{"product_id":"50-flat-chain-drive-sprocket-10t-40t-pitch-5-8-for-50-10a-roller-chain","title":"#50 Flat Chain Drive Sprocket 10T - 40T Pitch 5\/8\" For #50 10A Roller Chain","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e#50 Roller Chain Sprocket — Precision Flat Drive Sprocket for 5\/8\" Pitch Chain\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or undersized sprocket causes chain skip, premature wear, or misalignment in your drive system, the fix starts with a correctly matched component. These #50 flat chain drive sprockets are engineered for makers, mechanics, and DIY builders who need a reliable, drop-in solution for ANSI #50 (10A) roller chain applications — from go-kart builds to industrial conveyor retrofits.\u003c\/p\u003e\n\u003cp\u003eEach sprocket is machined from medium-carbon steel with a natural or lightly finished surface, available in tooth counts from 10T through 40T to suit a wide range of gear ratios. The bore diameter and hub dimensions vary by tooth count; refer to variant options for exact measurements. The 5\/8\" (15.875 mm) pitch matches the ANSI #50 \/ ISO 10A chain standard precisely.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include go-kart and mini-bike drive systems requiring a #50 sprocket replacement, small conveyor and power-transmission builds where a flat sprocket profile saves axial space, and custom reduction drives in robotics, agricultural equipment, and shop-built machinery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e \u003cstrong\u003eCompatible with:\u003c\/strong\u003e ANSI #50 \/ ISO 10A Roller Chain — 5\/8\" (15.875 mm) pitch, 3\/8\" (9.525 mm) roller diameter\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These #50 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\u003eANSI #50 \/ ISO 10A Standard Pitch\u003c\/strong\u003e\n\u003cp\u003e5\/8\" (15.875 mm) pitch matches all standard #50 roller chain, ensuring zero-clearance tooth engagement and smooth power transfer without chain slap or skip.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eWide Tooth-Count Range: 10T to 40T\u003c\/strong\u003e\n\u003cp\u003e21 tooth-count options from 10T through 40T let you dial in the exact gear ratio your drive system needs — whether you're building a fast go-kart or a slow-speed conveyor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e \u003cstrong\u003eFlat Hub Profile\u003c\/strong\u003e\n\u003cp\u003eThe flat (type A) hub design minimizes axial footprint, making these sprockets ideal for space-constrained assemblies where a flanged or extended hub would interfere with adjacent components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eMedium-Carbon Steel Construction\u003c\/strong\u003e\n\u003cp\u003eMachined from medium-carbon steel for a balance of hardness and toughness — resists tooth deformation under load while remaining machinable for custom bore modifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003ePrecision-Machined Tooth Profile\u003c\/strong\u003e\n\u003cp\u003eCNC-machined tooth geometry conforms to ANSI B29.1 tolerances, delivering consistent chain seating across all tooth counts and extending both chain and sprocket service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eSold Individually or as a Set\u003c\/strong\u003e\n\u003cp\u003eAvailable in 1PCS quantity so you can replace a single worn sprocket or mix tooth counts to build a custom drive ratio without purchasing unnecessary extras.\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 — #50 Roller Chain Sprocket\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eANSI #50 \/ ISO 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Pitch\u003c\/th\u003e\n\u003ctd\u003e5\/8\" (15.875 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoller Diameter (chain)\u003c\/th\u003e\n\u003ctd\u003e3\/8\" (9.525 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count\u003c\/th\u003e\n\u003ctd\u003e10T, 11T, 12T, 13T, 14T, 15T, 16T, 17T, 18T, 19T, 20T, 31T–40T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSprocket Type\u003c\/th\u003e\n\u003ctd\u003eFlat \/ Type A (no hub)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eMedium-carbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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\u003eThickness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\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 know which tooth count to choose?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYour gear ratio equals the driven sprocket tooth count divided by the drive sprocket tooth count. For example, pairing a 10T drive sprocket with a 20T driven sprocket gives a 2:1 reduction — the output shaft turns at half the speed of the input. Choose a smaller tooth count on the drive side for more torque, or a larger count for higher speed. If you're replacing an existing sprocket, count the teeth on the worn part or check your original equipment specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these sprockets fit my #50 roller chain?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These sprockets are machined to ANSI #50 \/ ISO 10A specifications with a 5\/8\" (15.875 mm) pitch and 3\/8\" (9.525 mm) roller diameter. Any standard #50 or 10A roller chain will seat correctly on these sprockets. If your chain is labeled #50, 50-1, or 10A, it is compatible.