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. 14, 2015
Filed:
Feb. 20, 2014
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Tadahiko Karaki, Kitasaku-gun, JP;
Kentaro Ishikawa, Kitasaku-gun, JP;
Motoharu Akiyama, Kitasaku-gun, JP;
Kunihiro Matsumoto, Kitasaku-gun, JP;
MINEBEA CO., LTD., Nagano, JP;
Abstract
A sliding bearing having a metallic outer ring and a self-lubricating liner formed on the inner circumferential surface of the outer ring. The self-lubricating liner has a self-lubricating resin composition consisting of a mixture of 60 to 80% by weight of polyetherketone-based resin, 10 to 30% by weight of polytetrafluoroethylene, 5 to 15% by weight of carbon fiber, and not more than 15% by weight of aramid fiber, a total amount of the carbon fiber and the aramid fiber being 10 to 25% by weight. The inner circumferential surface of the outer ring has a surface roughness in terms of center line average roughness not less than R4.0 μm and a surface roughness in terms of maximum height not less than R30.0 μm; and the outer ring and the self-lubricating liner are unified. A method of producing the bearing is also provided.