Abstract:Two kinds of newly developed oil film bearing oils, RM220 and RS220 oils were tested on the oil-film bearing test platform of rolling mill. The stability of the test platform was analyzed, the load carrying properties, anti wear performance and anti foam performance of the oil-film bearing oils under different working conditions were estimated, and the viscosity temperature curve was measured and fitted. The results show that the test platform has stable performance in testing the oil-film bearing oils. RM220 and RS220 oils have similar viscosity temperature performance and anti-foam performance, but RS220 oil has good anti-wear performance, and has a better load-carrying property at low speed and medium load.