| 摘要 |
PROBLEM TO BE SOLVED: To provide a grease composition which can significantly reduce a coefficient of static friction of a fitting part of a spline part.SOLUTION: The present invention provides a grease composition for a fitting part of a spline part, where the composition comprises a base oil, a thickener and an oily agent, the base oil has a kinematic viscosity in the range of 100-6,000 mm/s at 40°C, the oily agent is an ester of a C14-C18 fatty acid and an alcohol, and the content of the oily agent is 2-15 mass% relative to the total mass of the grease composition.SELECTED DRAWING: None |
