{"product_id":"gt2-6mm-timing-belt-tooth-drive-pulley-16-20-30-32-36-40-48-60-80-bore-5-6-8-10","title":"GT2 6mm Timing Belt Tooth Drive Pulley 16 20 30 32 36 40 48 60 80 Bore 5 6 8 10","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eGT2 6mm Timing Belt Drive Pulley — Precise Motion Control for CNC, 3D Printers \u0026amp; Robotics\u003c\/h2\u003e\n\u003cp\u003eWhen your CNC router skips steps or your 3D printer loses positional accuracy, the culprit is often a mismatched or worn drive pulley. Engineers, makers, and automation builders who demand repeatable, low-backlash motion need a GT2 6mm timing belt drive pulley they can rely on across every axis and every build.\u003c\/p\u003e\n\u003cp\u003eThis listing covers GT2-profile 6mm-wide timing belt pulleys and matching open-loop belt. The pulleys are machined from aluminum alloy with a set-screw bore retention system. Tooth counts range from 16T to 80T, with bore diameters of 5 mm (~0.197 in), 6 mm (~0.236 in), 6.35 mm (~0.250 in \/ ¼ in), 8 mm (~0.315 in), and 10 mm (~0.394 in). The 2GT belt option is 6 mm wide with a 2 mm pitch. Select your exact combination from the variant options above.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include: DIY CoreXY and Cartesian 3D printer motion systems requiring GT2 6mm belt pulley sets; desktop CNC router X\/Y axis drives using aluminum timing pulley 2GT 6mm configurations; and lightweight robotic arm joints and pick-and-place automation where a low-tooth-count GT2 idler pulley or drive wheel keeps the footprint compact.\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 GT2 \/ 2GT profile timing belts, 6 mm belt width, 2 mm pitch — fits standard RepRap, Voron, Ender, and similar open-frame motion platforms.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These GT2 6mm Timing Belt Drive Pulleys\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eGT2 \/ 2GT Profile Teeth\u003c\/strong\u003e\n\u003cp\u003eEngineered to the GT2 (2GT) tooth profile standard, ensuring smooth meshing with 6 mm GT2 belts and minimizing backlash in both directions of travel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eWide Tooth-Count Selection (16T – 80T)\u003c\/strong\u003e\n\u003cp\u003eChoose from 16, 20, 30, 32, 36, 40, 48, 60, or 80 teeth to dial in your drive ratio. More teeth = larger pitch diameter = higher linear speed per motor revolution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🕳️\u003c\/span\u003e \u003cstrong\u003eMultiple Bore Sizes (5 \/ 6 \/ 6.35 \/ 8 \/ 10 mm)\u003c\/strong\u003e\n\u003cp\u003eFits the most common stepper and servo motor shaft diameters used in desktop CNC and 3D printing, including the standard ¼-inch (6.35 mm) shaft found on many NEMA 17 variants.\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 keeps rotational inertia low — critical for high-acceleration motion profiles — while maintaining dimensional stability under continuous operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eSet-Screw Bore Retention\u003c\/strong\u003e\n\u003cp\u003eEach pulley wheel includes a set screw for secure shaft clamping. Prevents slippage under load without requiring adhesives or press-fit tooling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eBelt + Pulley Available Together\u003c\/strong\u003e\n\u003cp\u003eThe 2GT Belt (Width 6mm) variant lets you source belt and pulleys in one order, simplifying BOM management for new builds or replacement kits.