gear is rotating machine part having teeth, which transmits torque. Gears are used for changing direction by which power is to be transmitted. The Spur gear is the essential type of gear, which is the most commonly used gear type. Gear drive plays a vital role in the transmission of power in various industries. In the current work investigated the characteristics of a gear system including bending stresses, contact stresses and the gear mesh errors in Transmission. Gears are mostly subjected to fluctuating loads. While designing the spur gear mainly concentrate on the stresses for safety operations. In this project designed the physical model of spur gear in "SOLIDWORKS" and imported the model to "ANSYS" software for the static structural analysis and dynamic/transient structural analysis. In the current work, static analysis is carried out to determine the deformation. This Analysis is done by considering various materials such as Structural Steel, Titanium Alloy, Aluminium Alloy, Carbon, and S-Glass composite, and results are compared with them.