Title:
GREASE COMPOSITION AND ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2022/009841
Kind Code:
A1
Abstract:
The present invention relates to a grease composition containing a base oil, a thickener, a corrosion inhibitor, and an extreme pressure agent, wherein: the corrosion inhibitor includes 0.10-10.00 mass% of calcium sulfonate, 0.20-10.00 mass% of zinc sulfonate, and 0.10-10.00 mass% of zinc carboxylate relative to the total mass of the grease composition; and the extreme pressure agent includes 2.00-14.00 mass% of zinc dialkyl dithiophosphates relative to the total mass of the grease composition.
Inventors:
NIIYA KANAKO (JP)
MIYAKE KAZUNORI (JP)
MURAKAMI MASAYUKI (JP)
AKIMOTO SHOTA (JP)
MAEDA TAKAHIRO (JP)
NISHI KANAME (JP)
YOSHIHARA MICHITAKA (JP)
ISA KAZUKI (JP)
ANDO KOKI (JP)
MIYAKE KAZUNORI (JP)
MURAKAMI MASAYUKI (JP)
AKIMOTO SHOTA (JP)
MAEDA TAKAHIRO (JP)
NISHI KANAME (JP)
YOSHIHARA MICHITAKA (JP)
ISA KAZUKI (JP)
ANDO KOKI (JP)
Application Number:
PCT/JP2021/025324
Publication Date:
January 13, 2022
Filing Date:
July 05, 2021
Export Citation:
Assignee:
JTEKT CORP (JP)
KYODO YUSHI (JP)
KYODO YUSHI (JP)
International Classes:
C10M141/10; C10M129/26; C10M133/12; C10M135/10; C10M137/10; F16C33/66; C10N10/04; C10N30/00; C10N30/12; C10N40/02; C10N50/10
Foreign References:
| JPH10279981A | 1998-10-20 | |||
| JP2008239687A | 2008-10-09 | |||
| JP2009185084A | 2009-08-20 | |||
| JP2011084646A | 2011-04-28 | |||
| JP2012012441A | 2012-01-19 | |||
| JP2012193298A | 2012-10-11 | |||
| JP2014084442A | 2014-05-12 | |||
| JP2020116496A | 2020-08-06 |
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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