A gear transmnits 5000 lb in. of torque to a circular shaft having a diameter of 2.25 in. A square key 0.50 in. on a side connects the shaft to the hub of the gear, as shown in Figure P4-30. The kcy...

Extracted text: A gear transmnits 5000 lb in. of torque to a circular shaft having a diameter of 2.25 in. A square key 0.50 in. on a side connects the shaft to the hub of the gear, as shown in Figure P4-30. The kcy is made from SAE 1020 cold-drawn steel. Determine the required length of the key, L, to be sale for shear and bearing. Use a design factor of 2.0 based on yield for shear and the AIISC allowable bearing stress.


Extracted text: Shear plane Hub Shaft Key 7. Shear area A,=bxL