{"product_id":"2gt-2mm-pitch-timing-belt-pulleys-drive-pulley-16-20-25-30-60-tooth-fit-6mm-belt","title":"2GT 2mm Pitch Timing Belt Pulleys Drive Pulley 16 20 25 30 60 Tooth Fit 6mm Belt","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e2GT Timing Belt Pulleys — Precise 2mm Pitch Drive for CNC, 3D Printers \u0026amp; Robotics\u003c\/h2\u003e\n\u003cp\u003eWhen your motion-control build demands repeatable, backlash-free power transfer, a mismatched or worn pulley is the first thing that derails accuracy. Whether you are a maker upgrading a 3D printer, an engineer designing a CNC router, or a hobbyist assembling a belt-driven robot arm, these 2GT timing belt pulleys give you the exact tooth count and bore diameter you need without compromise.\u003c\/p\u003e\n\u003cp\u003eEach pulley is machined from aluminum alloy with a hard-anodized finish, featuring a 2mm pitch GT2 tooth profile. The tooth range spans 16T to 60T, and bore diameters run from 3.17mm (~0.125 in) up to 12mm (~0.47 in) to suit common motor shaft sizes. All variants are designed to fit 6mm wide 2GT\/GT2 timing belts.\u003c\/p\u003e\n\u003cp\u003eTypical applications include CoreXY and Cartesian 3D printer X\/Y axes, open-loop CNC pen plotters and laser engravers, lightweight robotic joint drives, and automated camera slider systems — anywhere a 2GT timing belt pulley with a precise tooth count is required for smooth, low-noise linear or rotary motion.\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 Fits \u003cstrong\u003e6mm wide 2GT \/ GT2 timing belts\u003c\/strong\u003e with \u003cstrong\u003e2mm pitch\u003c\/strong\u003e. Bore options: 3.17 \/ 4 \/ 5 \/ 6 \/ 8 \/ 10 \/ 12mm. Verify your motor shaft diameter before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These 2GT Timing Belt Pulleys\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🦷\u003c\/div\u003e\n\u003cstrong\u003eWide Tooth Count Selection\u003c\/strong\u003e\n\u003cp\u003eAvailable in 16T, 20T, 25T, 30T, 40T, and 60T configurations, covering low-torque high-speed and high-torque low-speed drive ratios for diverse motion-control applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n\u003cstrong\u003eMultiple Bore Diameters\u003c\/strong\u003e\n\u003cp\u003eBore options from 3.17mm to 12mm accommodate NEMA 17, NEMA 23, and other common stepper and servo motor shaft sizes without requiring custom machining.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🏗️\u003c\/div\u003e\n\u003cstrong\u003eAluminum Alloy Construction\u003c\/strong\u003e\n\u003cp\u003eMachined from aluminum alloy for a balance of light weight and structural rigidity, keeping rotational inertia low while maintaining dimensional stability under continuous cycling loads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e📐\u003c\/div\u003e\n\u003cstrong\u003e2mm GT2 Tooth Profile\u003c\/strong\u003e\n\u003cp\u003eThe 2GT \/ GT2 tooth geometry provides positive engagement with the belt, minimizing tooth jump and maintaining positional accuracy in open-loop stepper-driven systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🎯\u003c\/div\u003e\n\u003cstrong\u003e6mm Belt Width Compatibility\u003c\/strong\u003e\n\u003cp\u003eFlanged pulley body is sized specifically for 6mm wide 2GT belts, keeping the belt tracked reliably without lateral drift during high-cycle operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔄\u003c\/div\u003e\n\u003cstrong\u003eDrop-In Replacement Ready\u003c\/strong\u003e\n\u003cp\u003eStandard GT2 dimensions make these pulleys direct replacements for worn or undersized OEM pulleys on popular 3D printer platforms and DIY CNC kits without frame modification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📐 Technical Specifications — 2GT Timing Belt Pulleys\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Profile\u003c\/th\u003e\n\u003ctd\u003e2GT \/ GT2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch\u003c\/th\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Width Compatibility\u003c\/th\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count Options\u003c\/th\u003e\n\u003ctd\u003e16T, 20T, 25T, 30T, 40T, 60T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter Options\u003c\/th\u003e\n\u003ctd\u003e3.17mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm\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\u003eFinish\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\u003eYes (both sides)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSet Screw\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (approx.)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Length (approx.)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 pc per order\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\u003eTooth count determines the pulley's pitch diameter and affects your drive ratio. A 20T pulley is the most common choice for 3D printer X\/Y axes (e.g., Ender, Prusa style machines). Use a higher tooth count (30T–60T) when you need more belt contact, smoother motion at low speeds, or a speed-reduction ratio. Use a lower tooth count (16T–20T) for higher speed with a given motor RPM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich bore diameter should I select for a NEMA 17 stepper motor?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard NEMA 17 stepper motors have a 5mm output shaft diameter. Select the \u003cstrong\u003e5mm bore\u003c\/strong\u003e variant for a direct fit. If your motor has a D-cut shaft, the set screw on the pulley will lock onto the flat. For NEMA 23 motors, the shaft is typically 6.35mm or 8mm — choose the matching bore accordingly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these pulleys compatible with GT2 belts from other brands?