| abstract |
PROBLEM TO BE SOLVED: To provide a grease composition for a plunging type constant velocity joint which can efficiently lubricate a constant velocity joint, effectively reduce friction and prevent generation of vibration. SOLUTION: (a) base oil, (b) urea thickener, (c) at least one selected from the group consisting of molybdenum dithiocarbamate and molybdenum dithiophosphate Seed organo molybdenum compound, (d) calcium salt of petroleum sulfonic acid, calcium salt of alkyl aromatic sulfonic acid, Salicylate calcium salt, phenate calcium salt, oxidized wax calcium salt, petroleum sulfonic acid overbased calcium salt, alkyl aromatic sulfonic acid overbased calcium salt, salicylate overbased calcium salt, phenate overbased A grease composition for constant velocity joints, containing at least one calcium salt selected from the group consisting of a soluble calcium salt and an overbased calcium salt of an oxidized wax. |