The lever is attached to the shaft A using a key that has
Chapter 1, Problem 1-70(choose chapter or problem)
The lever is attached to the shaft A using a key that has a width d and length of 25 mm. If the shaft is fixed and a vertical force of 200 N is applied perpendicular to the handle, determine the dimension d if the allowable shear stress for the key is \(\tau_{\text {allow }}=35 \ \mathrm{MPa}\).
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