{"product_id":"gt2-timing-pulley-30-36-40-60t-5-10mm-bore-6mm-belt-3d-printer","title":"GT2 30\/36\/40\/60T Timing Pulley 5-10mm Bore 6mm Belt Width For 3D Printer Reprap","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eGT2 Timing Pulley — Precise Motion Control for 3D Printers \u0026amp; CNC Builds\u003c\/h2\u003e\n\u003cp\u003eWhen a skipped tooth or misaligned belt ruins a 20-hour print, the culprit is almost always a worn or undersized pulley. Makers, engineers, and Reprap builders who demand repeatable, backlash-free motion need a GT2 timing pulley that fits their exact shaft and belt without compromise.\u003c\/p\u003e\n\u003cp\u003eThese GT2 timing pulleys are machined from aluminum alloy with a smooth anodized finish. Each pulley is designed for standard 6mm-wide GT2 belts and is available in four tooth counts — 30T, 36T, 40T, and 60T — with bore sizes ranging from 5mm to 10mm (approximately 0.20\" to 0.39\"). A set screw secures the pulley to the motor shaft for a firm, slip-free grip.\u003c\/p\u003e\n\u003cp\u003eTypical applications include GT2 belt drive systems on FDM 3D printers such as Reprap, Ender, and Prusa-style machines, as well as lightweight CNC router axes, laser engraver gantries, and small-scale robotics requiring precise rotary-to-linear motion conversion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e✅\u003c\/span\u003e Compatible with standard 6mm GT2 open-loop and closed-loop belts. Fits motor shafts from 5mm to 10mm. Suitable for Reprap, Ender 3\/5, Prusa i3, and similar GT2-based motion systems.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These GT2 Timing Pulleys\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eMultiple Tooth Counts\u003c\/strong\u003e\n\u003cp\u003eChoose from 30T, 36T, 40T, or 60T to match your drive ratio and print speed requirements without modifying firmware constants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eWide Bore Range\u003c\/strong\u003e\n\u003cp\u003eAvailable in 5mm, 6.35mm, 7mm, 8mm, and 10mm bore diameters to fit NEMA 17 and other common stepper motor shaft sizes directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e \u003cstrong\u003eAluminum Alloy Construction\u003c\/strong\u003e\n\u003cp\u003eLightweight yet rigid aluminum body resists deformation under belt tension, maintaining tooth profile accuracy over extended use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eGT2 Profile Teeth\u003c\/strong\u003e\n\u003cp\u003ePrecision-cut GT2 tooth geometry ensures smooth belt engagement, low noise, and minimal backlash for accurate positional control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eSet Screw Shaft Lock\u003c\/strong\u003e\n\u003cp\u003eIntegrated set screw clamps the pulley firmly to the motor shaft, preventing slippage during rapid direction changes and high-speed moves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🖨️\u003c\/span\u003e \u003cstrong\u003e3D Printer \u0026amp; CNC Ready\u003c\/strong\u003e\n\u003cp\u003eDesigned for GT2 belt-driven motion systems including Reprap, Ender, Prusa, and lightweight CNC gantries requiring reliable linear motion.\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 — GT2 Timing Pulley\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Type\u003c\/th\u003e\n\u003ctd\u003eGT2 (2mm pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Width\u003c\/th\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count\u003c\/th\u003e\n\u003ctd\u003e30T \/ 36T \/ 40T \/ 60T (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e5mm \/ 6.35mm \/ 7mm \/ 8mm \/ 10mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft Lock\u003c\/th\u003e\n\u003ctd\u003eSet screw\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\u003eFlange\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eAnodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Belt\u003c\/th\u003e\n\u003ctd\u003eGT2 6mm open-loop \/ closed-loop belt\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 3D printer?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe tooth count determines your drive ratio and steps-per-mm value. Most Reprap and Ender-style printers use a 20T pulley as standard, but 30T, 36T, 40T, and 60T pulleys are used in custom builds or geared systems where a different mechanical advantage or resolution is needed. Always recalculate your steps\/mm in firmware after changing tooth count.