Find the helix angle of the worm if the pitch of the worm gear is 12 mm and the pitch diameter is 50 mm.
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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 θ = 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.
Bevel gears are used to have a gear drive between two intersecting shafts. True or false?
Bevel gears are equivalent to rolling ________
Which of the gears has the highest contact ratio?
What is the working depth of the gear and the pinion of the bevel gears?
A pair of bevel gears is mounted on two intersecting shafts who have a shaft angle of 70°. The velocity ratio of the gears is 2. Find the pitch angles.
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