{"product_id":"gt2-timing-pulley-16-20-tooth-5mm-8mm-bore-6mm-belt-2gt","title":"GT2 Riemenscheibe, Pulleye, 16\/20 Zähne 5mm\/8mm Bohrung für 6mm Zahnriemen, 2GT","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eGT2 Timing Pulleys — Precise 2GT Drive for 3D Printers, CNC \u0026amp; Robotics\u003c\/h2\u003e\n\u003cp\u003eWhen your motion system demands slip-free synchronization, a mismatched or worn pulley is the first thing to fail. Makers, engineers, and workshop builders who rely on belt-driven axes need a GT2 timing pulley that holds tight tolerances run after run. These 2GT pulleys are engineered for exactly that — delivering consistent, backlash-free power transfer in compact DIY automation setups.\u003c\/p\u003e\n\u003cp\u003eEach pulley features a 2GT tooth profile machined to mesh cleanly with standard 6 mm wide GT2 timing belts. Available in 16-tooth and 20-tooth configurations, with bore options of 5 mm (~0.197 in) or 8 mm (~0.315 in). The standard and iron-material 20-tooth variants are aluminum alloy; the enhanced 20-tooth version uses a reinforced construction for higher-load applications. Outer diameter ranges typically from 10–14 mm depending on tooth count.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include: replacing worn pulleys on Cartesian 3D printer X\/Y axes, building custom CNC router belt drives, and assembling lightweight robotic arm joints where a small-diameter GT2 pulley for 6mm belt is required. Available in packs of 1, 5, or 10 for prototyping through production runs.\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 Designed for standard \u003cstrong\u003e2GT \/ GT2 timing belts, 6 mm wide\u003c\/strong\u003e. Fits motor shafts with \u003cstrong\u003e5 mm or 8 mm\u003c\/strong\u003e bore. Compatible with NEMA 17 stepper motors (5 mm shaft) and common brushless\/DC motors with 8 mm shafts.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These GT2 Timing Pulleys\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦷\u003c\/span\u003e \u003cstrong\u003e16 \u0026amp; 20 Tooth Options\u003c\/strong\u003e\n\u003cp\u003eChoose 16T for higher speed ratios or 20T for smoother, lower-noise operation — both machined to 2GT pitch for accurate belt engagement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003e5 mm \u0026amp; 8 mm Bore Sizes\u003c\/strong\u003e\n\u003cp\u003eFits the most common DIY motor shaft diameters. The 5 mm bore suits NEMA 17 steppers; the 8 mm bore works with larger DC and servo motors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e \u003cstrong\u003eMultiple Material Grades\u003c\/strong\u003e\n\u003cp\u003eStandard aluminum alloy for lightweight builds, iron-material variant for added rigidity, and an enhanced version with reinforced construction for demanding load cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003e6 mm Belt Width Matched\u003c\/strong\u003e\n\u003cp\u003eFlanged groove profile keeps the 6 mm GT2 belt centered and prevents lateral drift during high-speed or reversing motion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n\u003cp\u003eOrder 1, 5, or 10 pieces per variant — ideal for single-machine repairs, small batch builds, or stocking a maker workshop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eDrop-In Replacement Ready\u003c\/strong\u003e\n\u003cp\u003eStandard 2GT tooth geometry ensures direct compatibility with most open-source 3D printer designs (Ender, Prusa-style, Voron, etc.) and common CNC belt kits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📐 Technical Specifications — GT2 Timing Pulley\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\u003eBelt Width\u003c\/th\u003e\n\u003ctd\u003e6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count\u003c\/th\u003e\n\u003ctd\u003e16T \/ 20T (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e5 mm \/ 8 mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Pitch\u003c\/th\u003e\n\u003ctd\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (16T)\u003c\/th\u003e\n\u003ctd\u003eTypically ~10.2 mm (~0.40 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (20T)\u003c\/th\u003e\n\u003ctd\u003eTypically ~12.7 mm (~0.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum alloy (standard \u0026amp; enhanced) \/ Iron (iron-material variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlange\u003c\/th\u003e\n\u003ctd\u003eYes — dual flange to retain 6 mm belt\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\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 \/ 5 \/ 10 pieces (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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\u003eWhich tooth count should I choose — 16T or 20T?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 16-tooth pulley gives a higher speed ratio and is often used on the motor side of a drive system where you want faster belt travel per revolution. The 20-tooth pulley produces smoother, quieter motion and is the most common choice for 3D printer X\/Y axes. If you are replacing an existing pulley, match the tooth count of the original.