The guide rails for engineered plastic chains are usually made of 304 stainless steel with a good finish, MC nylon, or ultra-high molecular-weight polyethylene (UHMW). For steel chains, guide rails are made of plastic.
For heat-resistant and high-speed applications, make sure you consider the following points:
l When the chain operates within normal temperatures at high speeds, choose a guide rail that is made of carbon steel or stainless steel with polished, hard chrome-plating.
l When the chain operates in high temperatures, consider a polished stainless steel guide rail. Remember to allow for heat expansion, and fix only one end of the guide rail.
