The principal benefit of worm gears is their potential to give higher reduction ratios and correspondingly substantial torque multipliers. They can also be utilized as reducers for reduced to medium velocity programs. Also, because their reduction ratio is dependent on the variety of tooth on the gear, they are more compact than other sorts of gears. Like good pitch leadscrews, worm gears are normally self-locking, making them best for hoisting and hoisting apps.

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