A 2-tooth left-hand worm transmits 3 4 hp at 600 rev/min
Chapter 13, Problem 13.53(choose chapter or problem)
A 2-tooth left-hand worm transmits 3 4 hp at 600 rev/min to a 36-tooth gear having a transverse diametral pitch of 8 teeth/in. The worm has a normal pressure angle of 20, a pitch diameter of 11 2 in, and a face width of 11 2 in. Use a coefficient of friction of 0.05 and find the force exerted by the gear on the worm and the torque input. For the same geometry as shown for Prob. 1351, the worm velocity is clockwise as viewed from the positive z axis.
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