{"product_id":"simplex-roller-chains-04c-06b-08b-10a-12a-16a-20a-24a-transmission-chain","title":"Simplex Roller Chains 04C, 06B, 08B, 10A, 12A, 16A, 20A, 24A Transmission Chain","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eRoller Transmission Chain — Precision-Cut Simplex \u0026amp; Double Row for Every Drive System\u003c\/h2\u003e\n    \u003cp\u003eWhen a worn or undersized drive chain causes slippage, noise, or unexpected downtime, finding the right replacement in the correct pitch and length shouldn't be a second job. Whether you're a mechanical engineer specifying a conveyor upgrade, a workshop owner maintaining machinery, or a serious DIYer building a go-kart or bike drive system, these roller transmission chains are stocked in the most common ANSI\/ISO sizes so you can order exactly what you need.\u003c\/p\u003e\n    \u003cp\u003eEach chain is manufactured to ANSI\/ISO roller chain standards in both simplex (single-strand) and double-row (duplex) configurations. Available models span #25 (04C) through #120 (24A), covering pitches from 1\/4 inch (6.35 mm) up to 1.5 inch (38.1 mm). Lengths are offered in 0.5 m, 1 m, 1.5 m, 1.524 m (standard 5-foot loop), and 5 m cuts to minimize waste and reduce on-site cutting.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include roller chain conveyor systems for light industrial automation, go-kart and mini-bike drive chain replacement, agricultural equipment power transmission, and workshop machinery such as lathes, drill presses, and band saws requiring a reliable #40 or #50 drive chain.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard ANSI\/ISO sprockets matching the selected chain model and pitch. Verify sprocket tooth count and bore size before ordering. Simplex chains suit single-strand sprockets; double-row chains require duplex sprockets.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These Roller Transmission Chains\u003c\/h2\u003e\n    \u003cdiv class=\"hdiy-list\"\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cstrong\u003eWide Model Range\u003c\/strong\u003e\n        \u003cp\u003eCovers #25 (04C) to #120 (24A) — pitches from 6.35 mm to 38.1 mm — so one source handles light-duty bicycle-style drives through heavy industrial conveyor chains.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n        \u003cstrong\u003eSimplex \u0026amp; Double-Row Options\u003c\/strong\u003e\n        \u003cp\u003eChoose single-strand simplex for standard drives or duplex double-row for higher load capacity on the same sprocket center distance, without redesigning the drive layout.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n        \u003cstrong\u003ePre-Cut Lengths\u003c\/strong\u003e\n        \u003cp\u003eAvailable in 0.5 m, 1 m, 1.5 m, 1.524 m, and 5 m cuts — reducing scrap and saving time compared to buying full reels and cutting on-site.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n        \u003cstrong\u003eANSI\/ISO Dimensional Compliance\u003c\/strong\u003e\n        \u003cp\u003eManufactured to ANSI B29.1 \/ ISO 606 roller chain standards, ensuring interchangeability with sprockets and connecting links from any compliant supplier.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n        \u003cstrong\u003eHardened Pins \u0026amp; Rollers\u003c\/strong\u003e\n        \u003cp\u003eCase-hardened pins and precision-formed rollers reduce wear elongation and extend service intervals, particularly in dusty or lightly lubricated environments.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n        \u003cstrong\u003eConnecting Link Compatible\u003c\/strong\u003e\n        \u003cp\u003eEach length is supplied with open ends suitable for joining with a standard master link (connecting link) or offset link — no special tooling required for basic installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — Roller Transmission Chain\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eANSI B29.1 \/ ISO 606\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Models\u003c\/th\u003e\n\u003ctd\u003e#25 (04C), #35 (06B), #40 (08B), #50 (10A), #60 (12A), #80 (16A), #100 (20A), #120 (24A)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eSimplex (single-strand) or Double Row (duplex) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePitch Range\u003c\/th\u003e\n\u003ctd\u003e1\/4 in (6.35 mm) — 1.5 in (38.1 mm) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e0.5 m \/ 1 m \/ 1.5 m \/ 1.524 m \/ 5 m — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePin Material\u003c\/th\u003e\n\u003ctd\u003eCase-hardened alloy steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRoller Material\u003c\/th\u003e\n\u003ctd\u003eHardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePlate Material\u003c\/th\u003e\n\u003ctd\u003eCarbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003ePre-lubricated (light oil); periodic re-lubrication recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBreaking Load\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWeight per Meter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right chain model and pitch for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the chain model to your existing sprocket markings. The model number (e.g., #40 or 08B) is usually stamped on the sprocket hub or listed in the equipment manual. The pitch — the distance between pin centers — must match exactly. Common pairings: #25 (6.35 mm) for light conveyors and small drives; #35 (9.525 mm) for go-karts and mini-bikes; #40 (12.7 mm) for general machinery; #50–#80 for heavier industrial drives.