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Standard, Enhanced, and Iron-Material 20-tooth versions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe Standard 20-tooth is a lightweight aluminum alloy pulley suited for typical 3D printing loads. The Enhanced version uses a reinforced construction (thicker hub or harder alloy) for higher torque or more demanding duty cycles. The Iron-Material variant is made from steel\/iron for maximum rigidity and is a good choice when the pulley is subject to side loads or frequent reversals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this pulley fit my NEMA 17 stepper motor?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes — NEMA 17 stepper motors have a standard 5 mm output shaft. Select the 5 mm bore variant and it will fit directly. Secure it with the set screw after aligning the pulley to your belt path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this pulley 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 an open standard. These pulleys are compatible with any GT2 \/ 2GT timing belt that is 6 mm wide, regardless of brand, as long as the belt pitch is 2 mm.\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\u003eThe pulley is secured using a set screw (grub screw) that clamps against the motor shaft. Use a hex key (Allen key) to tighten the set screw firmly. For 5 mm shafts, ensure the flat on the motor shaft (if present) is aligned with the set screw for maximum grip.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pieces do I need for a typical CoreXY or Cartesian 3D printer?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA standard Cartesian printer (e.g., Ender-style) uses 2 motor pulleys — one per axis motor. A CoreXY printer typically uses 2 motor pulleys plus several idler pulleys. Ordering a 5-pack gives you spares for future maintenance. For a full build or workshop stock, the 10-pack offers the best per-unit value.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these pulleys for CNC router or laser cutter belt drives?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. GT2 belt drives are widely used in desktop CNC routers and laser cutters. Select the bore size that matches your stepper or servo motor shaft. For higher-load CNC applications, the iron-material or enhanced version is recommended for added durability.\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 quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"16 Zahn \/ 6 mm \/ 5 mm \u0026 1 Stück","offer_id":52445913055506,"sku":"GYJLTBJT00718x1","price":1.77,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Standardausgabe \/ 6 mm \/ 5 mm \u0026 1 Stück","offer_id":52445913088274,"sku":"GYJLTBJT00722x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Verbesserte Version \/ 6 mm \/ 5 mm \u0026 1 Stück","offer_id":52445913121042,"sku":"GYJLTBJT00720x1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Eisenmaterial \/ 6 mm \/ 5 mm \u0026 1 Stück","offer_id":52445913153810,"sku":"GYJLTBJT00719x1","price":2.24,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Standardausgabe \/ 6 mm \/ 8 mm \u0026 1 Stück","offer_id":52445913186578,"sku":"GYJLTBJT00717x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Verbesserte Version \/ 6 mm \/ 8 mm \u0026 1 Stück","offer_id":52445913219346,"sku":"GYJLTBJT00721x1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"16 Zahn \/ 6 mm \/ 5 mm \u0026 5 Stück","offer_id":52445913252114,"sku":"GYJLTBJT00718x5","price":6.05,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Standardausgabe \/ 6 mm \/ 5 mm \u0026 5 Stück","offer_id":52445913284882,"sku":"GYJLTBJT00722x5","price":6.05,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Verbesserte Version \/ 6 mm \/ 5 mm \u0026 5 Stück","offer_id":52445913317650,"sku":"GYJLTBJT00720x5","price":10.46,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Eisenmaterial \/ 6 mm \/ 5 mm \u0026 5 Stück","offer_id":52445913350418,"sku":"GYJLTBJT00719x5","price":6.87,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Standardausgabe \/ 6 mm \/ 8 mm \u0026 5 Stück","offer_id":52445913383186,"sku":"GYJLTBJT00717x5","price":6.05,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Verbesserte Version \/ 6 mm \/ 8 mm \u0026 5 Stück","offer_id":52445913415954,"sku":"GYJLTBJT00721x5","price":10.46,"currency_code":"USD","in_stock":true},{"title":"16 Zahn \/ 6 mm \/ 5 mm \u0026 10 Stück","offer_id":52445913448722,"sku":"GYJLTBJT00718x10","price":10.95,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Standardausgabe \/ 6 mm \/ 5 mm \u0026 10 Stück","offer_id":52445913481490,"sku":"GYJLTBJT00722x10","price":10.95,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Verbesserte Version \/ 6 mm \/ 5 mm \u0026 10 Stück","offer_id":52445913514258,"sku":"GYJLTBJT00720x10","price":19.84,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Eisenmaterial \/ 6 mm \/ 5 mm \u0026 10 Stück","offer_id":52445913547026,"sku":"GYJLTBJT00719x10","price":12.72,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Standardausgabe \/ 6 mm \/ 8 mm \u0026 10 Stück","offer_id":52445913579794,"sku":"GYJLTBJT00717x10","price":10.95,"currency_code":"USD","in_stock":true},{"title":"20 Zahn Verbesserte Version \/ 6 mm \/ 8 mm \u0026 10 Stück","offer_id":52445913612562,"sku":"GYJLTBJT00721x10","price":19.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Bild4von8_b72ede79-2ab1-4dd0-a41b-b53eb75d28f6.jpg?v=1784034384","url":"https:\/\/homediyer.com\/products\/gt2-timing-pulley-16-20-tooth-5mm-8mm-bore-6mm-belt-2gt","provider":"HomeDIYer","version":"1.0","type":"link"}