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:
Nov. 14, 2006
Filed:
Nov. 01, 2001
Youichiro Sugimori, Kanagawa, JP;
Atsushi Yokouchi, Kanagawa, JP;
Hisao Sumiya, Kanagawa, JP;
Michiharu Naka, Kanagawa, JP;
Youichiro Sugimori, Kanagawa, JP;
Atsushi Yokouchi, Kanagawa, JP;
Hisao Sumiya, Kanagawa, JP;
Michiharu Naka, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A grease composition is disclosed, wherein a metallic soap-base thickener containing a long-fiber material having a major axis part length of at least 3 μm is blended with a base oil obtained by mixing a lubricating oil having a polar group within the molecule structure and a non-polar lubricating oil, which can improve the initial sound (cage sound) of bearing at the starting of operation in a low-temperature environment and is effective on the reduction of fretting damage (abrasion) or torque, and also a rolling bearing and a linear acting apparatus each obtained by packing the grease composition are disclosed, which exhibit excellent low-temperature acoustic property and are reduced in the fretting damage (abrasion) or torque.