| 摘要 |
This refrigerator lubricating oil includes: a base oil, the main component of which is a polyol ester (A) of C3-C18 fatty acids (a1) and of a polyol (a2) that is selected from among neopentyl glycol, trimethylolethane, trimethylolpropane, trimethylolbutane, pentaerythritol, and dipentaerythritol; and a disulfide and/or trisulfide compound (B). The blended amount of the disulfide and/or trisulfide compound (B)is, in terms of sulfur, 30-10000 mass ppm with respect to the total amount of the refrigerator lubricating oil. |
