DRIVER SPROCKET

Driver sprocket

        Driver sprocket is usually placed at the motor shaft. That rotates due to the reciprocation of piston connected by crankshaft. The power is conveyed through the chain riding on it as the driven shaft. Roller chain and sprockets is a very efficient method of power transmission compared to belts, with far less frictional loss. Sprockets and chains are also used for power transmission from one shaft to another where slippage is not admissible. They can be run at high speed and some forms of chain are so constructed as to be noiseless even at high speed. Usually drive sprockets are much small in size compared to driven sprocket. The ratio between the drive and driven sprockets are maintained to reduce or increase the power supplied to transmit to the wheels. The drive sprocket used in this project is having 13 teeth with a pitch diameter of 87mm.

Usually driver sprocket is fixed onto a motor shaft using a key slot provided. The sprocket is made to fit on the shaft and the key is inserted to make the contact firm from rumbling on shaft or on roller chain.