| 摘要 |
PURPOSE:To obtain a lubrication oil composition for bearing, effective to prevent the damages of the bearing such as abrasion, seizing, etc. and the rise in oil temperature, by adding specific amounts of graphite fine particles, oil-soluble organic lead compound, olefin sulfide and alkyl phosphate compound to a base oil. CONSTITUTION:The objective lubrication oil composition is produced by compounding (A) 100pts.wt. of a base oil such as mineral oil, with (B) 0.2-5pts.wt. of graphite fine particles, (C) 0.5-3pts.wt. of an oil-soluble organic lead compound (e.g. lead soap, lead dialkyldithiocarbamate, etc.). (D) 0.3-2.0pts.wt. (in terms of sulfur) of an olefin sulfide having an average molecular weight of about 500-1,000, and (E) 0.02-0.1pts.wt. (in terms of phosphorus) of an alkyl phosphate compound and/or alkyl (di)thiophosphate compound. |
