| abstract |
(57) [Problem] To provide a conductive lubricant for a dynamic pressure bearing capable of grounding static electricity generated in the dynamic pressure bearing without impairing the performance of the dynamic pressure bearing. SOLUTION: This conductive lubricant for a dynamic pressure bearing is an ester base oil having heat resistance, low evaporation amount, low cost, and wettability to metal required for the dynamic pressure bearing 1. (Dioctyl sebacate) and an antistatic agent (alkyl allyl sulfonate) having an affinity for the ester base oil in a ratio of 0.1 to 5% by weight. Therefore, the antistatic agent imparts conductivity to the base oil, and grounds static electricity generated in the dynamic pressure bearing without impairing lubrication performance. |