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:
Jul. 22, 2008
Filed:
Jul. 28, 2004
Kenichi Iso, Kanagawa, JP;
Kenichi Iso, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A rolling bearing holding two or more rolling elementsbetween inner ringand outer ringin such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.