Design and Analysis of Differential Gear box for Commercial Vehicle

The main aim of this project work is to perform mechanical design & analysis of differential gear box. Differential is used when a vehicle takes a turn, the outer wheel on a longer radius than the inner wheel. The outer wheel turns faster than the inner wheel that is when there is a relative movement between the two rear wheels. If the two rear wheels are rigidly fixed to a rear axle the inner wheel will slip which cause rapid tire wear, steering difficulties and poor load holding. We have taken grey cast iron and aluminium 7475 alloy materials for conducting the analysis. Presently used materials for gears and gears shafts is Cast Iron, Cast Steel. So, in this paper we are checking as the aluminum 7475 can be the other material for the differential gear box for light utility vehicles so, we can reduce the weight. We had developed this project work as our semester project with a view to get familiar with the technologies as well as application of theories into practical work done by industries. This project contains the design and material selection of the gearbox for different type of vehicles also. For better efficiency, improvement of power transmit rate is important phenomenon.