{"product_id":"16t-gt2-timing-pulley-bore-3-6mm-belt-6-15mm","title":"16 Teeth 2GT\/GT2 Timing Pulley Bore 3\/4\/5\/6mm for Belt width 6\/7\/9\/10\/15mm 16T","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e16T GT2 Timing Pulley — Precise Motion Control for 3D Printers, CNC \u0026amp; Robotics\u003c\/h2\u003e\n\u003cp\u003eWhen your motion system demands repeatable, slip-free positioning, a worn or mismatched pulley is the first thing that lets you down. Makers, engineers, and workshop builders who rely on GT2 belt drives need a pulley that holds tight tolerances across every cycle. This 16-tooth GT2\/2GT timing pulley is engineered for exactly that — delivering consistent tooth engagement and minimal backlash in compact drive systems.\u003c\/p\u003e\n\u003cp\u003eEach pulley is machined from aluminum alloy with a standard 2mm GT2 tooth pitch and a 16-tooth count. Bore options range from 3mm to 6.35mm (approximately 0.12–0.25 in), and compatible belt widths span 6mm to 15mm (approximately 0.24–0.59 in). A set screw secures the pulley to the shaft for positive, non-slip mounting.\u003c\/p\u003e\n\u003cp\u003eTypical applications include FDM 3D printer X\/Y axis drives, desktop CNC router feed systems, lightweight robotic arm joints, and custom linear motion rigs — anywhere a low-profile 16T GT2 timing pulley for 3D printer or CNC belt drive is required.\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 Standard 2GT \/ GT2 open-loop and closed-loop belts — 6mm, 9mm, 10mm, and 15mm widths. Fits shafts from 3mm to 6.35mm diameter. Suitable for NEMA 17 stepper motor shafts (5mm) and common hobby servo\/motor shafts.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These GT2 Timing Pulleys\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cstrong\u003e16-Tooth GT2 Profile\u003c\/strong\u003e — Standard 2mm pitch tooth geometry ensures smooth, low-noise belt engagement and accurate linear positioning in every revolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eMultiple Bore Sizes\u003c\/strong\u003e — Available in 3mm, 3.17mm, 4mm, 5mm, 6mm, and 6.35mm bores to match a wide range of motor and shaft diameters without adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cstrong\u003eMulti-Width Belt Compatibility\u003c\/strong\u003e — Supports 6mm, 9mm, 10mm, and 15mm GT2 belt widths, giving you flexibility across different load and torque requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\u003cstrong\u003eAluminum Alloy Construction\u003c\/strong\u003e — Lightweight yet rigid body resists deformation under continuous belt tension, maintaining tooth alignment over extended use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cstrong\u003eSet Screw Retention\u003c\/strong\u003e — Includes a radial set screw for secure shaft clamping, preventing rotational slip during rapid direction changes or high-cycle operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eCompact 16T Form Factor\u003c\/strong\u003e — Small outer diameter keeps your drive system tight and lightweight, ideal for space-constrained printer carriages and robotic joints.\u003c\/li\u003e\n\u003c\/ul\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\u003eTooth Count\u003c\/th\u003e\n\u003ctd\u003e16T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Profile\u003c\/th\u003e\n\u003ctd\u003eGT2 \/ 2GT (2mm pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e3mm \/ 3.17mm \/ 4mm \/ 5mm \/ 6mm \/ 6.35mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Belt Width\u003c\/th\u003e\n\u003ctd\u003e6mm \/ 9mm \/ 10mm \/ 15mm\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\u003eOuter Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft Retention\u003c\/th\u003e\n\u003ctd\u003eSet screw (included)\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\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\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 bore size for my motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bore to your motor shaft diameter. NEMA 17 steppers typically use a 5mm shaft, while many hobby motors and servos use 3mm, 4mm, or 6mm shafts. If your shaft is imperial (e.g., 1\/8 in ≈ 3.17mm or 1\/4 in ≈ 6.35mm), select the corresponding bore option. When in doubt, measure your shaft with calipers before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich belt width should I select?