chain sprocket system is designed to drive a shaft. Assume the following conditions: i. Use SAE 1018 steel for the key (which is the weakest material in comparison to other components) ii. The chain sprocket has a bore diameter of 2.5" and the hub length of 3.125" ill. The sprocket delivers 110 horsepower to a shaft with the rotation of 1700 rpm. iv. Safety factor of 3 Determine 1). The dimensions of the square key: Width: Minimum length (so the key will not fail): 2). The minimum contact length on the hub (so the hub will not fail);