AN EXTREME PRESSURE RESISTENT INDUSTRIAL GEAR LUBRICANT COMPOSITION PARTICULARLY FOR USE WITH GEAR WHEELS AND THE LIKE

摘要

An improved extreme pressure lubricant composition comprising 93 to 99 percentage by weight of a mineral lubricating base oil and 7 to 1 percentage by weight of additives compatible therewith the additives consisting of 0.5 to 3 percentage by weight of sulphurised polyisobutylene, 0.1 to 1 percentage by weight of an aryl phosphate ester, 0.1 to 2 percentage by weight of analkylated diphenyl amine, 0.1 to 1 percentage by weight of an alkyl orthophosphate alkenyl succinic acid ester, .01 to .04 percentage by weight of a metal de-activator such as herein described and 1 to 10 ppm of a known antifoam agent.