Grease composition suitable for a constant velocity joint

摘要

A grease composition is disclosed which contains a lubricating base oil, and: (A) 2 to 30 wt% of a urea thickener, (B) 0.1 to 20 wt% of a sulfur-containing extreme pressure agent selected from the group consisting of dihydrocarbyl polysulfide, sulfurized oils and fats and mixtures thereof, and (C) 0.05 to 10 wt% of a sulfonate selected from the group consisting of an over-based zinc sulfonate, an over-based magnesium sulfonate and mixtures thereof having total base number of 100 to 500mgKOH/g, each based on a total amount of said composition.