A double threaded right handed worm gear transmits 15 hp at 1150 rpm. The pitch of...
A double threaded right handed worm gear transmits 15 hp at 1150 rpm. The pitch of the worm is 0.75 inches and pitch diameter of 3 inches. The pressure angle is 14 1/2° and the coefficient of friction is 0.12. Find the worm gear efficiency.
Homework Answers
Given data
Power = 15 HP
N = 1150 rpm
p = 0.75 in; m = 1/p = 1.33 mm = 2
D1= 3 in = 76.2 mm
z1 = 38
Problem statement
the efficiency of the worm gear is to be determined
Analysis and calculation
l = 238.76
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A double threaded right handed worm gear transmits 15
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Find
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pitch circle diameter of the worm, the lead angle, the pitch
circumferential speed, and the tangential force component of the
worm(= Axial force component of the worm), slip
velocity(Coefficient friction=0.026), tangential force component of
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