Shell Oil Comapny

Other

Ryuichi Masumori

Tsutomu Yoshida

Takahiro Ozaki

Keiji Tanaka

Keizo Nagasawa

Takao Nishimura

Yukio Asahara

Yoshihisa Yatsuzuka

A lubricant composition and a ball joint are disclosed. The lubricant composition has about 100 parts by weight of a viscous material chosen from polyisoprene rubber or a viscous composition of a polyisoprene rubber viscous substance, about 15-45 parts by weight of at least one compound chosen from a specific group of aliphatic amides or a specific group of aliphatic bisamides and about 5-30 parts by weight of at least one wax chosen from polyethylene wax, paraffin wax and microcrystalline wax. A ball joint is disclosed that contains this lubricant composition.

Lubricant composition and its use in a ball joint

Grease composition for constant velocity joints comprising a base oil and urea-based thickener, which grease further comprises, (A) from 0.1 to 10% by weight of an optionally substituted molybdenum-organocyclic compound containing at least 5 ring atoms, wherein each ring atom attached directly to the molybdenum atom is a hetero atom, (B) from 0.1 to 5% by weight of at least one sulphur-containing additive chosen from the group consisting of sulphur olefins, sulphur-phosphorus extreme-pressure agents, ashless dithiocarbamates, polysulphides, thiadiazoles and zinc dithiocarbamate, and (C) from 0.1 to 5% by weight of at least one phosphorous-containing additive chosen from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate and triphenylphosphorothionate; a method of lubricating a constant velocity joint comprising packing it with said grease and a constant velocity joint packed with said grease.

Grease composition for constant velocity joints

The present invention relates to a grease composition for a constant velocity joint, which has a low coefficient of friction to decrease the vibrations of CVJ, which comprises a base oil, a urea thickening agent, (A) a molybdenum dialkyldithiocarbamate, (B) at least one molybdenum di(alkyl or aryl)dithiophosphate represented by formula (I):

Grease composition for constant velocity joint

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Tokyo, Japan

Ryuichi Masumori