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公开(公告)号：EP3272843A4
公开(公告)日：2018-08-01
申请号：EP16764799
申请日：2016-03-09
发明人： INOUE MASAHARU , WATANABE KAZUHIRO , IZUTSU TOMOYOSHI , KAWAMURA TAKAYUKI , AMARI HIROYUKI , HASEGAWA MINORU , NAKANO KOUHEI
IPC分类号： C10M169/02 , C10M105/04 , C10M105/36 , C10M107/02 , C10M115/08 , C10M125/10 , C10M129/58 , C10M137/10 , C10M169/06 , C10N10/02 , C10N10/04 , C10N10/12 , C10N20/00 , C10N20/02 , C10N30/00 , C10N30/02 , C10N30/08 , C10N30/12 , C10N40/02 , C10N50/10
CPC分类号： C10M169/00 , C10M101/00 , C10M105/04 , C10M105/36 , C10M107/02 , C10M111/02 , C10M115/08 , C10M125/10 , C10M129/58 , C10M137/10 , C10M139/00 , C10M141/12 , C10M169/02 , C10M169/06 , C10M2201/062 , C10M2203/003 , C10M2205/0285 , C10M2207/026 , C10M2207/16 , C10M2207/28 , C10M2207/2835 , C10M2207/2855 , C10M2215/064 , C10M2215/1023 , C10M2215/28 , C10M2219/044 , C10M2223/045 , C10M2227/06 , C10N2210/01 , C10N2210/06 , C10N2220/022 , C10N2220/028 , C10N2230/00 , C10N2230/02 , C10N2230/06 , C10N2230/08 , C10N2230/12 , C10N2240/02 , C10N2250/10 , C10N2210/02
摘要： It is an object of the present invention to provide a grease composition, for an outer ring rotation type rolling bearing, which is capable of satisfying all of high-temperature durability, low-temperature property, peeling resistance, and rust-preventive property. A grease composition (7) to be enclosed in the outer rig rotation type rolling bearing for use in automotive electric auxiliary machines contains base oil, a thickener, a peeling-resistant additive, a wear-resistant additive, and a rust-preventive agent. The base oil is mixed oil of trimellitic acid ester oil and synthetic hydrocarbon oil mixed therewith in a mass ratio of (70:30) to (90:10). The thickener consists of a diurea compound shown by a formula (1). €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 -NHCONH-R 2 -NHCONH-R 1 €ƒ€ƒ€ƒ€ƒ€ƒ(1) wherein a reference symbol R 2 denotes a divalent aromatic hydrocarbon group having a carbon number of 6 to 15, and a reference symbol R 1 denotes a cyclohexyl group.
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