The offered Heavy Duty Sprocket and Shaft Assembly are made available by us for use in various industrial purposes. A sprocket or sprocket-wheel 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. The offered Assembly machine is made available by us for effective assembly of the parts. It is very useful and is easy to operate. The machine is made using high quality materials for use.