ANSI Simplex Roller Chain — Reliable Drive Power for #25 to #80 Applications When a worn or undersized drive chain causes slippage, noise, or unexpected downtime, the right replacement makes all the difference. Whether you are a hobbyist maintaining a go-kart, a fabricator building a conveyor, or a technician servicing agricultural equipment, this ANSI simplex roller chain delivers consistent pull and long service life across a wide range of loads. Each chain is a single-strand (simplex) roller chain manufactured to ANSI/ISO standards. Available models span #25 (04C-1) through #80 (16A-1) plus metric 05B-1, covering pitches from 1/4 inch (6.35 mm) up to 1 inch (25.4 mm). Cut lengths are offered in 0.5 m, 1.524 m (5 ft), and 5 m coils to suit both short repair jobs and longer drive runs. Typical use cases include go-kart and mini-bike final drives (#35 / #40), light conveyor and feeder systems (#40 / #50), agricultural machinery power take-offs (#50 / #60), and industrial gearbox output drives (#60 / #80). Long-tail search terms such as "ANSI #40 roller chain by the foot" and "replacement #35 chain for go-kart" describe exactly what this listing covers. 🔗 Compatibility: Fits standard ANSI / ISO sprockets matching the selected chain model and pitch. Verify sprocket tooth profile (simplex / single-strand) before ordering. ✅ Key Features of These ANSI Simplex Roller Chains 📐 Wide Model Range — #25, #35, #40, #50, #60, #80 ANSI and metric 05B-1 in one listing; select the exact model and pitch you need. 📏 Flexible Cut Lengths — Choose 0.5 m for quick repairs, 1.524 m (5 ft) for standard drive runs, or 5 m coils for longer installations. ⚙️ ANSI / ISO Dimensional Compliance — Pitch, roller diameter, and plate width conform to ANSI B29.1 / ISO 606 standards for drop-in sprocket compatibility. 🛡️ Hardened Rollers & Pins — Heat-treated components resist wear under cyclic loading, extending chain life in continuous-duty conveyor and drive applications. 🔩 Pre-lubricated Links — Factory-applied lubricant on inner plates and bushings reduces break-in wear and supports immediate installation. 🔄 Simplex (Single-Strand) Design — Compact profile fits tight sprocket centres; pairs with standard single-strand sprockets for straightforward drive design. 📐 Technical Specifications — ANSI Simplex Roller Chain Chain Standard ANSI B29.1 / ISO 606 Strand Configuration Simplex (single-strand) Available Models #25 (04C-1), #35 (06C-1), #35 (06B-1), #40 (08A-1), #40 (08B-1), #50 (10A-1), #60 (12A-1), #80 (16A-1), 05B-1 Pitch Range 6.35 mm (1/4") — 25.4 mm (1") | 8 mm metric Available Lengths 0.5 m / 1.524 m / 5 m Roller Diameter See variant options Inner Plate Width See variant options Tensile Strength See variant options Material Carbon steel (heat-treated rollers, pins, and bushings) Finish Natural / lightly oiled Weight per Meter See variant options Connection Link Contact us to confirm ❓ Frequently Asked Questions How do I choose the right chain model for my application? Match the chain model to your existing sprocket. The model number (e.g., #40 / 08A-1) encodes the pitch and strand count. Measure the centre-to-centre distance between roller pins on your old chain — that is the pitch. Common pairings: #35 for go-karts and mini-bikes, #40 for light conveyors and small machinery, #50–#60 for heavier industrial drives. What is the difference between ANSI (#40) and ISO (08A-1) designations? Both refer to the same pitch (1/2 inch / 12.7 mm) but use different naming conventions. ANSI #40 is the North American standard; 08A-1 is the ISO/metric equivalent. Dimensional tolerances are nearly identical, so they are generally interchangeable on matching sprockets. Always verify the sprocket tooth profile before mixing standards. Can I connect two lengths together to make a longer chain? Yes. Use a standard connecting link (also called a master link) of the same model and pitch. The connecting link includes an outer plate, a clip or cotter pin, and two pins. Contact us to confirm the correct connecting link part number for your selected model. How corrosion-resistant are these chains? Standard carbon-steel simplex chains