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Worm Gear Speed Reducer

A worm gear set contains a screw-like driving gear, called the worm, and a mating spur gear that is used to drive a rotating piece of equipment. A worm gear set is capable of generating high torque with a low turning speed, producing a very high gear ratios. As a result, worm gear speed reducers are a very effective way to reduce shaft RPM from the input to the output of the gear set.