公开(公告)号：US20170166829A1

公开(公告)日：2017-06-15

申请号：US15444091

申请日：2017-02-27

Applicant: NTN CORPORATION

Inventor： Motohiro ITO ,  Yoji Sato ,  Hidenobu Mikami

IPC: C10M137/04 ,  C10M137/02 ,  F16C33/66 ,  C10M101/02 ,  C10M105/04 ,  C10M169/06 ,  C10M115/08

CPC classification number: C10M137/04 ,  C10M101/02 ,  C10M105/04 ,  C10M115/08 ,  C10M137/02 ,  C10M169/00 ,  C10M169/06 ,  C10M2203/003 ,  C10M2203/024 ,  C10M2203/1006 ,  C10M2205/0285 ,  C10M2207/1236 ,  C10M2207/1256 ,  C10M2207/1285 ,  C10M2207/2805 ,  C10M2215/1026 ,  C10M2223/04 ,  C10M2223/049 ,  C10N2210/01 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/76 ,  C10N2240/02 ,  C10N2240/046 ,  C10N2250/10 ,  F16C19/06 ,  F16C19/186 ,  F16C33/6607 ,  F16C33/6633 ,  F16C2326/02 ,  F16C2360/31

Abstract: A grease composition containing base oil, a thickener, and an additive, wherein said additive contains at least one kind selected from among a phosphite ester shown by a chemical formula (1) or a phosphite ester shown by a chemical formula (2); a content of said phosphite ester is 0.5 to 4 parts by weight for 100 parts by weight which is a total of an amount of said base oil and that of said thickener; and said additive contains neither phosphite esters other than said phosphite ester shown by said formula (1) or by said formula (2) nor phosphate esters having organic groups whose carbon number is not less than three:

公开(公告)号：US20160160923A1

公开(公告)日：2016-06-09

申请号：US14905948

申请日：2014-07-18

Applicant: NTN CORPORATION

Inventor： Takayuki KAWAMURA ,  Motohiro ITO

IPC: F16C33/66 ,  C10M105/04 ,  C10M115/08 ,  C10M105/18 ,  C10M133/08 ,  C10M169/04 ,  C10M105/32

CPC classification number: 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

Abstract: 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.

Abstract translation: 提供即使在恶劣的环境下也能够防止由于氢脆而在铁基金属构件的表面上剥离的滚动轴承。 滚动轴承1具有由铁基金属形成的多个轴承元件和润滑各轴承元件的金属接触表面的润滑剂组合物7，润滑剂组合物7是含有基础油和链烷醇胺并且不含碱的润滑脂 无机酸的金属盐和碱土金属盐，基油是选自烷基二苯基醚油，聚-α-烯烃油和酯油中的至少一种油，链烷醇胺的含量相对于 至100重量份的基础油和增稠剂的总量。

公开(公告)号：US20180230396A1

公开(公告)日：2018-08-16

申请号：US15751860

申请日：2016-07-29

Applicant: NTN CORPORATION

Inventor： Motohiro ITO ,  Ryouta KONDOU ,  Takayuki KAWAMURA

IPC: C10M141/06 ,  C10M105/18 ,  C10M107/02 ,  C10M111/04 ,  C10M133/40 ,  C10M133/08 ,  C10M125/24 ,  C10M129/42 ,  C10M133/12 ,  C10M115/08 ,  C10M169/00 ,  F16C33/66

CPC classification number: C10M141/06 ,  C10M105/18 ,  C10M107/02 ,  C10M111/04 ,  C10M115/08 ,  C10M125/24 ,  C10M129/42 ,  C10M133/02 ,  C10M133/08 ,  C10M133/12 ,  C10M133/40 ,  C10M141/10 ,  C10M169/00 ,  C10M169/04 ,  C10M2205/0206 ,  C10M2205/0285 ,  C10M2207/0406 ,  C10M2207/127 ,  C10M2215/042 ,  C10M2215/064 ,  C10M2215/1026 ,  C10M2215/221 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2223/045 ,  C10N2230/06 ,  C10N2230/08 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2240/02 ,  C10N2250/10 ,  F16C33/66 ,  F16C33/6633 ,  C10N2210/01 ,  C10N2210/02

Abstract: 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.

公开(公告)号：US20150299611A1

公开(公告)日：2015-10-22

申请号：US14696471

申请日：2015-04-26

Applicant: NTN Corporation

Inventor： Motohiro ITO ,  Yoji Sato ,  Hidenobu Mikami

IPC: C10M169/06 ,  F16C33/66

CPC classification number: C10M137/04 ,  C10M101/02 ,  C10M105/04 ,  C10M115/08 ,  C10M137/02 ,  C10M169/00 ,  C10M169/06 ,  C10M2203/003 ,  C10M2203/024 ,  C10M2203/1006 ,  C10M2205/0285 ,  C10M2207/1236 ,  C10M2207/1256 ,  C10M2207/1285 ,  C10M2207/2805 ,  C10M2215/1026 ,  C10M2223/04 ,  C10M2223/049 ,  C10N2210/01 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/76 ,  C10N2240/02 ,  C10N2240/046 ,  C10N2250/10 ,  F16C19/06 ,  F16C19/186 ,  F16C33/6607 ,  F16C33/6633 ,  F16C2326/02 ,  F16C2360/31

Abstract: A grease composition containing base oil, a thickener, and an additive, wherein said additive contains at least one kind selected from among a phosphite ester shown by a chemical formula (1) or a phosphite ester shown by a chemical formula (2); a content of said phosphite ester is 0.5 to 4 parts by weight for 100 parts by weight which is a total of an amount of said base oil and that of said thickener; and said additive contains neither phosphite esters other than said phosphite ester shown by said formula (1) or by said formula (2) nor phosphate esters having organic groups whose carbon number is not less than three:

Abstract translation: 一种含有基础油，增稠剂和添加剂的润滑脂组合物，其中所述添加剂含有选自由化学式（1）表示的亚磷酸酯或化学式（2）所示的亚磷酸酯中的至少一种; 所述亚磷酸酯的含量相对于100重量份为0.5〜4重量份，其为所述基础油和所述增稠剂的总量的总量; 并且所述添加剂既不含所述式（1）所示的亚磷酸酯以外的亚磷酸酯或所述式（2），也不含有碳数不小于3的有机基团的磷酸酯：