are lightly oiled from the factory, which provides short-term corrosion protection during storage and initial use. For outdoor, wet, or washdown environments, apply a chain lubricant rated for your conditions after installation. If you need stainless-steel or nickel-plated chains for harsh environments, contact us for availability. What tensile strength can I expect from each model? Tensile strength scales with pitch and model number. As a general reference: #25 chains are rated around 3.1 kN (700 lbf), #35 around 8 kN (1,800 lbf), #40 around 14 kN (3,100 lbf), #50 around 22 kN (5,000 lbf), #60 around 31 kN (7,000 lbf), and #80 around 58 kN (13,000 lbf). Confirm exact ratings for your specific variant before use in safety-critical applications. Which length option should I order for a go-kart or mini-bike? Most go-kart and mini-bike rear drives use between 0.6 m and 1.2 m of chain depending on wheelbase and sprocket centre distance. The 1.524 m (5 ft) option gives you enough length to cut to size and still have spare links. Use a chain breaker tool to remove excess links and a master link to close the loop. Do these chains require lubrication after installation? Yes. While the chains arrive pre-lubricated, ongoing lubrication is essential for long service life. Apply a dedicated chain oil or spray lubricant to the inner plates and rollers at regular intervals — typically every 8–10 hours of operation for high-speed drives, or monthly for low-speed applications. Avoid using WD-40 as a long-term lubricant; it displaces moisture but does not provide lasting film protection. 🛒 Select your Model, Pitch, and Length above, then add to cart. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do I choose the right chain model for my application?", "acceptedAnswer": { "@type": "Answer", "text": "Match the chain model to your existing sprocket. The model number encodes the pitch and strand count. Measure the centre-to-centre distance between roller pins on your old chain — that is the pitch. Common pairings: #35 for go-karts and mini-bikes, #40 for light conveyors and small machinery, #50–#60 for heavier industrial drives." } }, { "@type": "Question", "name": "What is the difference between ANSI (#40) and ISO (08A-1) designations?", "acceptedAnswer": { "@type": "Answer", "text": "Both refer to the same pitch (1/2 inch / 12.7 mm) but use different naming conventions. ANSI #40 is the North American standard; 08A-1 is the ISO/metric equivalent. They are generally interchangeable on matching sprockets." } }, { "@type": "Question", "name": "Can I connect two lengths together to make a longer chain?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Use a standard connecting link (master link) of the same model and pitch. Contact us to confirm the correct connecting link part number for your selected model." } }, { "@type": "Question", "name": "How corrosion-resistant are these chains?", "acceptedAnswer": { "@type": "Answer", "text": "Standard carbon-steel simplex chains are lightly oiled from the factory. For outdoor or wet environments, apply a chain lubricant rated for your conditions after installation." } }, { "@type": "Question", "name": "What tensile strength can I expect from each model?", "acceptedAnswer": { "@type": "Answer", "text": "Tensile strength scales with model: #25 ~3.1 kN, #35 ~8 kN, #40 ~14 kN, #50 ~22 kN, #60 ~31 kN, #80 ~58 kN. Confirm exact ratings for safety-critical applications." } }, { "@type": "Question", "name": "Which length option should I order for a go-kart or mini-bike?", "acceptedAnswer": { "@type": "Answer", "text": "Most go-kart drives use 0.6–1.2 m of chain. The 1.524 m option gives enough length to cut to size with spare links. Use a chain breaker tool and a master link to close the loop." } }, { "@type": "Question", "name": "Do these chains require lubrication after installation?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Apply chain oil to inner plates and rollers regularly — every 8–10 hours for high-speed drives, or monthly for low-speed applications. Avoid WD-40 as a long-term lubricant." } } ] }
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