\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 Belt Pulley\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Profile\u003c\/th\u003e\n\u003ctd\u003eGT2 \/ 2GT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Width\u003c\/th\u003e\n\u003ctd\u003e6 mm (0.236 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch\u003c\/th\u003e\n\u003ctd\u003e2 mm (0.079 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count Options\u003c\/th\u003e\n\u003ctd\u003e16T, 20T, 30T, 32T, 36T, 40T, 48T, 60T, 80T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter Options\u003c\/th\u003e\n\u003ctd\u003e5 mm, 6 mm, 6.35 mm, 8 mm, 10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePulley Material\u003c\/th\u003e\n\u003ctd\u003eAluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Retention\u003c\/th\u003e\n\u003ctd\u003eSet screw\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\u003ePulley Width (hub + teeth)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (per pulley)\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\u003eNatural anodized \/ milled aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 pc per order (multi-pack options available)\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 build?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eTooth count determines the pitch diameter of the pulley, which directly affects your steps-per-mm (or steps-per-degree) calculation. Lower tooth counts (16T–20T) are common on NEMA 17-driven 3D printer axes for compact geometry. Higher tooth counts (40T–80T) are used where a larger pitch diameter is needed to increase linear speed or reduce motor torque requirements. Match your tooth count to your motion controller's configuration and desired resolution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich bore size fits a standard NEMA 17 stepper motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMost NEMA 17 stepper motors ship with a 5 mm output shaft. Select the 5 mm bore variant for a direct fit. Some motors — particularly those used in CNC spindle or extruder applications — use a 6 mm or 6.35 mm (¼ in) shaft; check your motor's datasheet before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this pulley compatible with standard GT2 belts from other suppliers?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The GT2 (2GT) tooth profile is an open industry standard. These pulleys are designed to mesh with any GT2-profile belt that is 6 mm wide with a 2 mm pitch, regardless of brand. This includes belts used on Creality Ender, Voron, RatRig, and similar platforms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong is the set-screw connection — will it slip under load?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe set screw provides adequate clamping force for typical desktop CNC and 3D printer torque loads when properly tightened against a flat on the motor shaft (if present). For high-torque or high-speed applications, ensure the set screw is tightened with the correct hex key and consider applying a small amount of thread-locking compound. Slippage is most common when the screw is under-torqued or the shaft has no flat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the aluminum construction resist corrosion in humid environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum alloy naturally forms a thin oxide layer that provides moderate corrosion resistance in typical indoor workshop or lab environments. For high-humidity or outdoor enclosures, an anodized finish (if present on your variant) adds additional protection. Avoid prolonged exposure to salt spray or strong acids.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these pulleys as idler pulleys (without a motor shaft)?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe wheel variants in this listing are drive pulleys with a bore designed to clamp onto a motor shaft via set screw. They are not pre-configured as idler pulleys (which typically use a smooth bore and a bearing). However, you can use them as idlers by inserting an appropriately sized bearing into the bore — check that your chosen bore diameter matches your bearing's outer race diameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Belt variant and the Wheel variants?