1. It is required to design a chain drive to connect a 18.5kW motor running at 725rpm to a gear pump operating at 400rpm. The approximate centre distance between the motor and pump is 470mm (i) Select a proper roller chain and give its dimensions (ii) Determine the pitch circle diameter of the sprockets (iii) Determine the number of chain links (iv) Specify the correct centre distance between the axis of the sprockets