Double pitch roller chains according to DIN 8181 (ISO 1275) consist of the round parts (pins, bushes, rollers) used for simplex roller chains according to DIN 8187 (ISO 606) and double-pitched plates. Our double pitch roller chains can also be supplied as maintenance-free Marathon chains, in a stainless steel design, with bent attachments, straight attachments and extended pins. Special designs according to customers requirements are also available.