The contact stress in the mating gears is the key parameter in gear design. Deformation of the gear is also another key parameter which is to be considered. Gears generally fail when the working stress exceeds the maximum stress. The study in this paper shows that the complex design problem of spur gear which requires fine software skill for modeling and also for analyzing. The project aims at the minimization of both contact stress as well as deformation to arrive at the best possible combination of driver and driven gear. In this process comparison of Von Mises Stress, Strain and Total Deformation was done of a ceramic (Silicon Nitride) with a conventional steel gear as a substitute in the gear manufacturing industry and the software programmed was performed in SOLIDWORKS and ANSYS Workbench to get the best result possible. © 2017 Elsevier Ltd.