| abstract |
PROBLEM TO BE SOLVED: To provide a grease composition for a constant velocity joint that effectively prevents a temperature increase of the constant velocity joint and imparts excellent constant velocity joint durability. A grease composition for a constant velocity joint comprising the following components (a) to (g): (A) base oil, (B) Diurea thickener represented by the following formula: R 1 NH-CO-NH- C 6 H 4 -p-CH 2 -C 6 H 4 -p-NH-CO-NHR 2 (Wherein, R 1 and R 2 are each independently an alkyl group having 8 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a cycloalkyl group having 6 to 12 carbon atoms), (C) molybdenum dialkyldithiocarbamate that does not dissolve in the base oil, (D) molybdenum dialkyldithiocarbamate dissolved in the base oil; (E) molybdenum disulfide, (F) calcium phenate or calcium sulfonate, and (g) a sulfur-based extreme pressure additive not containing phosphorus. |