Title:
GREASE COMPOSITION AND GREASE-FILLED ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2019/009058
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a grease composition capable of limiting the occurrence of cold run noise even under extremely low temperature conditions of below -20°C. The grease composition comprises a base oil and a thickening agent and is characterized in that: the base oil has a poly-α-olefin oil as an essential component; the thickening agent is a diurea compound selected from the group consisting of aliphatic diurea compounds, aromatic diurea compounds and alicyclic diurea compounds, and 10 mass% to less than 20 mass% is contained with respect to the total amount of the base oil and thickening agent; and the composition is used at low temperatures below -20°C.
Inventors:
ITO MOTOHIRO (JP)
Application Number:
PCT/JP2018/023222
Publication Date:
January 10, 2019
Filing Date:
June 19, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C10M169/02; C10M107/02; C10M115/08; F16C19/06; F16C33/66; C10N20/00; C10N20/02; C10N30/08; C10N40/02; C10N50/10
Domestic Patent References:
| WO2012036076A1 | 2012-03-22 |
Foreign References:
| JP2000109862A | 2000-04-18 | |||
| JP2008163216A | 2008-07-17 | |||
| JP2008189848A | 2008-08-21 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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