Rust preventive oil for a low frictional torque tapered roller bearing

摘要

A rust preventive oil comprising a base oil having a viscosity of from 10 to 20 centistokes at 40 C. which consists of from 70 to 80 percent by weight of low viscosity mineral oil and from 10 to 20 percent by weight of high viscosity mineral oil and additives such as barium sulphonate, wax or ester thereof, amine, higher alcohol, antioxidant and non-corrosive extreme pressure additive is beneficially suited for the high precision low frictional touque tapered roller bearing.