(Solved): The stepped shaft shown must transmit 47 kW. Knowing that the allowable shearing stress in the sha ...

The stepped shaft shown must transmit 47 kW. Knowing that the allowable shearing stress in the shaft is 40 MPa and that the radius of the fillet is r= 6 mm, determine the smallest permissible speed of the shaft. Refer to figure 3.28. 60 mm 30 mm The smallest permissible speed of the shaft is Hz.