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:
Apr. 01, 2003
Filed:
Sep. 05, 2001
Applicant:
Inventor:
Umemitsu Kobayashi, Kuwana, JP;
Assignee:
NTN Corporation, Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 1/906 ;
U.S. Cl.
CPC ...
F16C 1/906 ;
Abstract
The arrangement is such that the ratio of the diameter of balls in the ultrathin-walled ball bearing to the pitch circle diameter PCD is not more than 0.03, and that the balls are arranged in a single row and in two-point contact with the raceway surfaces and of the outer and inner members and The inner member is composed of first and second raceway rim members and opposed to each other with an axial clearance S defined therebetween, and the internal clearances of the bearing are made negative by adjusting the width of the axial clearance S.