See Figure P12–5. The shaft rotating at 240 rpm carries a spur gear D having 48 teeth with a diametral pitch of 6. The teeth are of the 20°, full-depth, involute form. The gear receives 15 hp from pinion Q located as shown. Compute the torque delivered to the shaft and the tangential and radial forces exerted on the shaft by the gear. Resolve the tangential and radial forces into their horizontal and vertical components, and determine the net forces acting on the shaft at D in the horizontal and vertical directions. 

Data in Figure P12–5.

Transcribed Image Text:

B 12-in V-belt sheave A -30- 8-in spur gear, 20° FD 30° C Q- D Q drives D -10- E 30° E 6-in chain sprocket