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eChoose the belt width that matches your existing GT2 belt. The 6mm width is standard for most desktop 3D printers (e.g., Ender, Prusa-style). The 9mm and 10mm widths suit higher-torque CNC or heavier carriage applications. The 15mm width is used in wider-belt systems requiring greater load capacity. The pulley flanges are sized to match each belt width option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this pulley compatible with both GT2 and 2GT belts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. GT2 and 2GT are functionally interchangeable designations for the same 2mm pitch curvilinear tooth profile. This pulley meshes correctly with any standard GT2 or 2GT open-loop or closed-loop belt of the matching width.\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 a positive mechanical lock against the shaft. For best results, ensure the shaft surface is clean and use a properly sized hex key to tighten the screw to a firm (not excessive) torque. For high-cycle or high-acceleration applications, applying a small amount of thread-locking compound to the set screw is recommended to prevent loosening over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill aluminum corrode or wear out quickly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum alloy offers good corrosion resistance in typical indoor workshop and electronics environments. The tooth profile maintains its geometry well under normal GT2 belt loads. For outdoor or high-humidity environments, periodic inspection is advisable. The material is not recommended for continuous immersion in corrosive liquids.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this pulley as a replacement for my 3D printer's existing 16T GT2 pulley?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIn most cases, yes — provided you select the correct bore (typically 5mm for NEMA 17) and belt width (typically 6mm for standard desktop FDM printers). Verify your printer's belt width and motor shaft diameter before ordering. This pulley uses the same standard GT2 tooth geometry as OEM pulleys found on most popular desktop 3D printer platforms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pulleys are included per order?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach order includes 1 piece. If you need multiple pulleys — for example, for both X and Y axes — simply increase the quantity at checkout or place separate orders for different bore\/belt width combinations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your bore size and belt width above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"16T \/ 5mm \/ 15mm","offer_id":52446051827986,"sku":"KFCBJT00783x1","price":2.71,"currency_code":"USD","in_stock":true},{"title":"16T \/ 4mm \/ 6mm","offer_id":52446051860754,"sku":"KFCBJT00784x1","price":1.35,"currency_code":"USD","in_stock":true},{"title":"16T \/ 5mm \/ 6mm","offer_id":52446051893522,"sku":"KFCBJT00785x1","price":2.52,"currency_code":"USD","in_stock":true},{"title":"16T \/ 6.35mm \/ 10mm","offer_id":52446051926290,"sku":"KFCBJT00786x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"16T \/ 6mm \/ 10mm","offer_id":52446051959058,"sku":"KFCBJT00787x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"16T \/ 6mm \/ 9mm","offer_id":52446051991826,"sku":"KFCBJT00788x1","price":2.57,"currency_code":"USD","in_stock":true},{"title":"16T \/ 6.35mm \/ 6mm","offer_id":52446052024594,"sku":"KFCBJT00789x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"16T \/ 6mm \/ 6mm","offer_id":52446052057362,"sku":"KFCBJT00790x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"16T \/ 4mm \/ 10mm","offer_id":52446052090130,"sku":"KFCBJT00791x1","price":2.57,"currency_code":"USD","in_stock":true},{"title":"16T \/ 3mm \/ 10mm","offer_id":52446052122898,"sku":"KFCBJT00792x1","price":2.57,"currency_code":"USD","in_stock":true},{"title":"16T \/ 5mm \/ 10mm","offer_id":52446052155666,"sku":"KFCBJT00793x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"16T \/ 5mm \/ 9mm","offer_id":52446052188434,"sku":"KFCBJT00795x1","price":2.57,"currency_code":"USD","in_stock":true},{"title":"16T \/ 3.17mm \/ 6mm","offer_id":52446052221202,"sku":"KFCBJT00796x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"16T \/ 3mm \/ 6mm","offer_id":52446052253970,"sku":"KFCBJT00797x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"16T \/ 3.17mm \/ 10mm","offer_id":52446052286738,"sku":"KFCBJT00798x1","price":2.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of6_9db096c7-8636-4c95-bba7-a09a30a7673a.jpg?v=1784118853","url":"https:\/\/homediyer.com\/products\/16t-gt2-timing-pulley-bore-3-6mm-belt-6-15mm","provider":"HomeDIYer","version":"1.0","type":"link"}