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The 2GT tooth profile is dimensionally identical to the GT2 profile used across the industry. These pulleys will mesh correctly with any standard 2mm pitch, 6mm wide GT2 or 2GT timing belt regardless of brand, as long as the belt width is 6mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong are aluminum pulleys compared to plastic ones?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum alloy pulleys offer significantly higher dimensional stability and fatigue resistance than injection-molded plastic pulleys. They resist deformation under belt tension, maintain tooth geometry over long run times, and dissipate heat better — making them the preferred choice for continuous-duty CNC and automation applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these pulleys corrode or oxidize over time?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum naturally forms a thin oxide layer that protects against further corrosion in typical indoor environments. For applications exposed to moisture or mild chemicals (e.g., laser engravers with water cooling nearby), the anodized finish provides additional protection. These pulleys are not rated for submersion or highly corrosive environments.\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\u003eThese are drive pulleys designed to mount on a motor shaft via set screw. For idler use, you would typically need a smooth (toothless) idler pulley or a toothed idler with a bearing insert. Contact us to confirm if a specific variant can be adapted for your idler configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 20T variants with different bore sizes?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAll 20T variants share the same tooth count and pitch diameter — the only difference is the bore hole diameter (3.17mm, 4mm, 5mm, 6mm, 6.35mm, or 8mm). Choose the bore that matches your motor shaft. The outer tooth geometry and belt compatibility are identical across all 20T options.\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 and bore diameter\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":"16T, 5mm holes \/ 1pcs","offer_id":52445006037266,"sku":"LFLKKMX2960x1","price":2.69,"currency_code":"USD","in_stock":true},{"title":"20T, 5mm holes \/ 1pcs","offer_id":52445006070034,"sku":"LFLKKMX2961x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"20T, 8mm holes \/ 1pcs","offer_id":52445006102802,"sku":"LFLKKMX2962x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"20T, 4mm holes \/ 1pcs","offer_id":52445006135570,"sku":"LFLKKMX2963x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"20T, 6mm holes \/ 1pcs","offer_id":52445006168338,"sku":"LFLKKMX2964x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"20T, 3.17mm holes \/ 1pcs","offer_id":52445006201106,"sku":"LFLKKMX2965x1","price":3.07,"currency_code":"USD","in_stock":true},{"title":"25T, 5mm holes \/ 1pcs","offer_id":52445006233874,"sku":"LFLKKMX2966x1","price":4.0,"currency_code":"USD","in_stock":true},{"title":"25T, 6mm holes \/ 1pcs","offer_id":52445006266642,"sku":"LFLKKMX2967x1","price":4.0,"currency_code":"USD","in_stock":true},{"title":"25T, 8mm holes \/ 1pcs","offer_id":52445006299410,"sku":"LFLKKMX2968x1","price":4.08,"currency_code":"USD","in_stock":true},{"title":"30T, 5mm holes \/ 1pcs","offer_id":52445006332178,"sku":"LFLKKMX2969x1","price":4.46,"currency_code":"USD","in_stock":true},{"title":"30T, 6mm holes \/ 1pcs","offer_id":52445006364946,"sku":"LFLKKMX2970x1","price":4.46,"currency_code":"USD","in_stock":true},{"title":"30T, 8mm holes \/ 1pcs","offer_id":52445006397714,"sku":"LFLKKMX2971x1","price":4.61,"currency_code":"USD","in_stock":true},{"title":"40T, 8mm holes \/ 1pcs","offer_id":52445006430482,"sku":"LFLKKMX2972x1","price":5.07,"currency_code":"USD","in_stock":true},{"title":"30T, 10mm holes \/ 1pcs","offer_id":52445006463250,"sku":"LFLKKMX2973x1","price":4.61,"currency_code":"USD","in_stock":true},{"title":"40T, 10mm holes \/ 1pcs","offer_id":52445006496018,"sku":"LFLKKMX2974x1","price":5.07,"currency_code":"USD","in_stock":true},{"title":"40T, 5mm holes \/ 1pcs","offer_id":52445006528786,"sku":"LFLKKMX2975x1","price":5.07,"currency_code":"USD","in_stock":true},{"title":"40T, 6mm holes \/ 1pcs","offer_id":52445006561554,"sku":"LFLKKMX2976x1","price":5.07,"currency_code":"USD","in_stock":true},{"title":"40T, 12mm holes \/ 1pcs","offer_id":52445006594322,"sku":"LFLKKMX2977x1","price":5.07,"currency_code":"USD","in_stock":true},{"title":"60T, 5mm holes \/ 1pcs","offer_id":52445006627090,"sku":"LFLKKMX2978x1","price":7.22,"currency_code":"USD","in_stock":true},{"title":"60T, 10mm holes \/ 1pcs","offer_id":52445006659858,"sku":"LFLKKMX2979x1","price":7.22,"currency_code":"USD","in_stock":true},{"title":"60T, 8mm holes \/ 1pcs","offer_id":52445006692626,"sku":"LFLKKMX2980x1","price":7.22,"currency_code":"USD","in_stock":true},{"title":"20T, 6.35mm holes \/ 1pcs","offer_id":52445006725394,"sku":"LFLKKMX2981x1","price":2.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture9of10_3d8f422a-e092-4c8a-ade1-0ab255c2dc1c.jpg?v=1783566809","url":"https:\/\/homediyer.com\/products\/2gt-2mm-pitch-timing-belt-pulleys-drive-pulley-16-20-25-30-60-tooth-fit-6mm-belt","provider":"HomeDIYer","version":"1.0","type":"link"}