See Figure P12–1. The shaft rotating at 550 rpm carries a spur gear B having 96 teeth with a diametral pitch of 6. The teeth are of the 20°, full-depth, involute form. The gear receives 30 hp from a pinion directly above it. Compute the torque delivered to the shaft and the tangential and radial forces exerted on the shaft by the gear.

Data in Figure P12–1.

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(a) Pictorial view of assembly A A Gear O B 10.00-10.00-6.00 B B C D 7 B -Gear B V-belt sheave 40° Section B-B Section A-A (b) Detailed views of assembly and its components