\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 and is listed in the variant detail page for each size. If you need a custom bore, the medium-carbon steel construction allows machining to a specific shaft diameter. We recommend confirming the listed bore before ordering if your shaft size is non-standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these sprockets suitable for go-kart or mini-bike use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The #50 chain standard is one of the most common specifications for go-karts, mini-bikes, and small engine-driven vehicles. The flat hub profile keeps the sprocket close to the axle bearing, reducing bending moment. Tooth counts in the 10T–20T range are typical for drive sprockets on these applications, while 30T–40T are common for driven (rear axle) sprockets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I prevent premature sprocket wear?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThree factors extend sprocket life significantly: (1) always replace the chain and both sprockets together when either shows wear — a worn chain accelerates sprocket tooth erosion; (2) maintain proper chain tension — a slack chain causes impact loading on tooth flanks; (3) lubricate the chain regularly with a dedicated roller chain lubricant to reduce metal-to-metal contact at the roller-tooth interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these sprockets on a conveyor or power-transmission application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The flat type-A profile and ANSI-standard tooth geometry make these sprockets well-suited for light-to-medium duty conveyor drives, agricultural equipment, and shop-built power-transmission systems. For continuous-duty or high-load applications, verify that the selected tooth count and bore size match your shaft and load requirements, and consider a lubrication system to maximize service intervals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need any special tools to install this sprocket?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eInstallation typically requires a shaft key and set screw (or a custom bore with keyway) to secure the sprocket to the shaft, plus a chain breaker tool if you need to shorten or join the roller chain. No special sprocket-specific tooling is required. Ensure the sprocket is aligned with the mating sprocket within 1–2 mm of lateral offset to prevent uneven chain wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your sprocket type (tooth count) above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"#50 10T \/ 1PCS","offer_id":52423395082514,"sku":"GYJLTSHXJZC1632x1","price":8.96,"currency_code":"USD","in_stock":true},{"title":"#50 11T \/ 1PCS","offer_id":52423395115282,"sku":"GYJLTSHXJZC1633x1","price":11.6,"currency_code":"USD","in_stock":true},{"title":"#50 12T \/ 1PCS","offer_id":52423395148050,"sku":"GYJLTSHXJZC1634x1","price":13.3,"currency_code":"USD","in_stock":true},{"title":"#50 13T \/ 1PCS","offer_id":52423395180818,"sku":"GYJLTSHXJZC1635x1","price":15.64,"currency_code":"USD","in_stock":true},{"title":"#50 14T \/ 1PCS","offer_id":52423395213586,"sku":"GYJLTSHXJZC1636x1","price":16.84,"currency_code":"USD","in_stock":true},{"title":"#50 15T \/ 1PCS","offer_id":52423395246354,"sku":"GYJLTSHXJZC1637x1","price":18.63,"currency_code":"USD","in_stock":true},{"title":"#50 16T \/ 1PCS","offer_id":52423395279122,"sku":"GYJLTSHXJZC1638x1","price":20.93,"currency_code":"USD","in_stock":true},{"title":"#50 17T \/ 1PCS","offer_id":52423395311890,"sku":"GYJLTSHXJZC1639x1","price":23.92,"currency_code":"USD","in_stock":true},{"title":"#50 18T \/ 1PCS","offer_id":52423395344658,"sku":"GYJLTSHXJZC1640x1","price":26.91,"currency_code":"USD","in_stock":true},{"title":"#50 19T \/ 1PCS","offer_id":52423395377426,"sku":"GYJLTSHXJZC1641x1","price":29.91,"currency_code":"USD","in_stock":true},{"title":"#50 20T \/ 1PCS","offer_id":52423395410194,"sku":"GYJLTSHXJZC1642x1","price":32.84,"currency_code":"USD","in_stock":true},{"title":"#50 31T \/ 1PCS","offer_id":52423395442962,"sku":"GYJLTSHXJZC1699x1","price":66.5,"currency_code":"USD","in_stock":true},{"title":"#50 32T \/ 1PCS","offer_id":52423395475730,"sku":"GYJLTSHXJZC1700x1","price":71.74,"currency_code":"USD","in_stock":true},{"title":"#50 33T \/ 1PCS","offer_id":52423395508498,"sku":"GYJLTSHXJZC1701x1","price":81.37,"currency_code":"USD","in_stock":true},{"title":"#50 34T \/ 1PCS","offer_id":52423395541266,"sku":"GYJLTSHXJZC1702x1","price":78.38,"currency_code":"USD","in_stock":true},{"title":"#50 35T \/ 1PCS","offer_id":52423395574034,"sku":"GYJLTSHXJZC1703x1","price":85.11,"currency_code":"USD","in_stock":true},{"title":"#50 36T \/ 1PCS","offer_id":52423395606802,"sku":"GYJLTSHXJZC1704x1","price":85.95,"currency_code":"USD","in_stock":true},{"title":"#50 37T \/ 1PCS","offer_id":52423395639570,"sku":"GYJLTSHXJZC1705x1","price":96.72,"currency_code":"USD","in_stock":true},{"title":"#50 38T \/ 1PCS","offer_id":52423395672338,"sku":"GYJLTSHXJZC1706x1","price":113.23,"currency_code":"USD","in_stock":true},{"title":"#50 39T \/ 1PCS","offer_id":52423395705106,"sku":"GYJLTSHXJZC1707x1","price":102.56,"currency_code":"USD","in_stock":true},{"title":"#50 40T \/ 1PCS","offer_id":52423395737874,"sku":"GYJLTSHXJZC1708x1","price":113.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of8_f46d5ea5-b574-432d-87bf-5753abd12869.jpg?v=1782825124","url":"https:\/\/homediyer.com\/products\/50-flat-chain-drive-sprocket-10t-40t-pitch-5-8-for-50-10a-roller-chain","provider":"HomeDIYer","version":"1.0","type":"link"}