A chain drive using bush roller chain transmits $5\mathrm{.}6$ kW of power. The driving shaft on

an electric motor runs at $1440$ r$.$p$.$m$.$ and velocity ratio is $5.$ The centre distance of the

drive is restricted to $550\backslash$pm $2\%$ mm and allowable pressure on the pivot joint is not to

exceed $10$ N$/$mm$2.$ The drive is required to operate continuously with periodic

lubrication and driven machine is such that load can be regarded as fairly constant with

jerk and impact. Design the chain drive by calculating leading dimensions, number of

teeth on the sprocket and specify the breaking strength of the chain. Assume a factor of

safety of $13.$