he solid shafts ABC and DEF and the gears shown are used
Chapter 8, Problem 8.25(choose chapter or problem)
The solid shafts ABC and DEF and the gears shown are used to transmit 20 hp from the motor M to a machine tool connected to shaft DEF. Knowing that the motor rotates at 240 rpm and that tall \(\tau_\text{all}=7.5 \text{ ksi}\), determine the smallest permissible diameter of (a) shaft ABC, (b) shaft DEF.
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