Prediction of performance of industrial gear oil formulations

Abstract

To develop industrial gear oils, additive systems consisting of load-carrying agents (extreme pressure additives) and corrosion inhibitors are generally used. In this study, a sulphurized ester was used as the load-carrying agent. To optimize the level of sulphur treatment of the ester, and the dosages of sulphur and corrosion inhibitor in the formulations to produce an acceptable level of performance, a number of experiments have to be carried out which are expensive and time consuming. Keeping this in view, an attempt was made to develop a model to predict the performance in terms of weld load and mean Hertz load. It was found that the model gave high values of coefficient of determination, and R values of 0.97 and 0.93 for the weld load and mean Hertz load respectively, based on the above parameters.