{"product_id":"flat-chain-drive-sprocket-10-40t-pitch-19-05mm-for-60-12a-roller-chain-a3-steel","title":"Flat Chain Drive Sprocket 10-40T Pitch 19.05mm For #60 12A Roller Chain A3 Steel","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e12A Roller Chain Sprocket — Precision Flat Drive for #60 Chain, 10–40 Teeth\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or mismatched sprocket causes chain skip, premature wear, or unexpected downtime, the fix starts with the right tooth profile and pitch. Whether you're a maker building a go-kart, a technician maintaining a conveyor line, or a hobbyist upgrading a power transmission project, these 12A flat chain drive sprockets deliver the dimensional accuracy your drivetrain demands.\u003c\/p\u003e\n\u003cp\u003eEach sprocket is machined from A3 carbon steel and engineered to the ISO 606 \/ ANSI #60 standard with a pitch of 19.05mm (0.75 in). The tooth count range spans 10 to 40 teeth, with bore diameters that vary by model — typically 10–60mm (0.39–2.36 in) depending on the selected tooth count. The flat-plate (Type A) hub design keeps the profile compact and lightweight for space-constrained assemblies.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include small-to-medium industrial conveyor drives requiring a reliable 12A sprocket replacement, go-kart and mini-bike rear axle drive setups using #60 roller chain, and DIY automation rigs or agricultural equipment where a precise 19.05mm pitch chain drive sprocket is essential for consistent power transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for \u003cstrong\u003e#60 \/ 12A roller chain\u003c\/strong\u003e with a pitch of \u003cstrong\u003e19.05mm (3\/4 in)\u003c\/strong\u003e. Confirm your chain's pitch and bore requirement before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 12A Roller Chain Sprockets\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eA3 Carbon Steel Construction\u003c\/strong\u003e\n\u003cp\u003eMachined from A3 carbon steel for reliable tensile strength and wear resistance across demanding mechanical drive applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003e19.05mm Pitch — ISO 606 \/ ANSI #60 Compliant\u003c\/strong\u003e\n\u003cp\u003eTooth geometry and pitch conform to ISO 606 and ANSI #60 standards, ensuring accurate chain engagement and minimal vibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔢\u003c\/span\u003e \u003cstrong\u003eWide Tooth Count Selection: 10–40 Teeth\u003c\/strong\u003e\n\u003cp\u003eChoose from 31 tooth-count variants (10T through 40T) to dial in your exact gear ratio for speed or torque optimization.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🪶\u003c\/span\u003e \u003cstrong\u003eFlat-Plate (Type A) Hub Design\u003c\/strong\u003e\n\u003cp\u003eThe hubless flat-plate profile reduces overall assembly weight and axial length, ideal for compact drivetrain layouts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eConsistent Chain Wrap and Engagement\u003c\/strong\u003e\n\u003cp\u003ePrecision-cut tooth profiles maintain consistent chain wrap angle across the full tooth range, reducing chain fatigue and elongation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e \u003cstrong\u003eVersatile Across Drive Applications\u003c\/strong\u003e\n\u003cp\u003eSuitable for conveyors, go-karts, mini-bikes, agricultural machinery, and DIY automation projects requiring a dependable #60 chain sprocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — 12A Roller Chain Sprocket\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eISO 606 \/ ANSI #60 (12A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Pitch\u003c\/th\u003e\n\u003ctd\u003e19.05mm (3\/4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count Range\u003c\/th\u003e\n\u003ctd\u003e10T – 40T (31 variants)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eA3 Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Type\u003c\/th\u003e\n\u003ctd\u003eFlat Plate (Type A, hubless)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlate Thickness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural \/ Lightly oiled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Chain\u003c\/th\u003e\n\u003ctd\u003e#60 \/ 12A Roller Chain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right tooth count for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYour gear ratio is determined by dividing the driven sprocket's tooth count by the drive sprocket's tooth count. For higher speed, use a smaller driven sprocket relative to the driver. For more torque, use a larger driven sprocket. Select from 10T to 40T to achieve your target ratio. If you're replacing an existing sprocket, match the tooth count exactly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this sprocket compatible with #60 roller chain?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These sprockets are specifically designed for #60 \/ 12A roller chain with a 19.05mm (3\/4 in) pitch. They conform to ISO 606 and ANSI #60 standards. Do not use with #50, #80, or other pitch chains — pitch mismatch will cause rapid wear and chain failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat bore diameter does each sprocket have?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBore diameter varies by tooth count. Please refer to the variant options or contact us to confirm the bore size for your selected tooth count before ordering. If your shaft diameter requires a custom bore, a machine shop can typically re-bore the sprocket to your specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong is A3 carbon steel for drive applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA3 carbon steel (equivalent to ASTM A36 \/ S235) offers a tensile strength of approximately 370–500 MPa, making it well-suited for moderate-load chain drive applications such as conveyors, go-karts, and light industrial machinery. For heavy-duty or high-speed applications with significant shock loads, consider whether a hardened or alloy steel sprocket may be more appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this sprocket rust or corrode outdoors?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA3 carbon steel is not inherently corrosion-resistant. For outdoor or wet environments, we recommend applying a chain lubricant or anti-rust coating regularly. If long-term corrosion resistance is required, consider pairing with a stainless steel chain or applying a zinc\/epoxy coating after installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this sprocket on a go-kart or mini-bike?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The 12A \/ #60 chain standard is commonly used in go-kart and mini-bike rear axle drive systems. Select the tooth count that matches your desired top speed and torque balance. Ensure your axle shaft diameter matches the sprocket's bore, and verify the sprocket's outer diameter clears your frame and chain guard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a flat-plate (Type A) and hubbed sprocket?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA flat-plate (Type A) sprocket has no extended hub — the bore runs through a flat disc. This design is lighter and more compact axially, making it ideal for applications where space is limited. A hubbed sprocket has an extended cylindrical boss that provides more bearing surface and is better suited for cantilevered shaft loads. These sprockets are Type A (flat plate).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003etooth count (Models)\u003c\/strong\u003e above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"12A-10 Teeth \/ 1 Pcs","offer_id":52423336198418,"sku":"GLFBQLWGLBZSJ073236x1","price":25.5,"currency_code":"USD","in_stock":true},{"title":"12A-11 Teeth \/ 1 Pcs","offer_id":52423336231186,"sku":"GLFBQLWGLBZSJ073237x1","price":30.04,"currency_code":"USD","in_stock":true},{"title":"12A-12 Teeth \/ 1 Pcs","offer_id":52423336263954,"sku":"GLFBQLWGLBZSJ073238x1","price":35.29,"currency_code":"USD","in_stock":true},{"title":"12A-13 Teeth \/ 1 Pcs","offer_id":52423336296722,"sku":"GLFBQLWGLBZSJ073239x1","price":37.88,"currency_code":"USD","in_stock":true},{"title":"12A-14 Teeth \/ 1 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