Abstract: Gear trains are used to transmit the power in various industrial applications. For gear train, various conflicting and dependent parameters needs to be, analyzed during its design and manufacturing. The study of conflicting dependent parameters with various optimization tools is presented in this paper as review. Total number of research papers studied are thirty-six which are further grouped in five categories like design method used, software used etc. The design parameters are considered for optimization are face width, moduleand number of teeth on pinion and gear etc. The exhaustive literature review reviled that genetic algorithm is the most commonly used optimization technique for designing industrial gear train.
Keywords: gear train, optimization, GA, PSO, SA.