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe \"2GT Belt【Width 6mm】\" variant is an open-loop GT2 timing belt (sold by length or as a fixed-length loop depending on stock). The \"Wheel\" variants are the aluminum drive pulleys in various tooth counts and bore sizes. For a complete drive system you need both a pulley (wheel) and a belt — you can add both to your cart from this listing.\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, bore size, and packing quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"2GT Belt【Width 6mm】 \/ 1pcs","offer_id":52444957933842,"sku":"LFLJSCS01828x1","price":3.39,"currency_code":"USD","in_stock":true},{"title":"Wheel【16T, 5MM Hole】 \/ 1pcs","offer_id":52444957966610,"sku":"LFLJSCS01820x1","price":2.54,"currency_code":"USD","in_stock":true},{"title":"Wheel【20T, 5MM Hole】 \/ 1pcs","offer_id":52444957999378,"sku":"LFLJSCS01821x1","price":2.6,"currency_code":"USD","in_stock":true},{"title":"Wheel【20T, 8MM Hole】 \/ 1pcs","offer_id":52444958032146,"sku":"LFLJSCS01819x1","price":2.6,"currency_code":"USD","in_stock":true},{"title":"Wheel【30T, 5MM Hole】 \/ 1pcs","offer_id":52444958064914,"sku":"LFLJSCS01823x1","price":3.77,"currency_code":"USD","in_stock":true},{"title":"Wheel【30T, 6.35MM Hole】 \/ 1pcs","offer_id":52444958097682,"sku":"LFLJSCS01822x1","price":3.77,"currency_code":"USD","in_stock":true},{"title":"Wheel【30T, 6MM Hole】 \/ 1pcs","offer_id":52444958130450,"sku":"LFLJSCS01825x1","price":3.77,"currency_code":"USD","in_stock":true},{"title":"Wheel【30T, 8MM Hole】 \/ 1pcs","offer_id":52444958163218,"sku":"LFLJSCS01838x1","price":3.77,"currency_code":"USD","in_stock":true},{"title":"Wheel【32T, 5MM Hole】 \/ 1pcs","offer_id":52444958195986,"sku":"LFLJSCS01840x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"Wheel【32T, 6MM Hole】 \/ 1pcs","offer_id":52444958228754,"sku":"LFLJSCS01834x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"Wheel【32T, 8MM Hole】 \/ 1pcs","offer_id":52444958261522,"sku":"LFLJSCS01836x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"Wheel【36T, 10MM Hole】 \/ 1pcs","offer_id":52444958294290,"sku":"LFLJSCS01827x1","price":4.08,"currency_code":"USD","in_stock":true},{"title":"Wheel【36T, 6MM Hole】 \/ 1pcs","offer_id":52444958327058,"sku":"LFLJSCS01830x1","price":4.08,"currency_code":"USD","in_stock":true},{"title":"Wheel【36T, 8MM Hole】 \/ 1pcs","offer_id":52444958359826,"sku":"LFLJSCS01832x1","price":4.08,"currency_code":"USD","in_stock":true},{"title":"Wheel【40T, 5MM Hole】 \/ 1pcs","offer_id":52444958392594,"sku":"LFLJSCS01829x1","price":4.61,"currency_code":"USD","in_stock":true},{"title":"Wheel【40T, 6MM Hole】 \/ 1pcs","offer_id":52444958425362,"sku":"LFLJSCS01824x1","price":4.61,"currency_code":"USD","in_stock":true},{"title":"Wheel【40T, 8MM Hole】 \/ 1pcs","offer_id":52444958458130,"sku":"LFLJSCS01826x1","price":4.61,"currency_code":"USD","in_stock":true},{"title":"Wheel【48T, 5MM Hole】 \/ 1pcs","offer_id":52444958490898,"sku":"LFLJSCS01818x1","price":4.92,"currency_code":"USD","in_stock":true},{"title":"Wheel【48T, 6MM Hole】 \/ 1pcs","offer_id":52444958523666,"sku":"LFLJSCS01839x1","price":4.92,"currency_code":"USD","in_stock":true},{"title":"Wheel【60T, 10MM Hole】 \/ 1pcs","offer_id":52444958556434,"sku":"LFLJSCS01837x1","price":6.3,"currency_code":"USD","in_stock":true},{"title":"Wheel【60T, 5MM Hole】 \/ 1pcs","offer_id":52444958589202,"sku":"LFLJSCS01841x1","price":6.46,"currency_code":"USD","in_stock":true},{"title":"Wheel【60T, 6MM Hole】 \/ 1pcs","offer_id":52444958621970,"sku":"LFLJSCS01835x1","price":6.3,"currency_code":"USD","in_stock":true},{"title":"Wheel【80T, 5MM Hole】 \/ 1pcs","offer_id":52444958654738,"sku":"LFLJSCS01831x1","price":8.15,"currency_code":"USD","in_stock":true},{"title":"Wheel【80T, 8MM Hole】 \/ 1pcs","offer_id":52444958687506,"sku":"LFLJSCS01833x1","price":8.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of8_82681d46-c991-4716-9743-d30e985bde7a.jpg?v=1783514789","url":"https:\/\/homediyer.com\/products\/gt2-6mm-timing-belt-tooth-drive-pulley-16-20-30-32-36-40-48-60-80-bore-5-6-8-10","provider":"HomeDIYer","version":"1.0","type":"link"}