The new D & L Sprocket cost about a third more than standard ANSI sprockets, but the price is worth it. We make them out of a harder material(1040 steel material) and they’re heat treatable. Depending on use, these new sprockets will last over five years, which is the normal of ANSI sprockets on smaller trailers. This new design, which has been added to D&L inventory, that’s been selling for years, has been in use on farm trailers since February 2008 with no problems. The new patented sprocket is designed to use more teeth pulling on the chain producing an  easier unload and smoother ride. The Power Tooth™ Sprocket  increases the life of the chain by decreasing the stress put on the chain.  Power Tooth™ Sprocket allows the chain to fit into the sprockets' pitch  better and thus reducing the movement and jumping of the chain that causes the chain to stretch and the pins to break. This will make the chain wear longer.