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公开(公告)号:US10597598B2
公开(公告)日:2020-03-24
申请号:US15751860
申请日:2016-07-29
申请人: NTN CORPORATION
发明人: Motohiro Ito , Ryouta Kondou , Takayuki Kawamura
IPC分类号: C10M141/06 , C10M133/02 , F16C33/66 , C10M169/04 , C10M141/10 , C10M105/18 , C10M107/02 , C10M115/08 , C10M129/42 , C10M133/08 , C10M133/12 , C10M111/04 , C10M125/24 , C10M133/40 , C10M169/00
摘要: Provided is a grease composition which can be used as a lubricant for roller bearings, exhibits excellent high temperature durability and rust preventive property, and can prevent premature flaking on the rolling surface due to hydrogen embrittlement. A roller bearing 1 is obtained by sealing a grease composition 7 in the periphery of a rolling element 4, this grease composition 7 is composed of a base oil excluding an ester-based synthetic oil, a thickener, and an additive, the additive contains (a) an alkanolamine and (b) 2,2,4-trimethyl-1,2-dihydroquinoline or a polymer thereof but does not contain an organic sulfonate, and (a) and (b) are contained at from 0.1 to 10 parts by weight with respect to 100 parts by weight of a total amount of the base oil and the thickener, respectively.
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公开(公告)号:US09765821B2
公开(公告)日:2017-09-19
申请号:US14905948
申请日:2014-07-18
申请人: NTN CORPORATION
发明人: Takayuki Kawamura , Motohiro Ito
IPC分类号: C10M169/04 , C10M173/00 , C10M115/08 , F16C33/76 , F16C33/66 , C10M105/04 , C10M105/18 , C10M105/32 , C10M133/08 , F16C19/06
CPC分类号: F16C33/6633 , C10M105/04 , C10M105/18 , C10M105/32 , C10M115/08 , C10M133/08 , C10M169/04 , C10M2203/1006 , C10M2205/0285 , C10M2207/0406 , C10M2207/2805 , C10M2215/042 , C10M2215/064 , C10M2215/1026 , C10M2223/045 , C10N2220/022 , C10N2230/06 , C10N2230/40 , C10N2240/02 , C10N2250/10 , F16C19/06 , F16C2360/46 , F16C2361/61 , F16C2361/63 , F16C2380/26 , C10N2210/02
摘要: A rolling bearing that can prevent peeling on a surface of an iron-based metal member by hydrogen brittleness even under a severe environment is provided. The rolling bearing 1 has plural bearing elements formed of an iron-based metal, and a lubricant composition 7 that lubricates metal contact surfaces of the respective bearing elements, the lubricant composition 7 is a grease containing a base oil and alkanolamine and being free of alkali metal salts and alkaline earth metal salts of inorganic acids, the base oil is at least one oil selected from alkyl diphenyl ether oils, poly-α-olefin oils and ester oils, and the alkanolamine is contained by 0.1 to 10 parts by weight with respect to 100 parts by weight of the total amount of the base oil and a thickener.
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