A sprocket is a wheel with tooth, cogs, or even sprockets that mesh with the holes in the links of chain, monitor, or other perforated material. A sprocket is different from a gear because a sprocket by no means meshes straight with another sprocket. Sprockets are designed to be used with a particular chain. Choosing the right sprocket optimizes sprocket/chain conversation, ensures drive planetary gearbox overall performance, and decreases maintenance.