{"product_id":"50-roller-chain-step-drive-sprocket-10t-60t-pitch-15-875mm-10a-chain","title":"#50 Roller Chain With Step Drive Sprocket 10T-60T Pitch 15.875mm For 10A Chain","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e#50 Step Drive Sprocket — Precision-Machined for 10A Roller Chain, 10T to 60T\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or mismatched sprocket is costing you chain life and drivetrain efficiency, the fix starts with the right tooth profile. Makers, fabricators, and mechanical hobbyists working with ANSI #50 roller chain need a sprocket that holds tight tolerances across every tooth — whether they're building a go-kart, a conveyor, a power-transmission rig, or a custom automation project.\u003c\/p\u003e\n\u003cp\u003eThese step drive sprockets are machined from carbon steel and finished to ANSI #50 \/ ISO 10A standards. The pitch is 15.875 mm (5\/8 in), matching the standard #50 chain link spacing exactly. Tooth counts run from 10T through 60T, covering a wide range of speed-ratio and torque requirements. Bore dimensions vary by tooth count — see variant options for exact bore and hub specs.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include go-kart and mini-bike final drives, industrial conveyor drive stations, DIY power-transmission builds requiring a #50 chain step-drive sprocket replacement, and custom gear-reduction assemblies where a specific tooth count is needed to hit a target RPM ratio.\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 Designed for ANSI #50 \/ ISO 10A roller chain — pitch 15.875 mm (5\/8 in), inner width 9.53 mm (3\/8 in). Not compatible with #40, #60, or other chain sizes.\n\u003c\/div\u003e\n\n\u003ch2\u003e✅ Key Features of These #50 Step Drive Sprockets\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e⚙️\u003c\/div\u003e\n\u003cstrong\u003eWide Tooth-Count Range\u003c\/strong\u003e\n\u003cp\u003eAvailable from 10T to 60T in a single product listing, letting you dial in your exact speed ratio without sourcing from multiple suppliers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e📐\u003c\/div\u003e\n\u003cstrong\u003eANSI #50 \/ ISO 10A Pitch Compliance\u003c\/strong\u003e\n\u003cp\u003e15.875 mm pitch machined to standard tolerances ensures smooth chain engagement and minimizes wear on both the sprocket and chain.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n\u003cstrong\u003eCarbon Steel Construction\u003c\/strong\u003e\n\u003cp\u003eMachined from carbon steel for the strength and wear resistance needed in continuous-duty drivetrain applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🎯\u003c\/div\u003e\n\u003cstrong\u003eStep Hub Design\u003c\/strong\u003e\n\u003cp\u003eThe stepped hub profile provides a positive axle seating surface, reducing lateral movement and keeping the chain aligned under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔄\u003c\/div\u003e\n\u003cstrong\u003eBroad Application Fit\u003c\/strong\u003e\n\u003cp\u003eSuited for go-karts, mini-bikes, conveyors, power-transmission rigs, and custom automation builds wherever a #50 chain drive is used.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e📦\u003c\/div\u003e\n\u003cstrong\u003eSingle-Piece Quantity Option\u003c\/strong\u003e\n\u003cp\u003eSold individually (1 pcs per order) so you can replace exactly the sprocket you need without buying in bulk.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003ch2\u003e📐 Technical Specifications — #50 Step Drive Sprocket\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\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\u003e15.875 mm (5\/8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Inner Width\u003c\/th\u003e\n\u003ctd\u003e9.53 mm (3\/8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count Range\u003c\/th\u003e\n\u003ctd\u003e10T – 60T (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Style\u003c\/th\u003e\n\u003ctd\u003eStep Drive\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\u003eHub Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Length\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\u003eSurface Finish\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 pcs\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 tooth count for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYour tooth count determines the drive ratio between your driver and driven sprocket. Divide the driven sprocket teeth by the driver sprocket teeth to get the reduction ratio. For example, a 10T driver paired with a 40T driven sprocket gives a 4:1 reduction. Match your target output RPM and torque to select the correct combination.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWill this sprocket fit my existing #50 roller chain?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — these sprockets are machined to ANSI #50 \/ ISO 10A specifications with a 15.875 mm (5\/8 in) pitch. They are compatible with any standard #50 roller chain. They are not compatible with #40 (12.7 mm pitch) or #60 (19.05 mm pitch) chains.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat bore size does each sprocket have?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBore diameter varies by tooth count. Please refer to the variant options or contact us to confirm the bore size for your specific tooth count before ordering. If you need a custom bore, a machine shop can typically enlarge a standard bore to your shaft diameter.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs this sprocket strong enough for go-kart or mini-bike use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Carbon steel construction provides the tensile strength and surface hardness needed for go-kart final drives and mini-bike applications running standard #50 chain. Ensure your chain tension and alignment are correctly set to maximize sprocket service life.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I prevent corrosion on this sprocket?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCarbon steel sprockets benefit from regular lubrication with a chain-compatible oil or grease. For outdoor or high-moisture environments, applying a rust-inhibiting lubricant and keeping the chain properly tensioned will significantly extend service life. If corrosion resistance is a primary requirement, consider a stainless steel or zinc-plated alternative.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this sprocket on a conveyor system?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. These step drive sprockets are well-suited for light-to-medium duty conveyor drive stations using #50 roller chain. Confirm that your conveyor's shaft diameter matches the available bore size for your chosen tooth count before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a step drive sprocket and a standard sprocket?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA step drive sprocket features a stepped hub profile — the hub diameter changes in a stepped fashion rather than being a simple flat plate or uniform cylinder. This stepped geometry provides a positive axle seating surface that helps resist lateral chain movement and keeps the sprocket centered on the shaft under load.\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 tooth count (Types) above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"#50-10T \/ 1pcs","offer_id":52423398654226,"sku":"FXL1236-0","price":10.59,"currency_code":"USD","in_stock":true},{"title":"#50-11T \/ 1pcs","offer_id":52423398686994,"sku":"FXL1236-1","price":11.82,"currency_code":"USD","in_stock":true},{"title":"#50-12T \/ 1pcs","offer_id":52423398719762,"sku":"FXL1236-2","price":14.4,"currency_code":"USD","in_stock":true},{"title":"#50-13T \/ 1pcs","offer_id":52423398752530,"sku":"FXL1236-3","price":17.26,"currency_code":"USD","in_stock":true},{"title":"#50-14T \/ 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