{"product_id":"gt2-timing-pulley-16-80t-cnc-3d-printer-belt-drive","title":"GT2 Zahnrad Pulley 16-80 Zahn-Riemenscheibe-Zahnriemenrad - CNC-3D Drucker","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eGT2 Timing Pulley — Precision Belt Drive for CNC and 3D Printer Builds\u003c\/h2\u003e\n    \u003cp\u003eWhen a slipping or mismatched pulley throws off your axis calibration mid-print or derails a CNC pass, the entire project pays the price. Engineers, makers, and automation builders who demand repeatable, backlash-free motion need a GT2 timing pulley they can rely on across every cycle. These GT2 Zahnriemenrad pulleys are engineered for exactly that — consistent tooth engagement and smooth belt tracking in demanding drive systems.\u003c\/p\u003e\n    \u003cp\u003eEach pulley features a GT2 tooth profile machined to mesh precisely with standard 2mm-pitch GT2 timing belts. Available in tooth counts from 16T to 80T and bore diameters from 3.17mm (1\/8 in) to 14mm, the pulleys are typically 6–16mm wide with an outer diameter ranging from approximately 10mm to 52mm depending on tooth count. The bore accepts a set-screw for secure shaft fixing without additional machining.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include CoreXY and Cartesian 3D printer X\/Y axis drives, CNC router gantry belt systems, and lightweight robotic arm joint actuators — all applications where a GT2 belt pulley with a precise bore-to-shaft fit directly determines positioning accuracy and repeatability.\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    Compatible with standard \u003cstrong\u003eGT2 2mm-pitch timing belts\u003c\/strong\u003e (6mm width). Verify bore diameter matches your motor or idler shaft before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These GT2 Timing Pulleys\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 16T to 80T, covering low-speed high-torque drives and high-speed lightweight motion systems in a single product line.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n      \u003cstrong\u003eMultiple Bore Options\u003c\/strong\u003e\n      \u003cp\u003eInner hole sizes from 3.17mm to 14mm accommodate NEMA stepper motor shafts, hobby servo shafts, and custom CNC spindle diameters without adapters.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e📐\u003c\/div\u003e\n      \u003cstrong\u003eGT2 2mm Pitch Profile\u003c\/strong\u003e\n      \u003cp\u003eTooth geometry matches the GT2 standard for zero-backlash meshing with GT2 belts, ensuring accurate linear positioning in open-loop and closed-loop systems.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔧\u003c\/div\u003e\n      \u003cstrong\u003eSet-Screw Shaft Fixing\u003c\/strong\u003e\n      \u003cp\u003eEach pulley includes a set-screw bore for tool-free shaft locking, simplifying installation and allowing quick swaps during prototyping or maintenance.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e⚖️\u003c\/div\u003e\n      \u003cstrong\u003eLightweight Construction\u003c\/strong\u003e\n      \u003cp\u003eCompact form factor keeps moving mass low — critical for high-acceleration 3D printer carriages and CNC gantries where inertia directly affects print speed and cut quality.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔄\u003c\/div\u003e\n      \u003cstrong\u003eBroad System Compatibility\u003c\/strong\u003e\n      \u003cp\u003eFits CoreXY, Cartesian, delta, and H-bot printer architectures as well as standard CNC belt-drive gantries and light-duty robotic actuators using GT2 belt systems.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\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 Pitch\u003c\/th\u003e\n\u003ctd\u003eGT2 — 2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTooth Count Options\u003c\/th\u003e\n\u003ctd\u003e16T, 20T, 48T, 60T, 80T\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, 6.35mm, 8mm, 10mm, 12mm, 14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBelt Width Compatibility\u003c\/th\u003e\n\u003ctd\u003e6mm (GT2 standard)\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\u003ePulley Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShaft Fixing\u003c\/th\u003e\n\u003ctd\u003eSet-screw\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\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\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\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 pc per unit\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 build?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eTooth count determines the pulley's pitch diameter and, combined with your motor's step angle and microstepping setting, defines your system's steps-per-mm. Smaller tooth counts (16T–20T) give finer resolution and suit compact, high-speed carriages. Larger counts (60T–80T) increase belt wrap and torque output, making them better for heavier gantries or slower, higher-force drives. Match your tooth count to your target steps-per-mm calculation before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\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\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-cut shaft, ensure the set-screw is positioned to engage the flat for a secure, non-slip connection.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\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\u003cp\u003eYes. The GT2 2mm pitch profile is an open standard. These pulleys mesh with any GT2 timing belt of the correct pitch and width (6mm). Belt brand does not affect compatibility as long as the pitch and width match.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between the 6mm and 6.35mm bore options?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e6.35mm is the metric equivalent of 1\/4 inch, a common shaft size in North American hobby motors and some servo systems. If your shaft is imperial (1\/4 in), choose 6.35mm. For metric 6mm shafts, choose the 6mm bore. Using the wrong bore will result in a loose fit or inability to mount the pulley.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\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\u003cp\u003eThe set-screw provides adequate holding force for typical 3D printer and light CNC loads when properly tightened with the correct hex key. For high-torque or high-vibration applications, applying a small amount of thread-locking compound to the set-screw is recommended. Ensure the screw seats against the shaft flat (D-cut) if present for maximum grip.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these pulleys as idlers by removing the set-screw?