Double-Row Roller Chain Sprocket

This double-row roller chain sprocket is a rugged, precision-engineered component designed for high-torque power transmission in heavy-duty chain-driven systems. It is optimized to deliver reliable performance, withstand extreme loads, and maintain precise synchronization in industrial and mobile equipment applications.

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 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 bore ensures a secure, slip-free fit onto drive shafts.

Design Features

Dual-Row Tooth Profile: The two parallel rows of precision-machined teeth are designed to engage with a double-strand roller chain, distributing the load across a larger surface area. This configuration significantly increases the sprocket’s torque capacity and resistance to wear, making it ideal for heavy-duty applications where single-row sprockets are insufficient.

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 hub and dual-row tooth design ensures maximum concentricity and torsional rigidity, eliminating the risk of misalignment between rows that can cause chain fatigue or premature failure. The black oxide coating provides long-lasting protection against corrosion and wear.

Performance & Applications

This double-row roller chain sprocket excels in applications requiring high torque capacity and reliable power transmission, such as:

Heavy-duty industrial conveyor systems and material handling equipment

Agricultural machinery including tractor PTO systems, harvester drives, and grain elevators

Construction equipment like excavator and loader drivetrains

Mining and forestry machinery where extreme loads and harsh conditions are common

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.