Title:
GREASE COMPOSITION, AND ROLLING BEARINGS
Document Type and Number:
WIPO Patent Application WO/2022/034883
Kind Code:
A1
Abstract:
The present invention relates to a grease composition which includes a base oil, a thickener, a zinc sulfonate, a polysulfide, a hyperbasic calcium sulfonate, and a triphenylphosphite, wherein, with respect to the total mass of the base oil and the thickener, the amount of the zinc sulfonate is 0.030-0.045 mass% in terms of zinc content, the amount of the polysulfide is 0.16-0.24 mass% in terms of sulfur content, the amount of the hyperbasic calcium sulfonate is 0.010-0.015 mass% in terms of calcium content, and the amount of the triphenylphosphite is 0.24-0.36 mass%.
Inventors:
TSUDA TAKESHI (JP)
HAGINO YURIE (JP)
SAKAI KAZUMI (JP)
AYAME YUSUKE (JP)
TATSUMI GO (JP)
SAKAMOTO KIYOMI (JP)
HAGINO YURIE (JP)
SAKAI KAZUMI (JP)
AYAME YUSUKE (JP)
TATSUMI GO (JP)
SAKAMOTO KIYOMI (JP)
Application Number:
PCT/JP2021/029534
Publication Date:
February 17, 2022
Filing Date:
August 10, 2021
Export Citation:
Assignee:
JTEKT CORP (JP)
ENEOS CORP (JP)
ENEOS CORP (JP)
International Classes:
C10M169/00; C10M163/00; C10M105/18; C10M115/08; C10M135/10; C10M135/20; C10M137/02; C10M159/24; C10N40/02; C10N50/10
Domestic Patent References:
| WO2015016376A1 | 2015-02-05 | |||
| WO2012124815A1 | 2012-09-20 |
Foreign References:
| JPH0860174A | 1996-03-05 | |||
| JP2020059776A | 2020-04-16 |
Attorney, Agent or Firm:
UENO, Hideki (JP)
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