Triple-Row Roller Chain Sprocket

This triple-row roller chain sprocket is a rugged, high-performance component engineered for extreme-torque power transmission in heavy-duty chain-driven systems. Its three parallel rows of teeth are designed to distribute load across a larger surface area, making it ideal for applications where maximum torque capacity and reliability are critical.

Construction & Materials

Manufactured from high-strength alloy steel, the sprocket undergoes a specialized heat-treatment process of carburizing, quenching, and tempering. This creates a hardened tooth surface (HRC 50–55) for exceptional wear resistance, paired with a tough, ductile core that can withstand high impact loads and torsional stress. The entire component is finished with a durable black oxide coating, which provides enhanced corrosion protection, reduces friction during meshing, and helps retain lubricant to extend service life in harsh operating environments, including dusty, damp, or high-temperature conditions. The precision-machined central bore ensures a secure, slip-free fit onto drive shafts.

Design Features

Triple-Row Tooth Profile: The three parallel rows of precision-machined teeth engage with a triple-strand roller chain, distributing the torque load across multiple contact points. This configuration significantly increases the sprocket’s torque capacity and resistance to wear, making it suitable for the most demanding industrial applications.

Precision Machined Teeth: The teeth are cut to exact industry standards using CNC hobbing, ensuring a precise profile that meshes smoothly with the chain. This minimizes chain wear, reduces noise and vibration, and maintains consistent torque transfer even at high rotational speeds.

Robust One-Piece Construction: The integrated, monolithic design ensures maximum concentricity and torsional rigidity between the three rows of teeth, eliminating the risk of misalignment that can cause chain fatigue or premature failure. The black oxide coating provides long-lasting protection against corrosion and wear.

Performance & Applications

This triple-row roller chain sprocket excels in applications requiring the highest levels of torque capacity and reliability, such as:

Heavy-duty mining and forestry machinery

Large-scale industrial conveyor systems and material handling equipment

Agricultural machinery including combine harvesters and large tractor PTO systems

Construction equipment like excavator and loader drivetrains

Marine propulsion systems and offshore drilling equipment

Its combination of rugged construction, precision engineering, and corrosion resistance makes it a dependable choice for critical systems where downtime is costly and performance is essential.