Gear Train

A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage.

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Source: Wikipedia · Image: Wikimedia Commons · Public domain

LEVERLAB

How things move — simple machines, mechanics, and hands-on STEM.

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Museum entries, images, and facts are drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses.