The effective handle length of a wrench is 30 cm. The bolt is made of grade 5 steel. What is the minimum diameter of the bolt that can be tightened with this tool if a force of 50 N is applied and you want to respect a safety factor of 6 on the bolt?

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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.