Patent ID: 7897550

Claim:
An urea grease composition for constant velocity joints, comprising base oil, at least one urea thickener compound, (A) at least one molybdenum sulphurized dialkyldithiocarbamate represented by general formula (I) wherein R 1 and R 2 are independently chosen from alkyl groups of from 1 to 24 carbons, m+n=4, m is from 0 to 3 and n is from 4 to 1, (B) triphenylphosphorothionate represented by formula (II) (C) at least one stearic acid metal salt present in the urea grease composition in the range from 0.5 to 10% by weight with respect to the total weight of the urea grease composition, wherein the stearic acid metal salt is either zinc stearate or aluminum stearate; and (D) at least one calcium based dispersant.