A mild steel shaft has to transmit 100 hp at 200 rpm. Design a cast iron flange coupling for the shaft. The allowable stresses are as follows:
Shear stress for shaft and key = 40 N/mm2
Shear stress for bolts = 28 N/mm2
Shear stress for C.I. coupling = 20 N/mm2
Take bearing stress as twice the shear tress value and number of bolts for the coupling as 6. Sketch the Coupling showing various dimensions.