A solid 1.500-in.-diameter steel shaft is subjected to torques TB = 255 lb-ft and TD= 95 lb-ft, acting in the directions shown. If the allowable shear stress in the shaft is 18 ksi, determine the maximum torque TC that can be applied to the shaft. Express your answer in lb-ft rounded to three significant figures

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Design of Shafts and Shaft Components

The shaft is basically defined as the machine element that rotates, is in circular cross-section, it is majorly used to transfer the power from one part of the system to another, or from a power generating machine to a power absorbing machine. The shaft is supported on bearings and is rotated with the help of a set of gears or pulleys that are used for the power transmission. Bending moment, torsion, and an axial force act upon the shaft. Designing of shaft primarily involves determining stresses at a critical point in the shaft that is arising due to loading.