Title:
GREASE COMPOSITION
Document Type and Number:
Japanese Patent JP2014105252
Kind Code:
A
Abstract:
To provide means capable of practically preventing or reducing generation of seizure even with long-term use and/or maintaining the friction coefficient in a low range at a fitted part of a hobbed spline part.
The present invention relates to a grease composition containing: a base oil having kinetic viscosity in the range of 100 to 300 mm2/s at 40°C; a thickener made of a diurea compound represented by formula (I), where R1 and R2 are each independently a C6 to C20 alkyl; and an additive made of a true spherical polymer having an average particle diameter of 5 μm or less.
Inventors:
MURASE HIROYUKI
IKUMA KYOSUKE
OSAWA HISAYUKI
IKUMA KYOSUKE
OSAWA HISAYUKI
Application Number:
JP2012258162A
Publication Date:
June 09, 2014
Filing Date:
November 27, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CORP
KYODO YUSHI
KYODO YUSHI
International Classes:
C10M115/08; C10M143/02; C10M145/14; C10M145/20; C10M149/18; C10M169/02; C10N20/00; C10N20/02; C10N20/06; C10N30/00; C10N30/06; C10N40/02; C10N50/10
Domestic Patent References:
| JP2007138110A | 2007-06-07 | |||
| JP2005112955A | 2005-04-28 | |||
| JP2008138810A | 2008-06-19 | |||
| JP2005247971A | 2005-09-15 | |||
| JPH1067847A | 1998-03-10 | |||
| JP2005105026A | 2005-04-21 | |||
| JP2007297449A | 2007-11-15 |
Attorney, Agent or Firm:
Yusuke Hiraki
Satoshi Fujita
Naomi Shimamura
Hidetoshi Hanai
Satoshi Fujita
Naomi Shimamura
Hidetoshi Hanai