Grease composition for hub unit bearing
AssigneesNtn Corporation, Kyodo Yushi Co., Ltd.
InventorsTakashi Azuma, Yoshihisa Imamoto, Motohiro Ito, Yasushi Shibata
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Abstract
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.
Claims8
A grease composition for hub unit bearing, comprising the following components (a) to (e):
- (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.
Dependencies are inferred from the claim text.