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When a worn or broken connecting link brings your conveyor, drive shaft, or machinery to a halt, finding the right replacement fast is critical. These duplex roller chain connecting links are designed for engineers, maintenance technicians, and serious DIYers who need a dependable, drop-in solution across a wide range of chain sizes — from compact 06B up to heavy-duty 40B.
Each connecting link is manufactured from carbon steel with a zinc-plated or natural steel finish, providing solid corrosion resistance for typical workshop and light industrial environments. The duplex (double-strand) configuration means each link spans two parallel roller chain rows, maintaining alignment and load distribution. Available sizes span 06B through 40B (covering both A-series and B-series standards), with pitch dimensions ranging from approximately 9.525 mm (3/8 in) for 06B up to 50.8 mm (2 in) for 40B.
Typical applications include agricultural machinery chain drives, industrial conveyor systems requiring duplex roller chain connecting links for repair, power transmission equipment in manufacturing lines, and workshop fabrication projects needing ISO-standard roller chain links. Whether you are replacing a failed link on a grain elevator or assembling a custom drive system, these links deliver consistent fit and function.
| Chain Standard | ISO 606 / BS 228 |
|---|---|
| Chain Type | Duplex (Double-Strand) Roller Chain |
| Available Sizes | 06B, 06C, 08A, 08B, 10A, 10B, 12A, 12B, 16A, 16B, 20A, 20B, 24A, 24B, 28A, 28B, 32A, 32B, 40A, 40B |
| Pitch Range | 9.525 mm (3/8 in) — 50.8 mm (2 in), depending on size |
| Material | Carbon Steel |
| Finish | See variant options |
| Fastening Type | Spring clip or cotter pin (varies by size) |
| Strands | 2 (Duplex) |
| Breaking Load | See variant options |
| Weight per Link | See variant options |
| Quantity per Pack | 1 connecting link assembly |
Match the size designation on your existing chain — it is typically stamped on the side plate (e.g., 10A, 12B). The number indicates the pitch series and the letter indicates the series standard (A = ANSI-derived, B = British/ISO). Count the strands: duplex means two parallel rows. Select the matching size from the variant dropdown above.
A-series (e.g., 10A, 12A) follows dimensions closer to ANSI standards, while B-series (e.g., 10B, 12B) follows ISO 606 / British Standard dimensions. Although pitches are often identical, inner width and roller diameter can differ slightly. Always verify your chain's markings and measure the pitch before ordering to ensure a correct fit.
Yes. These links are manufactured from carbon steel to ISO 606 / BS 228 dimensional standards, making them suitable for industrial conveyor systems, agricultural drives, and power transmission equipment. For applications with specific minimum breaking load requirements, refer to the ISO 606 standard tables for your chain size, or contact us to confirm load ratings for your selected variant.
The carbon steel construction with zinc-plated finish provides moderate corrosion resistance suitable for typical indoor industrial and agricultural environments. For prolonged outdoor exposure, high-humidity conditions, or chemical environments, we recommend applying a chain lubricant regularly or considering stainless steel chain links for your application.
Each listing is for a complete connecting link assembly, which includes the outer plate, inner plate, two pins, and the retaining clip (spring clip or cotter pin depending on size). No additional hardware is required for installation — simply thread the pins through the chain ends, fit the outer plate, and secure the clip.
Yes. Connecting links are specifically designed to join two ends of roller chain — either to close a loop or to splice two chain lengths together. Ensure both chain ends are the same size and strand count (duplex) as the connecting link you select. Mismatched sizes will not seat correctly and can cause premature failure.
Each order includes 1 complete connecting link assembly for the size you select. If you need multiple links for a longer chain run or to keep spares on hand, simply increase the quantity before adding to cart.
