Many applications are tough on roller chain, so this is where Nitro™ heavy duty roller chain is a great alternative to standard roller chain. Heavy duty roller chain uses thicker links plates to increase the overall strength & fatigue resistance. This allows the the chain to withstand moderate shock loads over longer periods of time without becoming fatigued. We stock a wide range of both single & double heavy series roller chain & links in several ANSI sizes. Some example uses for heavy duty chain is agricultural equipment, skid-steers, cement mixers, construction equipment and much more.