The present study concentrates on the changes in gear teeth engagement and stress analysis of meshing teeth when gearing system is operated at a non-standard extended center distance. (Ansys) programming using F.E.M have been applied for stress analysis on a gear model. Many cases with changing center distance have been studied. It is clear that the operating center distance was increased; the stresses generated on tooth will be increased dependently.
Keywords : Spur gear, Center distance, Teeth engagement, Stress analysis