See Figure P12-2. The shaft rotating at 200 rpm carries a spur gear C having 80 teeth with a
diametral pitch of 8. The teeth are of the 20°, full-depth, involute form. The gear delivers 6 hp
to a pinion directly below it. Compute the torque delivered by the shaft to gear C and the
tangential and radial forces exerted on the shaft by the gear.
B
C
DE
-10-
20-in dia.
flat-belt
pulley
A
10-in dia.
spur gear
20°FD
C drives Q
FIGURE P12-2 (Problems 2, 12, 13, and 23)
-6-in dia.
chain sprocket