LUBRICANT COMPOSITION AND SLIDING MECHANISM USING THE LUBRICANT COMPOSITION

摘要

Provided by the present invention is a lubricating oil composition showing a very low frictional coefficient when used as a lubricating oil for a low friction sliding material prepared by blending with an additive selected from a specific phosphorus-zinc-containing compound and a specific sulfur-containing compound, and a sliding mechanism having an excellent low frictional property in which a DLC film containing 5 to 50 atom % of hydrogen is formed or a sliding mechanism having an excellent low frictional property in which 1 to 30 atom % of tungsten (W) or molybdenum (Mo) is contained is provided by combining the above lubricating oil composition with a sliding member having a film of a specific low frictional sliding material on a sliding face.