| abstract |
The application provides excellent heat stability and can reduce the lubricating oil composition for buffers of the coefficient of friction of rubber.The lubricating oil composition for buffers is characterized in that, zinc dithiophosphate, (C) fatty acid acyl amine and (D) polyol ester represented by the base oil that is made of containing (A) mineral oil and/or synthetic oil, (B) the following general formula (I) In formula, R 1 ~R 4 Each independently represent any one selected in the straight-chain, branch-like or cricoid alkenyl of the straight-chain from carbon atom number 6~20, branch-like or cricoid alkyl and carbon atom number 6~20. |