Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
GREASE COMPOSITION AND WHEEL SUPPORTING ROLLING BEARING UNIT ENCAPSULATING GREASE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/046598
Kind Code:
A1
Abstract:
Provided are: a grease composition which reduces load sensitivity of a running torque, maintains necessary properties for a wheel supporting rolling bearing unit and is capable of keeping an excellent lubricated condition for an extended period of time; and a wheel supporting rolling bearing unit which encapsulates the grease composition. In order to achieve the above, the present invention is a grease composition and a wheel supporting rolling bearing unit which encapsulates the grease composition, the grease composition comprising a base oil, a thickener, a rust inhibitor and an anti-wear agent, wherein the base oil is a mineral oil, a synthetic oil or a mixture thereof, the mixing ratio (mass ratio) of the mineral oil and the synthetic oil is 0:100 to 20:80, the kinematic viscosity of the base oil at 40°C is 70 to 150 mm2/s, and the pour point of the base oil is -40°C or less.

Inventors:
SOGA KAZUHIRO (JP)
MIYAGAWA TAKAYUKI (JP)
INAMI NORIYUKI (JP)
Application Number:
PCT/JP2012/005940
Publication Date:
April 04, 2013
Filing Date:
September 18, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NSK LTD (JP)
International Classes:
C10M169/00; F16C19/18; F16C19/38; F16C33/66; C10M101/02; C10M105/18; C10M105/32; C10M107/02; C10M115/08; C10M129/40; C10M129/58; C10M129/76; C10M137/10; C10N10/04; C10N20/02; C10N30/06; C10N30/12; C10N40/02; C10N50/10
Domestic Patent References:
WO2008044650A12008-04-17
Foreign References:
JP2009209179A2009-09-17
JP2005298537A2005-10-27
JP2010024440A2010-02-04
JP2006292039A2006-10-26
JP2006124426A2006-05-18
JP2009299846A2009-12-24
JP2007112920A2007-05-10
Attorney, Agent or Firm:
MORI, Tetsuya et al. (JP)
Woods Tetsuya (JP)
Download PDF:
Claims: