Question: A heat-treated steel shaft is to be designed to support the spur gear and the overhanging worm shown in the figure. A bearing at A

A heat-treated steel shaft is to be designed to support the spur gear and the overhanging worm shown in the figure. A bearing at A takes pure radial load. The bearing at B takes the worm-thrust load for either direction of rotation. The dimensions and the loading are shown in the figure; note that the radial loads are in the same plane. Make a complete design of the shaft, including a sketch of the shaft showing all dimensions. Identify the material and its heat treatment (if necessary).
Provide an assessment of your final design. The shaft speed is 310rev/min.

100 100 2.4KN 3.8 kN Rg 22.4 kN T=540 Nm

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