A sprocket is a wheel with tooth, cogs, or even sprockets that mesh with the holes in the links of chain, track, or other perforated materials. A sprocket is different from a gear just because a sprocket by no means meshes straight with another sprocket. Sprockets are made to be utilized with a specific chain. Selecting the most appropriate sprocket planetary gearbox optimizes sprocket/chain conversation, ensures drive functionality, and decreases maintenance.