P6-2A

The gear set shown in the figure consists of three 20^degrees full-depth spur gears with a module of 6 mm and the following tooth numbers: N_1 = 20, N_2 = 60, and N_3 = 40. Gear 2 is an idler. The unit transmits 7.5 kW with the driveshaft to gear 1 rotating at 800 rpm CCW. Determine the following: The center distances; The rotational velocity (magnitude and direction) of each gear in rpm; The torque transmitted to each shaft; All forces (magnitude and direction) on each gear