The present invention provides a grease composition for automobile wheel bearings, which contains (a) an urea thickener represented by general formula (1): R
1
—NHCONH—R
2
—NHCONH—R
3
(wherein R
1
and R
3
may be the same or different from each other and are each independently an aromatic hydrocarbon group having 6 to 12 carbon atoms, and R
2
represents an aromatic hydrocarbon group having 6 to 15 carbon atoms); (b) an organic molybdenum compound; and (c) a base oil. The composition of the present invention can extend the flaking life and lubrication life, and reduce the fretting wear.
GREASE COMPOSITION FOR AUTOMOBILE WHEEL BEARING
申请人:KUBOTA Kazunori
公开号:US20110086785A1
公开(公告)日:2011-04-14
The present invention provides a grease composition for automobile wheel bearings, which contains (a) an urea thickener represented by general formula (1); R
1
—NHCONH—R
2
—NHCONH—R
3
(wherein R
1
and R
3
may be the same or different from each other and are each independently an aromatic hydrocarbon group having 6 to 12 carbon atoms, and R
2
represents an aromatic hydrocarbon group having 6 to 15 carbon atoms); (b) an organic molybdenum compound; and (c) a base oil. The composition of the present invention can extend the flaking life and lubrication life, and reduce the fretting wear.
GREASE COMPOSITION FOR HUB UNIT BEARING
申请人:Azuma Takashi
公开号:US20130157915A1
公开(公告)日:2013-06-20
The invention provides a grease composition for huh unit bearing, containing (a) an aromatic diurea thickener, (b) a base oil, (c) a metal salt of oxidized wax, (d) diphenyl hydrogen phosphate, and (e) at least one rust preventive selected from the group consisting of sulfonate rust preventives and carboxylic acid rust preventives. The grease composition of the invention shows excellent anti-fretting properties at low temperature, and at the same time, exhibit excellent rust preventing properties.
GREASE COMPOSITION WITH IMPROVED ANTI-FRETTING PROPERTIES AT LOW TEMPERATURES
申请人:KYODO YUSHI CO., LTD.
公开号:US20150299610A1
公开(公告)日:2015-10-22
The invention provides a grease composition containing a thickener, a base oil and an amine phosphate.