Required information

Bearing reactions R₁ and R₂ are exerted on the shaft shown in the figure, which rotates at 950 rev/min and supports an 9-

kip bending force. Use a 1095 HR steel. Specify a diameter d using a design factor of nd= 1.6 for a life of 10 hr. The

surfaces are machined. Assume k = 0.85 and q=0.85.