Estimate the existing safety factor based on surface fatigue (pitting).

1.For the gearset specifications of  do the following:

a. Using the AGMA refined approach, calculate the surface fatigue contact stress for the meshing gear teeth.

b. If the proposed material for both gears is AISI 4620 steel, and the teeth are carburized and case hardened (not including the root fillet) to a hardness of approximately RC 60, maintaining the 99 percent reliability requirement, determine the AGMA surface fatigue strength (pitting resistance) for the carburized and case-hardened gear teeth.

c. Estimate the existing safety factor based on surface fatigue (pitting).