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between simplex and double-row (duplex) chains?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA simplex chain has a single strand of rollers and fits a standard single-sprocket. A double-row (duplex) chain has two parallel strands sharing the same pins, roughly doubling the load capacity for the same pitch. Double-row chains require a matching duplex sprocket — they cannot be used on a standard simplex sprocket without modification.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhich length should I order, and can I cut the chain to a custom size?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure your required chain loop length (center-to-center distance × 2 + sprocket circumferences, or count existing links × pitch). Order the next length up from your calculated requirement. Roller chain can be shortened using a chain breaker tool to remove links, and an offset link or connecting link is used to close the loop. The 1.524 m (5 ft) option is a standard loop length common in many drive applications.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow corrosion-resistant are these chains, and can they be used outdoors?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese chains are manufactured from carbon and alloy steel with a light pre-lubrication coating. They are suitable for indoor and sheltered outdoor use. For exposed outdoor environments or wet\/washdown conditions, regular re-lubrication with a weather-resistant chain oil is strongly recommended. For highly corrosive environments (salt spray, chemical exposure), consider stainless steel chain variants — contact us to confirm availability.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre connecting links (master links) included, and what tools do I need?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe chain lengths are supplied as open-end cuts ready for joining. A standard connecting link (master link) matching your chain model is required to close the loop — these are sold separately. For installation and resizing, a roller chain breaker\/riveting tool is recommended for clean, reliable pin removal and pressing. Basic installation of a connecting link can be done with pliers and a flat-head screwdriver.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I maintain these chains to maximize service life?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eLubricate the chain regularly with a dedicated chain oil or SAE 30–40 motor oil applied to the inner link plates where the rollers contact the pins. Wipe off excess to prevent dirt accumulation. Check chain tension periodically — excessive sag accelerates wear on both chain and sprockets. Replace the chain when elongation (stretch) exceeds 1–2% of the original pitch length, measured over 12 or more links.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these chains as a direct replacement for OEM chains on branded equipment?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes, provided the OEM chain conforms to ANSI B29.1 or ISO 606 standards (which most industrial and agricultural OEM chains do). Verify the chain model number, pitch, and strand count against your equipment manual. ANSI and ISO chain dimensions are interchangeable within the same model number — e.g., an ANSI #40 and an ISO 08B share the same 12.7 mm pitch and are dimensionally compatible.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your Model, Pitch, and Length above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right chain model and pitch for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the chain model to your existing sprocket markings. The model number (e.g., #40 or 08B) is usually stamped on the sprocket hub or listed in the equipment manual. The pitch must match exactly. Common pairings: #25 (6.35 mm) for light conveyors; #35 (9.525 mm) for go-karts; #40 (12.7 mm) for general machinery; #50–#80 for heavier industrial drives.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between simplex and double-row (duplex) chains?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A simplex chain has a single strand of rollers and fits a standard single-sprocket. A double-row (duplex) chain has two parallel strands sharing the same pins, roughly doubling the load capacity. Double-row chains require a matching duplex sprocket.