The major edge of worm gears is their capability to give higher reduction ratios and correspondingly higher torque multipliers. They can also be used as reducers for lower to medium speed applications. Also, since their reduction ratio is based on the number of enamel on the equipment, they are a lot more compact than other types of gears. Like good pitch leadscrews, worm gears are generally self-locking, generating them best for hoisting and hoisting applications.

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