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:
Dec. 25, 2001
Filed:
Sep. 21, 1999
Katsuhisa Tonooka, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A rolling bearing manufacturing apparatus is used to work the two races of a rolling bearing and then assemble the thus worked outer and inner races together with a plurality of rolling elements into the rolling bearing. The present apparatus comprises an outer race groove working machine,for working the outer race of the rolling bearing to thereby form a raceway groove therein, a gauge part,for measuring the raceway diameter of the raceway groove of the outer race after the present raceway groove is worked by the outer race groove working machine,, and an inner race grinding machine,which, in accordance with the thus measured raceway diameter, works the raceway groove of the inner race in such a manner that an internal clearance can provide a predetermined constant amount.