Grease composition for constant velocity joint
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United States of America Patent
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Jul 10, 2001
Grant Date -
N/A
app pub date -
Apr 21, 2000
filing date -
Apr 21, 1999
priority date (Note) -
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Abstract
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): ##STR1## wherein R.sup.1 represents a primary or secondary alkyl group or an aryl group, and (C) at least one sulfur-containing additive selected from the group consisting of an ashless dithiocarbamate, a polysulfide, zinc dithiocarbamate, sulfurized fat and oil, an olefin sulfide, a sulfur-phosphorus extreme pressure additive, and a thiadiazole extreme pressure additive, wherein each of the components (A), (B) and (C) is in an amount of 10% by weight or less based on the total weight of the grease composition.
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