Refrigerating machine oil composition

摘要

Disclosed is a refrigerating machine oil composition, comprising a base oil and a metal salt of a carboxylic aid having from 3 to 60 carbon atoms. The refrigerating machine oil (lubricating oil) of the present invention is very well miscible with hydrogen-containing Flon refrigerants such as Flon 134a, achieves an excellent lubrication performance and is good enough to bring forth marked improvement of a wear resistance, particularly a wear resistance of aluminum-steel friction surfaces.