Which is of these is an advantage of worm gear?
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The distance between corresponding points on adjacent teeth measured along the direction of the axis is called ____________
The distance by which a helix advances along the axis of the gear for one turn around is called _____________
The angle at which the teeth are inclined to the normal of the axis of rotation is called _______________
What is the velocity ratio of worm gears?
Find the helix angle of the worm if the pitch of the worm gear is 12 mm and the pitch diameter is 50 mm.
Find the speed of the gear if the worm is a three start worm rotating at 500 rpm. The gear has 20 teeth.
For a two start worm gear having a pitch of 20 mm and a lead angle 12°, find the centre distance if the larger gear has 25 teeth.
Calculate the lead angle of the worm gear for maximum efficiency if ? = 90° and the coefficient of friction is 0.05.
Find the maximum efficiency if the lead angle is given to be 10° and the coefficient of friction is 0.07.
Calculate the maximum efficiency of the worm gears which have a friction angle of 0.06.