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When a worn or undersized drive chain causes slippage, skipped links, or premature sprocket wear, the entire mechanism suffers — whether it's a go-kart drivetrain, a light conveyor, or a custom-built automation rig. Makers, hobbyists, and repair technicians who need a dependable replacement or upgrade for compact drive systems will find the 03C simplex roller chain a precise, drop-in solution.
This listing covers a 03C simplex roller chain in a 1-metre (approx. 39.4 in) cut length, featuring a 4.7625 mm (3/16 in) pitch — the standard spacing for 03C-series sprockets. The chain is available in three finish options: Silver (natural steel), Black (oxidized or coated), and Gold (zinc or brass-tone plated), each sold individually (1PCS), in pairs (2PCS), or in packs of five (5PCS).
Typical applications include go-kart and mini-bike final drives, small conveyor indexing systems, RC vehicle scale drivetrains, clock and timing mechanism replacements, and compact power-transmission assemblies where a 03C-pitch sprocket is already installed.
| Chain Standard | 03C Simplex (Single-Strand) |
|---|---|
| Pitch | 4.7625 mm (3/16 in) |
| Length per Unit | 1 Metre (≈39.4 in) |
| Roller Diameter | See variant options |
| Inner Plate Height | See variant options |
| Pin Diameter | See variant options |
| Plate Thickness | See variant options |
| Finish / Color | Silver / Black / Gold (select variant) |
| Strand Type | Simplex (single row) |
| Quantity Options | 1PCS / 2PCS / 5PCS |
| Breaking Load | See variant options |
| Weight per Metre | See variant options |
The 03C designation refers to a 4.7625 mm (3/16 in) pitch — the center-to-center distance between consecutive roller pins. Measure your existing chain's pitch or check your sprocket's specification plate. If both confirm 03C / 4.7625 mm pitch, this chain will engage correctly. Also verify the sprocket's tooth profile is designed for a simplex (single-strand) chain.
Silver is a natural steel finish — the standard appearance for uncoated roller chain. Black typically indicates an oxidized or surface-treated finish that can offer mild corrosion inhibition and a low-visibility look. Gold suggests a zinc-plated or brass-tone coating that adds a layer of surface protection and a distinctive appearance. For outdoor or high-humidity environments, consider pairing any finish with a suitable chain lubricant.
Yes. Standard 03C connecting links (also called master links) allow you to join multiple strands end-to-end. Ensure you use a connecting link rated for 03C pitch. When ordering 2PCS or 5PCS, you receive separate 1 m lengths that can be joined with the appropriate master link hardware (sold separately).
The breaking load for 03C chain varies by manufacturer and material grade. As a general reference, standard 03C simplex chains typically have a minimum breaking load in the range of 1.8–2.5 kN (approximately 400–560 lbf). For your specific application's load requirements, please contact us to confirm the rated breaking load for the variant you are ordering.
All three finishes offer basic corrosion resistance when properly lubricated. For intermittent outdoor exposure, regular application of a chain-specific lubricant or light oil is recommended. For continuous wet or corrosive environments, consider stainless steel chain alternatives. The Black and Gold finishes may offer marginally better surface protection than bare Silver steel, but none of the variants are rated for submersion or highly corrosive chemical exposure.
Use a dedicated chain breaker tool sized for 03C pitch to press out a pin cleanly without damaging adjacent links. Count the links needed for your drive loop (accounting for center distance and any tensioner adjustment range), then break the chain at the correct link. Finish by installing a 03C master link to close the loop. Avoid using bolt cutters or grinding, as these methods can deform the plates and compromise chain integrity.
Choose 1PCS if you need a single replacement length for one drive. Select 2PCS if you are building a dual-axis system or want one spare on hand. The 5PCS pack offers the best per-unit value for workshop stock, multi-machine builds, or resale. All packs ship as individual 1 m lengths.
