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Title:
GREASE COMPOSITION AND ROLLING MECHANISM
Document Type and Number:
Japanese Patent JP2008308617
Kind Code:
A
Abstract:

To provide a grease composition enabling its own lubricating performance to be maintained by the suppression of the deterioration of a thickening agent therein, even at such an elevated temperatures over 200C, and to provide a rolling mechanism lubricated with the same and sufficiently withstanding its own use at such an elevated temperature over 200C.

The grease composition comprises a base oil, the thickening agent and an antioxidant, wherein the antioxidant has been impregnated into the thickening agent by the treatment with supercritical carbon dioxide.


Inventors:
Toda, Yujiro
Yatani, Koichi
Application Number:
JP2007000159192
Publication Date:
December 25, 2008
Filing Date:
June 15, 2007
Export Citation:
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Assignee:
NSK LTD
International Classes:
C10M169/00; C10M101/02; C10M105/06; C10M105/14; C10M105/18; C10M105/36; C10M105/38; C10M105/44; C10M105/54; C10M105/74; C10M107/02; C10M107/08; C10M107/10; C10M107/38; C10M107/50; C10M115/08; C10M117/00; C10M133/40; C10M135/30; C10M177/00; C10N30/08; C10N40/02; C10N50/10; C10N70/00; F16C33/66