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese are drive pulleys designed to be fixed to a motor shaft. They are not optimized for idler use, which typically requires a smooth bore and a bearing insert. For idler positions, a dedicated idler pulley with an integrated bearing is recommended to avoid bore wear and ensure smooth belt tracking.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat tooth counts are available and how do I decide between 48T, 60T, and 80T?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e48T, 60T, and 80T are larger pulleys suited for applications where you need a higher gear ratio, more belt contact, or a larger pitch diameter. 48T is a good middle ground for medium-speed CNC belt drives. 60T and 80T are used in systems where the motor drives a large axis directly and lower RPM with higher torque is preferred, or where a specific steps-per-mm value requires a larger pulley diameter.\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 and inner hole diameter above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right tooth count for my build?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Tooth count determines the pulley's pitch diameter and, combined with your motor's step angle and microstepping setting, defines your system's steps-per-mm. Smaller tooth counts (16T–20T) give finer resolution and suit compact, high-speed carriages. Larger counts (60T–80T) increase belt wrap and torque output, making them better for heavier gantries or slower, higher-force drives.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which bore size fits a standard NEMA 17 stepper motor shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard NEMA 17 stepper motors have a 5mm output shaft. Select the 5mm bore variant for a direct fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these pulleys compatible with GT2 belts from other brands?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The GT2 2mm pitch profile is an open standard. These pulleys mesh with any GT2 timing belt of the correct pitch and width (6mm).\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the 6mm and 6.35mm bore options?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"6.35mm is the metric equivalent of 1\/4 inch, a common shaft size in North American hobby motors and some servo systems. If your shaft is imperial (1\/4 in), choose 6.35mm. For metric 6mm shafts, choose the 6mm bore.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is the set-screw connection — will it slip under load?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The set-screw provides adequate holding force for typical 3D printer and light CNC loads when properly tightened. For high-torque or high-vibration applications, applying thread-locking compound is recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these pulleys as idlers by removing the set-screw?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These are drive pulleys designed to be fixed to a motor shaft and are not optimized for idler use. A dedicated idler pulley with an integrated bearing is recommended for idler positions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What tooth counts are available and how do I decide between 48T, 60T, and 80T?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"48T is a good middle ground for medium-speed CNC belt drives. 60T and 80T are used where lower RPM with higher torque is preferred, or where a specific steps-per-mm value requires a larger pulley diameter.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"80T \/ 5mm \/ 1pcs","offer_id":52447072813330,"sku":"LFLKKMX3266x1","price":9.26,"currency_code":"USD","in_stock":true},{"title":"80T \/ 8mm \/ 1pcs","offer_id":52447072846098,"sku":"LFLKKMX3267x1","price":9.26,"currency_code":"USD","in_stock":true},{"title":"80T \/ 10mm \/ 1pcs","offer_id":52447072878866,"sku":"LFLKKMX3268x1","price":9.26,"currency_code":"USD","in_stock":true},{"title":"80T \/ 12mm \/ 1pcs","offer_id":52447072911634,"sku":"LFLKKMX3269x1","price":9.26,"currency_code":"USD","in_stock":true},{"title":"80T \/ 14mm \/ 1pcs","offer_id":52447072944402,"sku":"LFLKKMX3270x1","price":9.26,"currency_code":"USD","in_stock":true},{"title":"60T \/ 5mm \/ 1pcs","offer_id":52447072977170,"sku":"LFLKKMX3271x1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"60T \/ 6mm \/ 1pcs","offer_id":52447073009938,"sku":"LFLKKMX3272x1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"60T \/ 6.35mm \/ 1pcs","offer_id":52447073042706,"sku":"LFLKKMX3273x1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"60T \/ 8mm \/ 1pcs","offer_id":52447073075474,"sku":"LFLKKMX3274x1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"60T \/ 10mm \/ 1pcs","offer_id":52447073108242,"sku":"LFLKKMX3275x1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"60T \/ 12mm \/ 1pcs","offer_id":52447073141010,"sku":"LFLKKMX3276x1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"48T \/ 5mm \/ 1pcs","offer_id":52447073173778,"sku":"LFLKKMX3277x1","price":5.78,"currency_code":"USD","in_stock":true},{"title":"48T \/ 8mm \/ 1pcs","offer_id":52447073206546,"sku":"LFLKKMX3278x1","price":5.78,"currency_code":"USD","in_stock":true},{"title":"48T \/ 10mm \/ 1pcs","offer_id":52447073239314,"sku":"LFLKKMX3279x1","price":5.78,"currency_code":"USD","in_stock":true},{"title":"48T \/ 12mm \/ 1pcs","offer_id":52447073272082,"sku":"LFLKKMX3280x1","price":5.78,"currency_code":"USD","in_stock":true},{"title":"20T \/ 4mm \/ 1pcs","offer_id":52447073304850,"sku":"LFLKKMX3281x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"20T \/ 5mm \/ 1pcs","offer_id":52447073337618,"sku":"LFLKKMX3282x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"20T \/ 6mm \/ 1pcs","offer_id":52447073370386,"sku":"LFLKKMX3283x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"20T \/ 6.35mm \/ 1pcs","offer_id":52447073403154,"sku":"LFLKKMX3284x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"20T \/ 8mm \/ 1pcs","offer_id":52447073435922,"sku":"LFLKKMX3285x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"16T \/ 5mm \/ 1pcs","offer_id":52447073468690,"sku":"LFLKKMX3286x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"20T \/ 3.17mm \/ 1pcs","offer_id":52447073501458,"sku":"LFLKKMX3287x1","price":3.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Bild1von11_3a23107c-d5fe-45dc-8777-545e58add9b5.jpg?v=1783936871","url":"https:\/\/homediyer.com\/products\/gt2-timing-pulley-16-80t-cnc-3d-printer-belt-drive","provider":"HomeDIYer","version":"1.0","type":"link"}