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：US20230272299A1

公开(公告)日：2023-08-31

申请号：US18014651

申请日：2021-07-05

申请人： JTEKT CORPORATION ,  KYODO YUSHI CO., LTD.

发明人： Kanako NIIYA ,  Kazunori MIYAKE ,  Masayuki MURAKAMI ,  Shota AKIMOTO ,  Takahiro MAEDA ,  Kaname NISHI ,  Michitaka YOSHIHARA ,  Kazuki ISA ,  Koki ANDO

IPC分类号： C10M137/10 ,  C10M125/22 ,  C10M129/26 ,  C10M169/06 ,  C10M133/12

CPC分类号： C10M137/10 ,  C10M125/22 ,  C10M129/26 ,  C10M169/06 ,  C10M133/12 ,  C10N2040/02

摘要： The present invention relates to a grease composition including: a base oil; a thickener; a rust inhibitor; and an extreme pressure agent, in which the rust inhibitor includes, with respect to a total mass of the grease composition: 0.10 mass % to 10.00 mass % of a calcium sulfonate; 0.20 mass % to 10.00 mass % of a zinc sulfonate; and 0.10 mass % to 10.00 mass % of a zinc carboxylate, and the extreme pressure agent includes, with respect to the total mass of the grease composition, 2.00 mass % to 14.00 mass % of a zinc dialkyldithiophosphate.

公开(公告)号：US20220017836A1

公开(公告)日：2022-01-20

申请号：US17295672

申请日：2019-11-21

申请人： KYODO YUSHI CO., LTD.

发明人： Kazuki ISA ,  Yuki TAKEYAMA ,  Yuta SATO

IPC分类号： C10M169/00 ,  C10M115/08 ,  C10M117/08 ,  C10M135/10 ,  C10M125/10 ,  C10M133/12 ,  C10M141/08 ,  F16C19/36 ,  F16C33/66

摘要： A grease composition for a tapered roller bearing comprising: (a) at least one compound selected from the group consisting of metallic salts each having a metallic group having a valence of 2 as an additive; (b) a base oil containing a synthetic oil having a viscosity index of 110 or more and a pour point of −35° C. or less in an amount of 40% or more of the entire base oil; (c) a thickener; and (d) an antioxidant.