Question: 4. Given: The Torque in a 02.25 shaft is 3,240 lb.in; shaft and hub are both steel. /10 a. What size of square key,

4. Given: The Torque in a 02.25" shaft is 3,240 lb.in; shaft and hub are both steel. /10 a. What size of square key, W, should be used? Look up S and T and their tolerances and mark them as LIMITS on the diagram below: S, Limits: + -W, Limits: T, Limits: b. The key is made from AISI 1018. Assume a factor of safety of 3. What is the minimum length of key needed?

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