5-1. A shaft is made of a steel alloy having an allowable shear stress of Tallow 12 ksi. If the diameter of the shaft is 1.5 in., determine the maximum torque T that can be transmitted. What would be the maximum torque T’ if a 1-in.-diameter hole is bored through the shaft? Sketch the
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*6-120. The shaft is supported on two journal bearings at A and B which offer no resistance to axial loading. Determine the required diameter d of the shaft if the allowable bending stress for the material is 150 MPa.
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