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Worm gears are used when large equipment reductions are needed. It is common for worm gears to have got reductions of 20:1, and actually up to 300:1 or greater.

Many worm gears have a fascinating property that no additional gear arranged has: the worm can simply turn the gear, however the gear cannot turn the worm. This is because the angle on the worm is Greenhouse Gear box indeed shallow that when the gear attempts to spin it, the friction between your gear and the worm retains the worm set up.

This feature is useful for machines such as for example conveyor systems, where the locking feature can act as a brake for the conveyor when the motor is not turning. An added very interesting usage of worm gears is certainly in the Torsen differential, which is utilized on some high-performance cars and trucks.