A horizontal shaft AD supported in bearings at A and B and carrying pulleys at C and D is to transmit 75 kW at 500 r.p.m. from drive pulley D to off-take pulley C, as shown in Fig. 14.18. Calculate the diameter of shaft. The data given is : P= 2 P. (both horizontal), Q=2 Q: (both vertical), radius of pulley C = 220 mm, radius of pulley D = 160 mm, allowable shear stress = 45 MPa. -600 600- 300 2 All dimensions in mm. P