The figure shows a gear train composed of a pair of helical gears and a pair of straight-tooth bevel gears. Shaft 4 is the output of the train and delivers 6 hp to the load at a speed of 370 rev/min.

All gears have pressure angles of 20◦. If bearing E is to take both thrust load and radial load, whereas bearing F is to take only radial load, determine the force that each bearing exerts against shaft 4.