GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer
GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer
GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer
GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer
GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer
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GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D PrinterGT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D PrinterGT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D PrinterGT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D PrinterGT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer

GT2 Closed Loop Timing Belt 2mm Pitch 6mm Wide — 49 to 625 Teeth for CNC 3D Printer

HomeDIYer
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By HomeDIYer®

Price:
$7.47 USD
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In stock (500 units), ready to be shipped

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Description

GT2 Closed Loop Timing Belt — Precise Motion Control for CNC Routers & 3D Printers

When your CNC router skips steps or your 3D printer produces ringing artifacts, a worn or incorrectly sized drive belt is often the culprit. Makers, engineers, and machine builders who need repeatable, backlash-free linear motion rely on GT2 closed loop synchronous timing belts to keep their axes running true — whether they're dialing in a first layer or cutting aluminum on a desktop router.

Each belt in this listing is a single closed loop GT2 synchronous timing belt with a 2mm pitch and 6mm width. Available in 94 sizes ranging from 49 teeth / 98mm (≈3.9") up to 625 teeth / 1250mm (≈49.2"), covering virtually every common 3D printer and DIY CNC axis length. The belt body is rubber with an internal tensile cord (typically fiberglass or steel) for dimensional stability under load.

Typical use cases include replacing worn drive belts on Cartesian and CoreXY 3D printers (Ender 3, Prusa MK series, Voron, RatRig), building or upgrading DIY CNC routers and laser engravers, and powering RepRap-style motion systems where GT2 2mm pitch closed loop timing belts are the de facto standard.

🔗 Compatibility: Designed for GT2 profile pulleys and idlers with a 6mm belt groove. Verify your pulley profile (GT2) and groove width before ordering. Not interchangeable with HTD, T2.5, or MXL profile pulleys.

✅ Key Features of These GT2 Closed Loop Synchronous Timing Belts

  • 📐 2mm GT2 Pitch Profile — The GT2 curvilinear tooth profile reduces backlash and tooth jump compared to trapezoidal profiles, making it the go-to choice for 3D printer and CNC router motion systems.
  • 🔄 Closed Loop / Endless Construction — No splice or joint means consistent tension and smooth motion around the full belt path, eliminating the weak point found in open-end belt connections.
  • 📏 Wide Size Selection — 49 to 625 Teeth — With 94 size options from 98mm to 1250mm loop length, you can find the exact tooth count for your axis without cutting or splicing an open belt.
  • 🧲 Reinforced Tensile Core — Internal cord reinforcement (typically fiberglass or steel) resists stretching under load, maintaining consistent axis positioning over time in CNC and 3D printing applications.
  • ⚙️ 6mm Width — Standard for Desktop Machines — The 6mm belt width fits the vast majority of GT2 pulleys and idlers used in desktop 3D printers and DIY CNC builds, so no custom hardware is needed.
  • 🔧 Drop-In Replacement Fit — Sized by tooth count to match OEM belt specifications on common machines, making replacement straightforward without re-tensioning from scratch.

📐 Technical Specifications — GT2 Closed Loop Timing Belt

Belt Profile GT2 (curvilinear tooth)
Pitch 2mm
Belt Width 6mm
Belt Type Closed loop (endless)
Available Sizes 49 teeth / 98mm (≈3.9") — 625 teeth / 1250mm (≈49.2")
Loop Length Formula Teeth × 2mm = loop circumference in mm
Tensile Core Material Typically fiberglass or steel cord — contact us to confirm
Belt Body Material Rubber compound
Compatible Pulley Profile GT2, 6mm groove width
Typical Applications 3D printers, CNC routers, laser engravers, RepRap builds
Quantity per Order 1 belt (select size above)
Country of Origin See variant options
⚠️ Before ordering: Confirm your required tooth count by measuring your existing belt or calculating from your pulley center distance. Loop length = number of teeth × 2mm.

❓ Frequently Asked Questions

How do I choose the right belt length for my machine?

Count the teeth on your existing belt or measure the loop circumference. Each tooth on a GT2 2mm pitch belt equals 2mm of belt length — so a 100-tooth belt is 200mm (≈7.9") in circumference. For CNC and 3D printer axes, generally match the tooth count to your original belt or your pulley center-distance calculation. When in doubt, size up slightly and adjust belt tension rather than running a belt that is too short.

What pitch and width is this timing belt?

This belt uses the GT2 curvilinear tooth profile with a 2mm pitch and 6mm width. It is compatible with standard GT2 pulleys and idlers designed for 6mm wide belts. It is not compatible with HTD, T2.5, MXL, or other pitch profiles — always verify your pulley spec before ordering.

Is this belt compatible with my 3D printer or CNC router?

GT2 2mm pitch 6mm wide closed loop belts are the standard for most desktop 3D printers including Creality Ender series, Prusa MK series, Voron, RatRig, and many others, as well as a wide range of DIY CNC routers and laser engravers. Always verify your pulley tooth profile (GT2) and belt width before ordering. If your machine uses a different profile (e.g., HTD3M), this belt will not mesh correctly.

How strong is this timing belt — can it handle high-speed or high-torque applications?

GT2 closed loop belts are generally reinforced with a fiberglass or steel cord core, providing good tensile strength for motion control applications. They are typically rated for light-to-medium duty loads and are well-suited for the acceleration and speed demands of desktop 3D printers and CNC routers. For high-torque or heavy industrial use, contact us to confirm suitability for your specific application.

Can this belt be used outdoors or in humid environments?

The rubber compound used in GT2 belts generally offers moderate resistance to moisture and dust, making them suitable for indoor workshop environments. Prolonged outdoor UV exposure or contact with oils and solvents may degrade the belt material over time. For outdoor CNC builds or wet environments, a protective enclosure is recommended to extend belt service life.

What is the difference between a closed loop belt and an open-end belt?

A closed loop (endless) belt forms a continuous loop with no seam or splice, which provides smoother, more consistent motion and eliminates the weak point of a joined end. Open-end belts are cut to length and typically used where the belt path is not a closed loop or where the belt must be threaded through a carriage. For most 3D printer and CNC router axes, a closed loop belt is the correct choice when the tooth count matches your axis geometry.

Which pulley should I pair with this belt?

Use a GT2 profile pulley with a 6mm belt groove width. Common drive pulley tooth counts are 16T, 20T, and 36T depending on your machine's motion ratio. Idler pulleys should also be GT2 profile and 6mm wide. Bore size (typically 5mm for NEMA 17 motor shafts) should match your motor or shaft diameter. Using a non-GT2 pulley with this belt will cause poor meshing and accelerated wear.

🛒 Select your size (tooth count / length) above, then add to cart — ships from our US warehouse.

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