Design and Fabrication of Bicycle Using Bevel Gear

Abstract

Shaft driven bicycle is a bicycle that uses a shaft drive instead of a chain which contain two set of bevel gear at both the ends to make a new kind of transmission system for bicycle for getting high reliability system, and more safe system. This project is developed for the users to rotate the back wheel of a two-wheeler using propeller shaft. Usually in two-wheelers bicycle, chain and sprocket method is used to drive the back wheel. Shaft-driven bicycle have a large bevel gear where a conventional bicycle would have its chain ring. This meshes with another bevel gear mounted on the drive shaft. The use of bevel gears allows the axis of the drive torque from the pedals to be turned through 90 degrees. The drive shaft then has another bevel gear near the rear wheel hub which meshes with a bevel gear on the hub where the rear sprocket would be on a conventional bicycle and cancelling out the first drive torque change of axis.