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which length should I order, and can I cut the chain to a custom size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure your required chain loop length and order the next length up. Roller chain can be shortened using a chain breaker tool, and a connecting link closes the loop. The 1.524 m (5 ft) option is a standard loop length common in many drive applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How corrosion-resistant are these chains, and can they be used outdoors?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These chains are suitable for indoor and sheltered outdoor use. For exposed outdoor or wet environments, regular re-lubrication with weather-resistant chain oil is strongly recommended. For highly corrosive environments, contact us to confirm stainless steel availability.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are connecting links (master links) included, and what tools do I need?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Chain lengths are supplied as open-end cuts. A standard connecting link matching your chain model is required to close the loop and is sold separately. A roller chain breaker\/riveting tool is recommended for resizing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I maintain these chains to maximize service life?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Lubricate regularly with chain oil or SAE 30–40 motor oil applied to the inner link plates. Check tension periodically and replace when elongation exceeds 1–2% of the original pitch length measured over 12 or more links.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these chains as a direct replacement for OEM chains on branded equipment?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, provided the OEM chain conforms to ANSI B29.1 or ISO 606 standards. Verify the chain model number, pitch, and strand count against your equipment manual. ANSI #40 and ISO 08B share the same 12.7 mm pitch and are dimensionally compatible.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"#25(04C) \/ 1\/4 inch (6.35 mm) \/ 0.5 Meter","offer_id":52423162462482,"sku":"GYJLTJGJXCD0025x1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"#25(04C) \/ 1\/4 inch (6.35 mm) \/ 1 Meter","offer_id":52423162495250,"sku":"GYJLTJGJXCD0026x1","price":7.89,"currency_code":"USD","in_stock":true},{"title":"#25(04C) \/ 1\/4 inch (6.35 mm) \/ 1.5 Meter","offer_id":52423162528018,"sku":"GYJLTJGJXCD0027x1","price":11.34,"currency_code":"USD","in_stock":true},{"title":"#25(04C) \/ 1\/4 inch (6.35 mm) \/ 5 Meter","offer_id":52423162560786,"sku":"GYJLTJGJXCD0028x1","price":35.21,"currency_code":"USD","in_stock":true},{"title":"#35(06B) - Simplex \/ 3\/8 inch(9.525 mm) \/ 1.524 Meter","offer_id":52423162593554,"sku":"GYJLTJGJXCD0029x1","price":26.96,"currency_code":"USD","in_stock":true},{"title":"#35(06B) - Double Row \/ 3\/8 inch(9.525 mm) \/ 1.524 Meter","offer_id":52423162626322,"sku":"GYJLTJGJXCD0030x1","price":42.05,"currency_code":"USD","in_stock":true},{"title":"#40(08B) - Simplex \/ 1\/2 inch (12.7 mm) \/ 1.524 Meter","offer_id":52423162659090,"sku":"GYJLTJGJXCD0031x1","price":34.2,"currency_code":"USD","in_stock":true},{"title":"#40(08B) - Double Row \/ 1\/2 inch (12.7 mm) \/ 1.524 Meter","offer_id":52423162691858,"sku":"GYJLTJGJXCD0032x1","price":66.26,"currency_code":"USD","in_stock":true},{"title":"#50(10A) - Simplex \/ 5\/8 inch(15.875 mm) \/ 1.524 Meter","offer_id":52423162724626,"sku":"GYJLTJGJXCD0033x1","price":49.75,"currency_code":"USD","in_stock":true},{"title":"#50(10A) - Double Row \/ 5\/8 inch(15.875 mm) \/ 1.524 Meter","offer_id":52423162757394,"sku":"GYJLTJGJXCD0034x1","price":96.72,"currency_code":"USD","in_stock":true},{"title":"#60(12A) - Simplex \/ 3\/4 inch (19.05 mm) \/ 1.524 Meter","offer_id":52423162790162,"sku":"GYJLTJGJXCD0035x1","price":72.49,"currency_code":"USD","in_stock":true},{"title":"#60(12A) - Double Row \/ 3\/4 inch (19.05 mm) \/ 1.524 Meter","offer_id":52423162822930,"sku":"GYJLTJGJXCD0036x1","price":140.49,"currency_code":"USD","in_stock":true},{"title":"#80(16A) - Simplex \/ 1 inch (25.4 mm) \/ 1.524 Meter","offer_id":52423162855698,"sku":"GYJLTJGJXCD0037x1","price":124.9,"currency_code":"USD","in_stock":true},{"title":"#80(16A) - Double Row \/ 1 inch (25.4 mm) \/ 1.524 Meter","offer_id":52423162888466,"sku":"GYJLTJGJXCD0038x1","price":244.75,"currency_code":"USD","in_stock":true},{"title":"#100(20A) - Simplex \/ 1.2 inch (31.75 mm) \/ 1.524 Meter","offer_id":52423162921234,"sku":"GYJLTJGJXCD0039x1","price":188.82,"currency_code":"USD","in_stock":true},{"title":"#120(24A) - Simplex \/ 1.5 inch (38.1 mm) \/ 1.524 Meter","offer_id":52423162954002,"sku":"GYJLTJGJXCD0041x1","price":268.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture6of10_1de6e320-b3ba-46d4-864e-292c3b2a01cb.jpg?v=1782570624","url":"https:\/\/homediyer.com\/products\/simplex-roller-chains-04c-06b-08b-10a-12a-16a-20a-24a-transmission-chain","provider":"HomeDIYer","version":"1.0","type":"link"}