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    • 74. 发明公开
    • GREASE COMPOSITION
    • SCHMIERFETTZUSAMMENSETZUNG
    • EP2687584A1
    • 2014-01-22
    • EP12757356.6
    • 2012-03-19
    • Kyodo Yushi Co., Ltd.
    • IMAI YutakaAIDA Ryo
    • C10M169/00F16C33/66C10M105/18C10M115/08C10M129/10C10M133/12C10M135/10C10M135/18C10M137/10C10N10/04C10N20/00C10N30/06C10N30/10C10N30/12C10N40/02C10N50/10
    • The invention provides a grease composition for rolling bearings of automotive electrical equipment or automotive auxiliaries, where a base oil contains as an essential component an alkyldiphenyl ether oil; a thickener is a diurea compound represented by the following formula (1):

      (wherein R 2 is a diphenylmethane group; and R 1 and R 3 , which may be the same or different represent an aromatic hydrocarbon group having 6 to 12 carbon atoms); and an anti-flaking additive that contains an organic sulfonate rust inhibitor and a load carrying additive. The grease composition of the invention can extend the bearing lubrication life even at elevated temperatures and exhibit excellent anti-flaking properties, so that the grease composition can be enclosed in the rolling bearings of automotive electrical equipment or automotive auxiliaries.
    • 本发明提供一种用于汽车电气设备或汽车辅助设备的滚动轴承的润滑脂组合物,其中基础油包含烷基二苯醚油作为必要组分; 增稠剂是由下式(1)表示的二脲化合物:其中,R 2为二苯基甲烷基,R 1和R 3可以相同或不同,表示碳原子数为6〜12的芳香族烃基) ; 以及含有有机磺酸盐防锈剂和承载添加剂的抗剥落添加剂。 本发明的润滑脂组合物即使在升高的温度下也能延长轴承的润滑寿命,并具有优异的抗剥落性能,因此润滑脂组合物可以封闭在汽车电气设备或汽车辅助设备的滚动轴承中。