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich bore size fits a NEMA 17 stepper motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard NEMA 17 stepper motors have a 5mm output shaft. Select the 5mm bore variant for a direct fit. If your motor has a D-shaft or flat, the set screw will lock onto the flat for a secure connection. The 6.35mm bore fits 1\/4\" shafts common in some US-spec motors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this pulley compatible with GT2 closed-loop belts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These pulleys are compatible with both GT2 open-loop (cut-to-length) and GT2 closed-loop belts, provided the belt width is 6mm and the pitch is 2mm. Verify the inner circumference of any closed-loop belt matches your axis travel requirements before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the aluminum pulley wear out quickly under continuous use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum GT2 pulleys are widely used in 3D printers and CNC machines for long-term operation. The GT2 belt does most of the wear absorption. Under normal 3D printing loads, aluminum pulleys typically outlast the belt itself. For high-torque or abrasive environments, inspect periodically for tooth wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this pulley on a laser engraver or CNC router?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. GT2 timing pulleys are a standard component in lightweight CNC routers and laser engraver gantry systems. Ensure your machine uses a 6mm GT2 belt and that the bore matches your motor shaft. Higher tooth counts (40T, 60T) provide more belt contact and smoother motion at lower speeds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I secure the pulley to the motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach pulley includes a set screw. Slide the pulley onto the motor shaft, align it with the motor face at the correct height, then tighten the set screw with a hex key (Allen wrench). If your shaft has a flat, align the set screw to the flat for maximum grip and to prevent rotation under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between 30T and 60T pulleys for the same application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA 60T pulley moves twice as much belt per revolution as a 30T pulley. This means lower torque multiplication but higher linear speed for the same motor RPM. In 3D printing, a larger pulley can reduce steps\/mm, which may smooth motion on some controllers. A smaller pulley (30T) gives finer resolution per step. Choose based on your firmware capability and desired print speed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Tooth count and Bore size above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"30T \/ 5mm","offer_id":52444055798034,"sku":"XQ3880-0","price":9.49,"currency_code":"USD","in_stock":true},{"title":"30T \/ 8mm","offer_id":52444055830802,"sku":"XQ3880-1","price":13.99,"currency_code":"USD","in_stock":true},{"title":"36T \/ 5mm","offer_id":52444055863570,"sku":"XQ3880-2","price":13.99,"currency_code":"USD","in_stock":true},{"title":"36T \/ 6.35mm","offer_id":52444055896338,"sku":"XQ3880-3","price":13.99,"currency_code":"USD","in_stock":true},{"title":"36T \/ 8mm","offer_id":52444055929106,"sku":"XQ3880-4","price":13.99,"currency_code":"USD","in_stock":true},{"title":"36T \/ 10mm","offer_id":52444055961874,"sku":"XQ3880-5","price":13.99,"currency_code":"USD","in_stock":true},{"title":"40T \/ 5mm","offer_id":52444055994642,"sku":"XQ3880-6","price":13.99,"currency_code":"USD","in_stock":true},{"title":"40T \/ 6.35mm","offer_id":52444056027410,"sku":"XQ3880-7","price":13.99,"currency_code":"USD","in_stock":true},{"title":"40T \/ 8mm","offer_id":52444056060178,"sku":"XQ3880-8","price":13.99,"currency_code":"USD","in_stock":true},{"title":"40T \/ 10mm","offer_id":52444056092946,"sku":"XQ3880-9","price":13.99,"currency_code":"USD","in_stock":true},{"title":"60T \/ 5mm","offer_id":52444056125714,"sku":"XQ3880-10","price":13.99,"currency_code":"USD","in_stock":true},{"title":"60T \/ 8mm","offer_id":52444056158482,"sku":"XQ3880-11","price":13.99,"currency_code":"USD","in_stock":true},{"title":"60T \/ 7mm","offer_id":52444056191250,"sku":"XQ3880-12","price":13.99,"currency_code":"USD","in_stock":true},{"title":"60T \/ 10mm","offer_id":52444056224018,"sku":"XQ3880-13","price":13.99,"currency_code":"USD","in_stock":true},{"title":"60T \/ 6.35mm","offer_id":52444056256786,"sku":"XQ3880-14","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-03_56387ca5-cb47-4f3c-bb63-08df52227cac.jpg?v=1783262330","url":"https:\/\/homediyer.com\/products\/gt2-timing-pulley-30-36-40-60t-5-10mm-bore-6mm-belt-3d-printer","provider":"HomeDIYer","version":"1.0","type":"link"}