the outer ring13in the axial direction respectively. A roughness parameter S of the outer ring raceway surface is set within 0<S≦20 μm.
REFERENCES:
patent: 3737204 (1973-06-01), Burkhardt
patent: 3990753 (1976-11-01), Kellstrom et al.
patent: 4916751 (1990-04-01), Sumita et al.
patent: 5338377 (1994-08-01), Mitamura et al.
patent: 6547443 (2003-04-01), Hanai et al.
patent: 6893372 (2005-05-01), Matsuyama et al.
patent: 2003/0198420 (2003-10-01), Matsuyama et al.
patent: 1344953 (2003-09-01), None
patent: 57-61933 (1982-12-01), None
patent: 1-220720 (1989-09-01), None
patent: 02186120 (1990-07-01), None
patent: 4-39414 (1992-02-01), None
patent: 2000-179559 (2000-06-01), None
patent: 2002-339989 (2002-11-01), None
patent: 2005-30425 (2005-02-01), None
Ueda Kouji
Ueda Tohru
Charles Marcus
NSK Ltd.
Sughrue & Mion, PLLC
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