Research on Optimum Design of Gear Wear Capacity and Gear Sliding Factor Lin Caihe Dept. of Mechanical Engineering, Wuhan University of TechnologyIn this paper conformance of the optimal results which have been obtained by use offormula of the gear wear capacity and the gear sliding factor have been expounded and proved. It isconvenient to optimize by use of formula of the sliding factor to decrease wear of the gear. The opti-mum method is used to build up the mathematical model with which the optimal selection of the cor-rection coefficient is carried out according to the principle of equal sliding factor for the drive of invo-lute cylindrical gear. The computer-program is programed and calculation is processed; Satisfactoryresults have been obtained.gear;;wear capacity;;sliding factor;;optimum