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:
Jun. 26, 2007
Filed:
May. 31, 2002
Yasunobu Fujita, Kanagawa, JP;
Masao Yamamoto, Kanagawa, JP;
Kouichi Hachiya, Kanagawa, JP;
Atsushi Yokouchi, Kanagawa, JP;
Toshikazu Yabe, Kanagawa, JP;
Emiko Shiraishi, Kanagawa, JP;
Michiharu Naka, Kanagawa, JP;
Yasunobu Fujita, Kanagawa, JP;
Masao Yamamoto, Kanagawa, JP;
Kouichi Hachiya, Kanagawa, JP;
Atsushi Yokouchi, Kanagawa, JP;
Toshikazu Yabe, Kanagawa, JP;
Emiko Shiraishi, Kanagawa, JP;
Michiharu Naka, Kanagawa, JP;
NSK, Ltd., Tokyo, JP;
Abstract
A rolling bearing includes a plurality of rolling elements movably retained at almost the same interval between an inner ring and an outer ring with a cage made of synthetic resin provided interposed therebetween. The rolling bearing further includes, an oil film made of a lubricant, and a grease containing a synthetic oil as a base oil enclosed therein. The lubricant contains at least one additive selected from the group consisting of organic aliphatic acid, organic aliphatic acid derivative and organic phosphorus compound incorporated in a synthetic oil in a proportion of from 0.5 to 10% by weight formed on the surface of the raceways of the inner and outer rings and the surface of the rolling elements, and a grease containing a synthetic oil as a base oil enclosed therein.