LUBRICATING OIL COMPOSITION AND LUBRICATING OIL FOR FLUID DYNAMIC BEARING AS WELL AS FLUID DYNAMIC BEARING AND METHOD FOR LUBRICATING FLUID DYNAMIC BEARING USING THE SAME

摘要

This invention relates to a lubricating oil composition being excellent in oxidation stability and low-temperature flowability, and more particularly to a lubricating oil composition characterized by using as a base oil a diester obtained from a straight-chain dihydric alcohol having a carbon number of 6 to 12 and having a hydroxyl group at both terminal carbon atoms respectively and a branched-chain saturated monovalent fatty acid having a carbon number of 6 to 12.