Determine the power-transmitting capacity for a pair of spur gears having 20° full-depth teeth, a diametral pitch of 6, 35 teeth in the pinion, 100 teeth in the gear, a face width of 2.00 in. and an AGMA quality class of 6. A gasoline engine drives the pinion at 1500 rpm. The gear drives a conveyor for crushed rock in a quarry. The pinion is made from AISI 1040 WQT 800. The gear is made from gray cast iron, ASTM A48-83. class 30. Design for 15 000 hr life.