Tapered roller bearing, tapered roller bearing apparatus,...

Details Tapered roller bearing, tapered roller bearing apparatus,... Tapered roller bearing, tapered roller bearing apparatus,...

2011-01-18

2011-01-18

Joyce, William C (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S571000, C074S424000

Reexamination Certificate

active

07871201

ABSTRACT:
In a tapered roller bearing, LWR/DW is in the range of 1.1 to 1.7 where LWR represents a roller effective length of tapered rollers and DW represents a roller mean diameter of tapered rollers. RCO/LRO is 30 to 150, and RCI/LRI is 50 to 260 where RCO represents a crowning radius of an outer ring, LRO represents a raceway length of the outer ring, RCI represents a crowning radius of an inner ring and LRI represents a raceway length of the inner ring. The following expressions are satisfied: 20°≦α≦30°, and α−0.87γ−0.334≦BK≦α−0.87γ−0.167, where α represents a raceway angle of the outer ring, γ represents a roller angle of the tapered rollers, and BK represents a rib angle of a large rib portion of the inner ring.

REFERENCES:
patent: 5007747 (1991-04-01), Takeuchi et al.
patent: 6086261 (2000-07-01), Nakagawa et al.
patent: 6390685 (2002-05-01), Shimomura et al.
patent: 2002/0044707 (2002-04-01), Hanai et al.
patent: 0 756 095 (1997-01-01), None
patent: 1 158 192 (2001-11-01), None
patent: 3-113 (1991-01-01), None
patent: 3-12015 (1991-02-01), None
patent: 4-95318 (1992-08-01), None
patent: 8-177851 (1996-07-01), None
patent: 10-196660 (1998-07-01), None
patent: 2000-193069 (2000-07-01), None
patent: 2000-289403 (2000-10-01), None
patent: 2001-65574 (2001-03-01), None
patent: 2002-181053 (2002-06-01), None
patent: 2002-221223 (2002-08-01), None
patent: 2003-130059 (2003-05-01), None
patent: 2003-343552 (2003-12-01), None
patent: 2005-172113 (2005-06-01), None
patent: 2005/080813 (2005-02-01), None
patent: WO 2005/080813 (2005-02-01), None
patent: WO 2005/100809 (2005-10-01), None
Notice of Reason for Refusal dated Dec. 8, 2009, with English translation.

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