Question

a double threaded worm drive is required for power transmission between two shaft having their axes at right angle to each other the worm has 14 1/2​

Answer 1

Answer:

A double threaded worm drive is required for power transmission between two shafts having their axes at right angles to each other. The worm has 14% involute teeth. The centre distance is approxi- mately 200 mm. If the axial pitch of the worm is 30 mm and lead angle is 23°, find 1. lead; 2. pitch cirele diameters of worm and worm gear; 3. helix angle of the worm, and 4. efficiency of the drive if the coefficient of friction is 0.05. Ans. 60 mm; 45 mm; 355 mm; 67° : 87.4% The worm in its place. One can also see the two cubic worm bearing blocks and the blg gear