Take the value of the variable load as $300$ Ibf $.$ Specify a square key for gear B$,$ using a factor of safety of $1\mathrm{.}1,$ and assume

the nominal diameter of the shaft to be $1\mathrm{.}00$ inch.

NOTE: This is a multi$-$part question. Once an answer is submitted, you will be unable to return to this part.

Select $1020$ CD steel for the key and determine the length of the key that will result in crushing and shear using a factor of safety of $1\mathrm{.}1.$

The thickness of the key is $0\mathrm{.}25$ in $.$

The length of the key due to shear is

inches and the length of the key due to crushing is

inches.