Title:
GREASE COMPOSITION AND GREASE-SEALED BEARING
Document Type and Number:
WIPO Patent Application WO/2021/153258
Kind Code:
A1
Abstract:
Provided are a grease composition which can effectively prevent premature stripping caused by hydrogen embrittlement and a grease-sealed bearing in which the grease composition is sealed. A grease composition 7 comprises a base oil, a thickener and additives, wherein the additives comprise sodium molybdate and a zinc alkyldithiophosphate containing a primary alkyl group having 1-30 carbon atoms, sodium molybdate is contained in an amount of 0.1-5 mass% relative to the total grease composition, and the zinc alkyldithiophosphate is contained in an amount of 0.1-5 mass% relative to the total grease composition.
Inventors:
KAWAMURA TAKAYUKI (JP)
Application Number:
PCT/JP2021/001151
Publication Date:
August 05, 2021
Filing Date:
January 15, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C10M141/10; C10M169/06; F16C19/02; F16C19/06; F16C19/22; F16C33/66; F16C33/78; C10M107/02; C10M115/08; C10M125/00; C10M137/10; C10N10/02; C10N10/12; C10N30/00; C10N40/02; C10N50/10
Foreign References:
| JP2006342939A | 2006-12-21 | |||
| JP2016133143A | 2016-07-25 | |||
| JP2006242331A | 2006-09-14 | |||
| JP2017036385A | 2017-02-16 | |||
| JP2004323586A | 2004-11-18 | |||
| JP2008286223A | 2008-11-27 | |||
| JP2020204015A | 2020-12-24 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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