OEM steel tooth hardened double strand sprockets

Maximize power transmission efficiency in confined spaces with our precision-engineered duplex sprockets, also known as double strand sprockets. Designed for parallel shaft drives where axial space is limited but high torque is required, these components are ideal for conveyors, gearboxes, industrial mixers, and heavy machinery. By allowing two chains to run side-by-side on a single sprocket, they provide a compact solution for synchronized multi-shaft drives, ensuring reliable performance for both OEM equipment and replacement maintenance.

Space-Saving Dual-Strand Design:

The integrated double-row configuration enables two separate chains to operate simultaneously from one component. This eliminates the need for two individual sprockets on a single hub, saving valuable axial space on your drive shaft while maintaining independent power paths to different machine sections.

Superior Load Distribution & Strength:

Manufactured from high-grade carbon steel (C45/1045) or alloy steel, our duplex sprockets feature precision-cut teeth that ensure even load sharing across both strands. The robust center web construction provides exceptional torsional rigidity, allowing the component to handle higher combined loads without deflection or premature failure.

Precision Machining for Synchronized Operation:

Using advanced CNC hobbing technology, we maintain exacting tooth spacing and phase alignment between the two rows. This guarantees that both chains engage simultaneously and smoothly, preventing timing errors in synchronized applications like indexing conveyors or multi-head drives.

Customizable Hub Configurations:

Available with various bore options including finished bore, pilot bore, or custom taper bore to suit your mounting requirements. We can also modify hub diameters, keyway sizes, and set screw positions to match specific shaft dimensions, reducing your need for field modifications.

Our duplex sprockets are manufactured under strict ISO9001 quality management systems, ensuring consistent dimensional accuracy and material integrity. We provide Material Test Reports (MTR) certifying chemical composition and mechanical properties for all alloy steel components. Products conform to RoHS environmental standards and meet ANSI and DIN tolerance requirements, making them suitable for export to North American, European, and Asian markets. Heat treatment processes are verified with hardness testing documentation.

Tooth Profile Accuracy:

Precision hobbed to ensure correct engagement with standard duplex roller chains, minimizing chordal action and vibration at operational speeds.

Inter-Row Alignment: Critical tolerance control between the two tooth rows ensures both chains run parallel without twisting or binding, extending chain life by up to 30 percent.

Surface Hardness:

Optional tooth hardening (45-55 HRC) provides enhanced wear resistance for high-load or abrasive environments while maintaining core toughness.

Hub Dimensions:

Customization hub extension on one or both sides to accommodate bearing placements or multi-sprocket configurations on a single shaft.

Concentricity:

Maintained within strict limits (typically IT8 grade or better) to minimize run-out and ensure smooth rotation at medium to high speeds.

We stand behind the durability of our duplex sprockets with a comprehensive 12-month warranty covering material and workmanship defects. Our technical support team offers expert assistance with selection, including center distance calculations and chain length recommendations for dual-strand systems. For volume orders, we provide pre-shipment samples for approval. We maintain stock of popular sizes for rapid delivery and offer spare parts support for custom-manufactured components. Our return policy ensures hassle-free resolution for any dimensional discrepancies, protecting your production timelines.