Amild steel shaft transmits 15 kW at 210r.p.m It is supported on two bearings 750 mm apart and has

two gears keyed to it. The pinion having 24 teeth of 6 mm module is located 100 mm to the left of the

right hand bearing and delivers the power horizontally to the right. The gear having 80 teeth of 6 mm

module is located 15 mm to the right of the left hand bearing and receives power in a vertical direction

from below. B Assuming an allowable working shear stress as 53 MPa, and a combined shock and

fatigue factor of 1 5 in bending as well as in torsion, determine the diameter of the shaft.