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公开(公告)号:EP3211063A1
公开(公告)日:2017-08-30
申请号:EP15852936.2
申请日:2015-10-22
Applicant: Kyodo Yushi Co., Ltd.
Inventor: YAMAMOTO Masamichi , TANAKA Noriko , MATSUBARA Kenichiro
IPC: C10M169/06 , C10M115/08 , C10M133/44 , C10M135/36 , C10N20/00 , C10N20/02 , C10N30/00 , C10N30/08 , C10N40/02 , C10N50/10 , F16C33/66
CPC classification number: C10M169/00 , C10M101/02 , C10M107/02 , C10M111/04 , C10M115/08 , C10M133/12 , C10M133/44 , C10M135/20 , C10M135/36 , C10M141/08 , C10M169/06 , C10M2203/003 , C10M2203/1025 , C10M2205/0206 , C10M2205/0285 , C10M2207/2835 , C10M2215/064 , C10M2215/1026 , C10M2215/223 , C10M2215/224 , C10M2215/26 , C10M2215/28 , C10M2215/30 , C10M2219/09 , C10M2219/106 , C10N2220/022 , C10N2230/10 , C10N2230/36 , C10N2230/70 , C10N2230/76 , C10N2240/02 , C10N2250/10 , F16C33/6633
Abstract: The invention provides a grease composition for rolling bearings that can exhibit improved bearing life that can secure the low noise performance under high temperature conditions, and a rolling bearing where the above-mentioned grease composition is enclosed. The grease composition for rolling bearings includes a base oil, a urea thickener and a metal deactivator. The base oil has an aniline point of 110° C or more. The urea thickener is at least one kind of diurea compound selected from the group consisting of diurea compounds represented by formula (1): R 1 - NHCONH - R 2 - NHCONH - R 3 (wherein R 1 and R 3 , which may be the same or different from each other represent a C 6-30 alkyl group, a C 5-8 cycloalkyl group or a C 6-10 aryl group, and R 2 represents a bivalent aromatic hydrocarbon group having 6 to 15 carbon atoms.)
Abstract translation: 本发明提供一种滚动轴承用润滑脂组合物,该润滑脂组合物能够在高温条件下显示出能够确保低噪音性能的轴承寿命的提高,并且提供一种将上述润滑脂组合物封入的滚动轴承。 用于滚动轴承的润滑脂组合物包括基础油,尿素增稠剂和金属钝化剂。 基础油的苯胺点为110°C或更高。 脲增稠剂是至少一种选自式(1)代表的二脲化合物的二脲化合物:R1-NHCONH-R2-NHCONH-R3(其中R1和R3可以相同或不同,各自为 其他表示碳原子数6〜30的烷基,碳原子数5〜8的环烷基或碳原子数6〜10的芳基,R 2表示碳原子数6〜15的2价的芳香族烃基。)
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公开(公告)号:EP3211063B1
公开(公告)日:2019-08-21
申请号:EP15852936.2
申请日:2015-10-22
Applicant: Kyodo Yushi Co., Ltd.
Inventor: YAMAMOTO Masamichi , TANAKA Noriko , MATSUBARA Kenichiro
IPC: C10M169/06 , C10M169/00 , C10N20/00 , C10N20/02 , C10N30/00 , C10N30/08 , C10N40/02 , C10N50/10 , F16C33/66
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