Grease composition for use in constant velocity joints comprising at least two different molybdenum compounds

摘要

SUMMARY OF THE INVENTION The present invention is directed to a grease composition that reduces or prevents noise, vibration, and nuisance (NVH) in a power transmission system, comprising two or more different molybdenum compounds for use in a constant velocity joint. ,;a) base oil mixture; b) one or more tri-nuclear molybdenum compounds of the formula: Mo ₃ S _k L _n Q _z , where L is an independently selected ligand consisting of an organic group having a sufficient amount of carbon atoms to provide a compound that is soluble or dispersible in oil, n is from 1 Up to 4, k varies from 4 to 7, Q is selected from the group of compounds that contribute to neutral electrons such as amines, alcohols, phosphines and ethers, z ranges from 0 to 5 and gives nonstoichiometric values C) one or more additional molybdenum containing compounds; And d) one or more single and / or complex soap thickeners.;Constant velocity joint, grease composition, base oil mixture, trinuclear molybdenum compound, abrasion, coefficient of friction