Roller chain is used in both precision and non-precision applications in specialized industries and power transmission design operations. Roller chain configurations include standard, heavy, non-standard, extended pitch, multiple strand, standard attachment, and more. There are five components to roller chain, the pin plate, the pins, the roller link plate, the bushings, and the rollers. The service life of roller chain is determined by the tensile strength (breaking load) and working load capacity. Material types are steel, and stainless steel. Steel chain will provide maximum strength for tough, corrosion-free applications. Stainless steel chain provides moderate strength for more corrosive applications. Plating can be none or nickel-plated.