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:
Oct. 30, 2007
Filed:
Feb. 02, 2002
Umemitsu Kobayashi, Mie, JP;
Keiichi Ueda, Mie, JP;
Umemitsu Kobayashi, Mie, JP;
Keiichi Ueda, Mie, JP;
NTN Corporation, Osaka, JP;
Abstract
A rolling bearing is constructed so that, even though adapted for seals, strength of the bearing rings and reduction of the front width will not occur. Also dimensions equivalent to a non-sealed type bearing can be achieved. Rolling elements are disposed between an inner ring and an outer ring with seals provided. One seal is fitted in a pressed state on a peripheral surface portion of a cylindrical surface forming a counterbore of the outer ring. By pressing, the seal is mounted without forming a slot. The other seal is fitted in a slot. The inner ring and the outer ring, or rolling elements of a bearing comprising the outer ring, inner ring, rolling elements and a retainer are subjected to carbonitriding and a grease using a urea compound as a thickening agent is sealed in the bearing.