worm gears
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Worm gearing explained
Worm gearing is a type of mechanical transmission that allows for high reduction ratios in a compact form, using a worm(resembling a screw) and a worm wheel (a helical gear). These systems are common in hoists, elevators, and applications where back-driving is undesirable. 1. Basic Components and Geometry A worm gear set consists of: Terminology: The lead angle…