The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2002
Filed:
Oct. 16, 2001
Applicant:
Inventors:
Toru Takamizawa, Kanagawa, JP;
Mamoru Aoki, Kanagawa, JP;
Takayuki Miyagawa, Kanagawa, JP;
Hiroshi Ishiwada, Kanagawa, JP;
Hirotoshi Aramaki, Kanagawa, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C 3/358 ;
U.S. Cl.
CPC ...
F16C 3/358 ;
Abstract
In the ball bearing, the ratio of the radius of curvature of an inner race raceway to the outside diameter of balls is set in the range of 0.51 to 0.54. Also, the ratio of the radius of curvature of an outer race raceway to the outside diameter of balls is set in the range of 0.54 to 0.56. Further, an interior geometric clearance c is set at 13 &mgr;m or less. Thanks to these specifications, the balls can be prevented from running up onto the edge of the outer race raceway