Dual-Row Sprocket Shaft Assembly

Construction & Materials

The entire assembly is manufactured from premium high-strength alloy steel, which undergoes a specialized heat-treatment process of carburizing, quenching, and tempering. This creates a hardened sprocket tooth surface (HRC 50–55) for exceptional wear resistance, paired with a tough, ductile core in the shaft that can withstand high torsional stress and impact loads. The precision-ground shaft surfaces feature a smooth, polished finish to reduce friction in bearing interfaces, while the sprocket teeth are protected by a natural oxide layer that retains lubricant, extending service life in harsh operating environments.

Design Features

Integrated Dual-Row Sprocket & Shaft: The one-piece design eliminates the need for separate sprocket-to-shaft mounting, ensuring perfect concentricity and torsional rigidity. This reduces backlash, minimizes vibration, and improves overall transmission efficiency compared to assembled systems.

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

Stepped Shaft Geometry: The multi-diameter shaft is engineered to accommodate bearings, seals, and other drivetrain components, providing precise axial and radial positioning. The smooth, polished journal surfaces reduce friction and wear in bearing interfaces, contributing to longer component life.

Performance & Applications

This dual-row sprocket shaft assembly 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.