16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T
16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T
16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T
16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T
16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T
16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T
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16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T

16 Teeth 2GT/GT2 Timing Pulley Bore 3/4/5/6mm for Belt width 6/7/9/10/15mm 16T

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Price:
$2.71 USD
Stock:
In stock (500 units), ready to be shipped

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Description

16T GT2 Timing Pulley — Precise Motion Control for 3D Printers, CNC & Robotics

When 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.

Each 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.

Typical 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.

✅ Compatible with: 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.

✅ Key Features of These GT2 Timing Pulleys

  • ⚙️16-Tooth GT2 Profile — Standard 2mm pitch tooth geometry ensures smooth, low-noise belt engagement and accurate linear positioning in every revolution.
  • 🔩Multiple Bore Sizes — Available in 3mm, 3.17mm, 4mm, 5mm, 6mm, and 6.35mm bores to match a wide range of motor and shaft diameters without adapters.
  • 📏Multi-Width Belt Compatibility — Supports 6mm, 9mm, 10mm, and 15mm GT2 belt widths, giving you flexibility across different load and torque requirements.
  • 🏗️Aluminum Alloy Construction — Lightweight yet rigid body resists deformation under continuous belt tension, maintaining tooth alignment over extended use.
  • 🔧Set Screw Retention — Includes a radial set screw for secure shaft clamping, preventing rotational slip during rapid direction changes or high-cycle operation.
  • 📐Compact 16T Form Factor — Small outer diameter keeps your drive system tight and lightweight, ideal for space-constrained printer carriages and robotic joints.

📐 Technical Specifications — GT2 Timing Pulley

Tooth Count 16T
Belt Profile GT2 / 2GT (2mm pitch)
Bore Diameter 3mm / 3.17mm / 4mm / 5mm / 6mm / 6.35mm
Compatible Belt Width 6mm / 9mm / 10mm / 15mm
Material Aluminum alloy
Outer Diameter See variant options
Hub Width See variant options
Shaft Retention Set screw (included)
Finish Natural anodized / milled aluminum
Quantity per Order 1 piece

❓ Frequently Asked Questions

How do I choose the right bore size for my motor shaft?

Match 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.

Which belt width should I select?

Choose 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.

Is this pulley compatible with both GT2 and 2GT belts?

Yes. 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.

How strong is the set screw connection — will it slip under load?

The 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.

Will aluminum corrode or wear out quickly?

Aluminum 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.

Can I use this pulley as a replacement for my 3D printer's existing 16T GT2 pulley?

In 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.

How many pulleys are included per order?

Each 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.

🛒 Select your bore size and belt width above, then add to cart.

 

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