Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When a worn or snapped drive chain brings your machinery, conveyor, or DIY power transmission project to a halt, finding the right replacement fast matters. This carbon steel 06B roller chain is designed for makers, maintenance engineers, and equipment owners who need a dimensionally accurate, industry-standard simplex chain — available as a full 1.524-metre length or as individual half links and full links for precise on-site sizing.
The 06B roller chain is a British Standard (BS) simplex chain with a pitch of 9.525 mm (3/8 in). Inner link plates, outer link plates, rollers, and pins are manufactured from carbon steel, with rollers typically ranging 6.35 mm (0.25 in) in diameter. The 1.524 m (5 ft) standard length contains approximately 160 pitches, while individual half links and full links allow you to fine-tune chain length without cutting.
Typical applications include light-duty conveyor drives, agricultural equipment, small engine power take-offs, go-kart and mini-bike drivetrains, and workshop machinery such as lathes and drill presses. Whether you are replacing a worn 06B chain on a vintage lathe or building a custom chain drive for a robotics project, the availability of individual connecting links makes length adjustment straightforward.
Conforms to BS/ISO 606 standard with a 9.525 mm (3/8 in) pitch, ensuring drop-in compatibility with any 06B-rated sprocket without modification.
Link plates, pins, and rollers are formed from carbon steel, delivering the tensile strength and wear resistance needed for continuous-duty drive applications.
Choose a full 1.524 m (5 ft) run for new installations, or select individual half links or full links to extend an existing chain or replace a single damaged section.
Accurately sized rollers seat cleanly into sprocket tooth profiles, reducing impact load at engagement and extending both chain and sprocket service life.
Standard spring-clip connecting links (half links) allow tool-free joining and removal in the field, making length adjustment and emergency replacement fast and straightforward.
Suited for conveyors, agricultural machinery, workshop equipment, go-karts, and custom power transmission builds where a 3/8 in pitch simplex chain is specified.
| Chain Standard | BS/ISO 606 — 06B Simplex |
|---|---|
| Pitch | 9.525 mm (3/8 in) |
| Roller Diameter | 6.35 mm (0.25 in) |
| Inner Width (between inner plates) | 5.72 mm (0.225 in) |
| Pin Diameter | See variant options |
| Plate Height | See variant options |
| Material | Carbon Steel |
| Finish | Natural / Lightly Oiled |
| Length (full chain variant) | 1.524 m (5 ft / approx. 160 pitches) |
| Link Type Options | Full Chain (1.524 m), Half Link (connecting link), Full Link (inner link) |
| Minimum Tensile Strength | See variant options |
| Working Load | See variant options |
The 06B Chain variant is a complete 1.524 m (5 ft) length of simplex roller chain, suitable for new installations or full replacements. The 06B Half Link is a spring-clip connecting link (also called a master link) used to join two chain ends together — one is needed every time you close a chain loop. The 06B Full Link is a standard inner link assembly used to add one pitch of length to an existing chain. Select the option that matches your specific repair or build requirement.
No. The 06B is a British Standard (BS/ISO 606) chain with a 9.525 mm pitch. While the pitch numerically matches ANSI 35 chain (also 9.525 mm pitch), the roller diameter, inner width, and plate dimensions differ between the two standards. Always verify that your sprocket is rated for BS 06B before ordering to avoid misalignment and accelerated wear.
Count the number of pitches (links) on your existing chain, or use the standard chain length formula: L = (2C/P) + (N+n)/2 + ((N−n)/2π)² × (P/C), where C is centre distance, P is pitch, N is the large sprocket tooth count, and n is the small sprocket tooth count. If your calculated length falls between whole pitches, use a half link to make up the difference. One 1.524 m length contains approximately 160 pitches of 9.525 mm.
BS 06B simplex roller chain typically has a minimum tensile strength in the range of 8.9 kN to 9.0 kN (approximately 2,000 lbf) per the BS/ISO 606 standard. Actual values depend on the specific manufacturing batch. For safety-critical applications, consult the product datasheet or contact us to confirm the rated load for the specific lot you are purchasing.
Yes. Like all roller chains, the 06B chain performs best when kept lubricated. For light-duty or intermittent use, periodic manual oiling with a SAE 30–40 weight chain oil applied to the inner link plates is sufficient. For continuous-duty or higher-speed applications, a drip oiler or oil bath system is recommended. Inspect the chain regularly for elongation (more than 3% stretch indicates replacement is due) and for cracked or deformed link plates.
Carbon steel roller chain will oxidise when exposed to moisture without adequate protection. For occasional outdoor use, keep the chain well-lubricated with a water-resistant chain lubricant or grease. For consistently wet or corrosive environments, consider a stainless steel or nickel-plated 06B chain variant instead. If you are unsure which specification suits your environment, contact us to confirm the best option.
Thread the connecting link pin through the aligned end links of both chain ends. Slide the outer plate over the protruding pin ends, then press the spring clip (circlip) into the grooves on the pin ends with the closed end of the clip facing the direction of chain travel. No special tools are required, though a pair of needle-nose pliers makes seating the clip easier. Always ensure the clip is fully seated before running the chain under load.
