Dual-Row Roller Chain Sprocket with Pilot Hub

This dual-row roller chain sprocket with a pilot hub is a rugged, precision-engineered power transmission component designed for high-torque chain-driven systems. Its integrated pilot hub ensures precise alignment and secure mounting, making it ideal for applications where reliability and performance under heavy loads are critical.

Construction & Materials

The sprocket is manufactured from premium high-strength alloy steel, which 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 precision-machined pilot hub and smooth journal surfaces are polished to reduce friction in bearing interfaces, while the natural oxide layer on the teeth retains lubricant to extend service life in harsh, dusty, or damp environments.

Design Features

Dual-Row Tooth Profile: The two parallel rows of precision-machined teeth engage with a double-strand roller chain, distributing torque across a larger surface area to increase load capacity and reduce wear, making it suitable for heavy-duty applications.

Integrated Pilot Hub: The precision-machined pilot hub ensures a concentric, slip-free press fit onto drive shafts, eliminating the risk of misalignment that can cause chain fatigue or premature failure.

Precision Machining: 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.

Performance & Applications

This dual-row 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 and combine harvester drives

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 wear resistance makes it a dependable choice for critical systems where downtime is costly and performance is essential.