公开(公告)号：US20240263099A1

公开(公告)日：2024-08-08

申请号：US18689492

申请日：2022-09-13

申请人： KYODO YUSHI CO., LTD. ,  NSK Ltd.

发明人： Kazuki ISA ,  Yuki TAKEYAMA ,  Masatoshi IJIMA ,  Suguru SUGAWARA ,  Hiroaki ISHIKAWA

IPC分类号： C10M171/02 ,  C10M115/08 ,  C10M129/10 ,  C10M129/26 ,  C10M137/10 ,  C10M169/06 ,  F16C33/66

CPC分类号： C10M171/02 ,  C10M115/08 ,  C10M129/10 ,  C10M129/26 ,  C10M137/105 ,  C10M169/06 ,  F16C33/6633 ,  C10M2207/125 ,  C10M2215/1026 ,  F16C2210/04 ,  F16C2326/02

摘要： A grease composition for vehicular hub unit bearings is provided, in which a base oil is a synthetic hydrocarbon oil having a kinematic viscosity at 40° C. of 25-50 mm2/s, a thickener is an alicyclic aliphatic diurea compound, based on a total mass of the composition, 0.1-5% by mass of a carboxylic acid-based corrosion inhibitor, 0.1-5% by mass of a carboxylic acid salt-based corrosion inhibitor, and 0.1-3% by mass of an amine salt of a fatty acid are contained, and a worked penetration is 220-270.

公开(公告)号：US20190177645A1

公开(公告)日：2019-06-13

申请号：US16321976

申请日：2017-08-04

申请人： KYODO YUSHI CO., LTD.

发明人： Iwaki HIROOKA ,  Yuta SATO ,  Masatoshi IJIMA

IPC分类号： C10M169/00 ,  C10M101/02 ,  C10M119/24 ,  C10M133/12 ,  C10M149/10 ,  C10M133/40 ,  C10M129/46 ,  C10M161/00 ,  C10M141/06

摘要： The present invention provides a grease composition comprising (a) a base oil, (b) a thickener comprising a urea compound, (c) an amine antioxidant at 0.5 to 5% by mass based on a total mass of the composition, and (d) a quinoline antioxidant at 0.5 to 5% by mass based on the total mass of the composition.