Synthetic Fluids for High Capacity Traction Drives

Abstract

A series of fluids having coefficients of traction in rolling contact devices higher by 30% or more than those of the best previously available oils have been developed. These fluids have good oxidation stability in the 300–350 F range, are compatible with standard engineering materials and have viscosity characteristics suitable for industrial or vehicular applications. The screening test methods used for determination of coefficient of traction in the development of these fluids are described.