A sprocket is a wheel with teeth, cogs, or even sprockets that mesh with the holes in the links of chain, track, or other perforated material. A sprocket is different from a gear because a sprocket never meshes directly with another sprocket. Sprockets are designed to be used with a specific chain. Choosing the right sprocket optimizes sprocket/chain interaction, ensures drive performance, and decreases maintenance.
Sprockets are characterized by type, which indicates hub style:
- Type A sprockets are flat and have no hub. - Type B sprockets have a hub on one side. - Type C sprockets are extended on both sides of the plate. - Type D sprockets use a type A sprocket mounted on a solid or split hub.