About 40B-3 Roller Chain

 40B‑3 is triple‑strand heavy‑duty roller chain conforming to ISO 606 B‑series standard. Built from high‑strength carbon steel, critical components are heat‑treated to achieve high tensile strength, outstanding fatigue and wear resistance.

Its three‑row structure greatly improves load capacity for demanding heavy‑duty transmission scenarios. Precision manufacturing ensures smooth chain meshing, low vibration and reliable operation. It is widely applied in conveyors, agricultural machinery and heavy‑industry equipment.

Custom cut‑to‑length and special attachment chains are available according to project requirements.

Metric 40B-3 Roller Chains  Dimension