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About Bandsaw Worm Gears

Worm gears are used when large gear reductions are needed. The set-up allows the user to determine rotational speed and also allows for higher torque to be transmitted. Many worm gears have an interesting property that no other gear set has: the worm can easily turn the gear, but the gear cannot turn the worm. This is because the worm angle is so shallow that when the gear tries to spin it, the friction between the gear and the worm holds the worm in place. The three different types of worm gear are: No throat –  a straight worm without a groove …

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