Invention Grant
- Patent Title: Grease composition and rolling bearing
- Patent Title (中): 润滑脂组成和滚动轴承
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Application No.: US13823049Application Date: 2011-09-09
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Publication No.: US09046132B2Publication Date: 2015-06-02
- Inventor: Motohiro Ito , Yoji Sato , Hidenobu Mikami
- Applicant: Motohiro Ito , Yoji Sato , Hidenobu Mikami
- Applicant Address: JP Osaka
- Assignee: NTN CORPORATION
- Current Assignee: NTN CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Hedman & Costigan, P.C.
- Agent James V. Costigan; Kathleen A. Costigan
- Priority: JP2010-204738 20100913; JP2011-094442 20110420; JP2011-157327 20110718
- International Application: PCT/JP2011/070550 WO 20110909
- International Announcement: WO2012/036076 WO 20120322
- Main IPC: F16C19/00
- IPC: F16C19/00 ; C10M169/06 ; C10M137/04 ; F16C33/66 ; C10M169/00 ; C10M137/02
Abstract:
The present invention provides a grease composition having an excellent fretting wear resistance in a wide temperature region from low to high temperatures and particularly even at low temperatures and a rolling bearing in which the grease composition is packed. A grease composition (7) is packed inside a grease-packed bearing (1). The grease composition (7) contains base oil, a thickener, and an additive. The additive contains at least, one kind selected from among a phosphite ester of formula (1) or a phosphite ester of formula (2):
Public/Granted literature
- US20130170777A1 GREASE COMPOSITION AND ROLLING BEARING Public/Granted day:2013-07-04
Information query
