| abstract |
(57) [Summary] (with correction) [PROBLEMS] To provide a bearing capable of maintaining low torque, low noise, and low volatility. SOLUTION: An alkali metal salt synthesized from a hydroxide of an alkali metal or an alkaline earth metal and a higher fatty acid having 10 or more carbon atoms or a higher hydroxy fatty acid having 10 or more hydroxyl groups and having 10 or more hydroxyl groups, and / or Or an alkaline earth metal salt, a carbonate compound, and at least one member selected from the group consisting of a diester synthetic oil, a triester synthetic oil, a tetraester synthetic oil, and another neopentyl polyol ester synthetic oil. A grease composition containing an ester-based synthetic oil is sealed in a bearing. |