Yip\'s Chemical Group Co., Ltd.

Gear oil can be divided into vehicle gearoil and industrial gear oil according to their purposes, and the differencebetween the two in the application conditions determines their difference inperformance. In addition to viscosity, viscosity indices, flash points,moisture, mechanical impurities, copper sheet corrosion and foam resistance,etc, for the methods for the appraisal of gear oil, industrial gear oilstresses the appraisal of extreme pressure anti-wear performance, stability inoxidation and emulsification resistance performance, while vehicle gear oilfocuses on low temperature performance and whether to have passed four geartest racks (including L－33 antirust and anti-corrosionrack test, L－37 low speed high torque gear rack test,L－42 high speed impact load rack test, L－60or L－60－1 thermal oxidation stabilityand cleanliness rack test).