The Chain Sprocket is a profiled wheel with teeth, or cogs, that mesh with a chain, track or other perforated or indented material. The name sprocket applies generally to any wheel upon which radial projections engage a chain passing over it. Any type of machinery that is run by a chain drive uses sprockets as well. Sprockets and chains simply go hand in hand. Sprockets come in an array of sizes and styles to be used with specific types of chains. Chain Sprocket is critical that the right type of sprocket is used with a particular chain to ensure that it works properly and efficiently.