| 摘要 |
PROBLEM TO BE SOLVED: To provide a grease composition having significant effect on reduction in friction coefficient.SOLUTION: The grease composition includes the following components (a) to (d): (a) a base oil; (b) a thickening agent; (c) an alkyl phosphate metal salt represented by a general formula (1): [{RO(CHO)}PO(O)(OH)](M)...(1), (where R represents a hydrocarbon group having a carbon number of 1 to 30, and a plurality of R may be the same or different; M represents an alkali metal, alkali earth metal, zinc, aluminum, or magnesium); a represents 1 or 2; b represents 1 or 2; c represents 1 to 3; d represents 0 or 1, but d is 0 if a is 2; e represents 2 or 3; and n represents 0 to 60); and (d) molybdenum dialkyldithiocarbamate. |
