| 摘要 |
<p>It is intended to provide a lubricating oil excellent in biological safety (biological harmlessness), environmental protecting properties (safety), heat resistance (tolerance to autoclave), durability and so on which is to be applied to high-speed cutters such as a high-speed rotary air turbine hand piece for dental use. A lubricating oil for rolling bearing units in high-speed cutters characterized by comprising vegetable non-dry oil extracted from rice bran (rice bran oil).</p> |
