GREASE COMPOSITION, GREASE PRELUBRICATED BEARING, UNIVERSAL JOINT AND LINEAR MOTION DEVICE

Title:

GREASE COMPOSITION, GREASE PRELUBRICATED BEARING, UNIVERSAL JOINT AND LINEAR MOTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/090722

Kind Code:

A1

Abstract:

Provided are a grease composition which exhibits excellent low friction properties even with a low molybdenum content (0.06 weight% or less) when used under severe sliding conditions such as high speed and high surface pressure, and a bearing, a universal joint and a linear motion device which encapsulate the grease composition therein. The grease prelubricated bearing (1) is composed of encapsulating a grease composition (7) at least around fluid (4), the grease composition (7) comprising a base oil, a thickener and an additive, the additive containing dithiocarbamate molybdenum and sodium dithiocarbamate, and the molybdenum content with respect to the whole grease composition being 0.06 weight% or less.

Inventors:

KAWAMURA TAKAYUKI
ASAO MITSUNARI

Application Number:

PCT/JP2011/079145

Publication Date:

July 05, 2012

Filing Date:

December 16, 2011

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)
KAWAMURA TAKAYUKI
ASAO MITSUNARI

International Classes:

C10M169/00; C10M101/02; C10M105/04; C10M105/32; C10M107/02; C10M115/08; C10M125/10; C10M129/32; C10M135/10; C10M135/18; C10N10/02; C10N10/04; C10N10/12; C10N30/06; C10N40/00; C10N40/02; C10N40/04; C10N50/10

Foreign References:

JP2007262300A	2007-10-11
JP2001187891A	2001-07-10
JPH08188790A	1996-07-23
JPH08188788A	1996-07-23

Other References: