The Igus A500SM-4044-50 is a type of energy chain system designed for the transport of cables and lines. It consists of an open-type, plastic modular chain link made of metal-reinforced, wear-resistant polymeric material. The chain links feature raised or plastic bevels on both sides for easy connection. The inner link diameter is 40 mm and the pitch of the links is 44 mm. This particular model has a length of 50 meters. Additionally, the chain links are equipped with maintenance-free plastic roller balls to minimize cable and line wear. The overall design helps to reliably protect cables and lines and reduce cable whip, snags, kinks, and noise.