Title:
GREASE COMPOSITION FOR ROLLING BEARING, AND ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2013/047781
Kind Code:
A1
Abstract:
Provided are a grease composition for a rolling bearing, and a rolling bearing in which the grease composition is encapsulated. The grease composition comprises a mixed oil of a trimethylolpropane fatty acid ester oil and at least one type of pentaerythritol fatty acid ester or other lubricating oil, and a base oil having a dynamic viscosity at 40°C of 19 - 35 mm2/s and an evaporation rate of 10 to 15 mass% when kept for 250 hours at 150°C contains a diurea compound as the thickener.
Inventors:
NAKAGAWA KAZUNORI (JP)
TODA YUUJIRO (JP)
HACHIYA KOICHI (JP)
TODA YUUJIRO (JP)
HACHIYA KOICHI (JP)
Application Number:
PCT/JP2012/075147
Publication Date:
April 04, 2013
Filing Date:
September 28, 2012
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
C10M169/02; C10M105/38; C10M115/08; F16C33/66; C10N20/02; C10N30/06; C10N30/08; C10N40/02; C10N50/10
Foreign References:
| JP2009001611A | 2009-01-08 | |||
| JP2003105366A | 2003-04-09 | |||
| JP2001003070A | 2001-01-09 | |||
| JP2008143979A | 2008-06-26 | |||
| JP2009001611A | 2009-01-08 |
Other References:
See also references of EP 2762554A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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Claims:
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