4.Sprockets:
It serves
as driving unit. It holds the chains of the conveyor which hold the bucket. With the help of sprockets the power of motor is
transmitted from one side to the other side of the conveyor. The number of teeth of the sprocket was 32. The sprockets were a
ttach
ed
to the shafts rigidly and the shafts were attached to the frame with the help of bearings and bearing holders.