Invention Grant
- Patent Title: Grease composition for constant velocity joint and constant velocity joint
- Patent Title (中): 恒速接头和等速接头的润滑脂组成
-
Application No.: US12124916Application Date: 2008-05-21
-
Publication No.: US08377858B2Publication Date: 2013-02-19
- Inventor: Mitsuhiro Kakizaki , Shinya Kondo , Shinichi Takabe , Takaaki Shibata
- Applicant: Mitsuhiro Kakizaki , Shinya Kondo , Shinichi Takabe , Takaaki Shibata
- Applicant Address: JP Kanagawa JP Osaka
- Assignee: Kyodo Yushi Co., Ltd.,NTN Corporation
- Current Assignee: Kyodo Yushi Co., Ltd.,NTN Corporation
- Current Assignee Address: JP Kanagawa JP Osaka
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2005-337550 20051122
- Main IPC: C10M115/08
- IPC: C10M115/08 ; C10M129/95 ; C10M169/04
Abstract:
The invention provides a grease composition for constant velocity joint containing the components (a) to (g) below and a constant velocity joint containing said composition.(a) a diurea thickening agent having the following formula (1): R1NH—CO—NH—C6H4-p-CH2—C6H4-p-NH—CO—NHR2 (1) wherein R1 and R2 may be the same or different and represent C8-C20 alkyl groups, (b) an ester synthetic oil, (c) a mineral oil and/or a synthetic hydrocarbon oil, (d) a molybdenum dialkyldithiocarbamate, (e) molybdenum disulfide, (f) a polytetrafluoroethylene, and (g) a zinc dithiophosphate compound. The grease composition of the invention reduces variations in rotational resistance of the constant velocity joint at a low temperature.
Public/Granted literature
- US20080234150A1 GREASE COMPOSITION FOR CONSTANT VELOCITY JOINT AND CONSTANT VELOCITY JOINT Public/Granted day:2008-09-25
Information query
