| 摘要 |
PURPOSE:To improve high-temperature bearing lives by incorporating a specific alkylthio-1,3,5-triazine compound and a diphenylamine antioxidant into a mineral oil. CONSTITUTION:Into a mineral oil are incorporated 0.01 to 0.5wt.% alkylthio-1,3,5-triazine compound of the formula (wherein R<1> and R<2> each represents a 1-8C alkyl and R<3> and R<4> each represents a 4-20C alkyl), 0.1 to 5wt.% diphenylamine antioxidant, and a thickening agent. |
