2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC
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2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC

2GT 16-110T Timing Belt Pulley Pitch 2mm With Step Width 11mm For 3D Printer CNC

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By HomeDIYer®

Price:
$6.94 USD
Stock:
In stock (500 units), ready to be shipped

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Description

2GT Timing Belt Pulley — Precision 2mm Pitch for 3D Printers, CNC & DIY Automation

When your 3D printer skips steps or your CNC router loses position mid-cut, the culprit is often a worn or mismatched timing pulley. Makers, engineers, and workshop builders who demand repeatable motion need a 2GT timing belt pulley they can rely on — one that seats firmly on the shaft, meshes cleanly with the belt, and holds tolerance run after run.

These 2GT timing belt pulleys feature a 2mm pitch profile and a stepped hub design with an 11mm belt-contact width. The bore diameter ranges from 4mm to 20mm (approximately 0.16 in to 0.79 in) across variants, and the tooth count spans 16T to 110T — covering a wide gear-ratio range in a single product family. Each pulley is machined from aluminum alloy with a natural anodized or silver finish, keeping weight low while maintaining dimensional stability.

Typical use cases include Cartesian and CoreXY 3D printer motion systems, desktop CNC router axis drives, laser engraver gantry assemblies, and custom DIY linear-motion automation rigs where a 2GT open or closed-loop belt is already in use.

⚙️ Compatibility: Designed for standard 2GT / GT2 timing belts with 2mm pitch and 6mm or 10mm belt width. Verify bore diameter and tooth count match your motor shaft and drive ratio before ordering.

✅ Key Features of These 2GT Timing Belt Pulleys

🦷 Wide Tooth Range: 16T – 110T

Choose from 26 tooth-count options to dial in the exact drive ratio your motion system requires — from fast, high-torque small pulleys to large reduction pulleys for slower, more powerful output.

🔩 Multi-Bore Options: 4mm – 20mm

Available bore diameters include 4, 5, 6, 6.35, 7, 8, 10, 12, 12.7, 14, 15, 16, 17, 19, and 20mm — covering NEMA 17, NEMA 23, and most standard stepper and servo motor shaft sizes.

📐 2mm Pitch / 11mm Step Width

The 2GT (GT2) 2mm pitch profile provides smooth, low-backlash engagement with standard 2GT belts. The 11mm stepped hub width accommodates both 6mm and 10mm belt widths with the flanges keeping the belt tracked.

🏗️ Aluminum Alloy Construction

Machined from lightweight aluminum alloy, these pulleys resist deformation under continuous load while keeping rotational inertia low — critical for fast direction changes in 3D printer and CNC applications.

🎯 Set-Screw Hub for Secure Shaft Mounting

Each pulley includes a set-screw hub that clamps directly onto the motor shaft, eliminating slippage during rapid acceleration and deceleration cycles common in 3D printing and CNC routing.

🔄 Drop-In Replacement for GT2 Systems

Dimensionally compatible with standard GT2 / 2GT open-loop and closed-loop belt systems. Suitable as a direct replacement in Ender, Voron, Prusa-style printers, and most open-source CNC platforms.

📐 Technical Specifications — 2GT Timing Belt Pulley

Belt Profile 2GT (GT2)
Pitch 2mm
Belt Width Compatibility 6mm / 10mm
Step Width (Hub) 11mm
Number of Teeth 16T – 110T (see variant options)
Bore Diameter 4mm – 20mm (see variant options)
Material Aluminum alloy
Finish See variant options
Mounting Set-screw hub
Quantity per Order 1 piece
Weight See variant options

❓ Frequently Asked Questions

How do I choose the right number of teeth for my application?

The tooth count determines your drive ratio. Divide the driven pulley teeth by the driving pulley teeth to get the ratio. For 3D printers, 16T–20T on the motor is common for fast, responsive movement. Larger tooth counts (40T+) are used on the driven side to reduce speed and increase torque. Match your tooth count to your existing belt loop length and axis travel requirements.

Which bore diameter should I select for a NEMA 17 stepper motor?

Standard NEMA 17 stepper motors have a 5mm output shaft diameter. Select the 5mm bore variant for a direct fit. If your motor has a D-shaft (flat on one side), the set screw will lock against the flat for a more secure grip. For NEMA 23 motors, the shaft is typically 6.35mm (1/4 inch) — select the 6.35mm bore variant.

Is this pulley compatible with standard GT2 belts?

Yes. The 2GT profile is dimensionally identical to the GT2 profile — both use a 2mm pitch with the same tooth geometry. These pulleys are compatible with standard GT2 open-loop belts (sold by the meter) and GT2 closed-loop belts. Confirm your belt width (6mm or 10mm) matches the pulley's 11mm step width, which accommodates both.

How strong is the set-screw connection? Will it slip under load?

The set-screw hub provides a firm mechanical lock when tightened against the motor shaft. For D-shaft motors, the flat provides additional anti-rotation resistance. For round shafts, applying a small amount of thread-locking compound to the set screw is recommended for high-cycle or high-torque applications. The aluminum body is rigid enough to handle the torque output of typical NEMA 17 and NEMA 23 stepper motors.

Can I use this pulley outdoors or in humid environments?

The aluminum alloy construction offers natural corrosion resistance suitable for indoor workshop and enclosed machine environments. For prolonged outdoor exposure or high-humidity conditions, applying a light protective coating is advisable. The material will not rust, but surface oxidation may develop over time without protection.

What is the difference between a 16T and a 20T pulley for a 3D printer?

A 16T pulley moves the belt approximately 32mm per motor revolution (16 teeth × 2mm pitch), while a 20T pulley moves it 40mm per revolution. A smaller tooth count gives finer resolution per step but requires more motor speed for the same axis velocity. Most Cartesian 3D printers use 20T as a balance between resolution and speed. CoreXY builds often use 16T or 20T depending on the target print speed and motor torque.

Do I need to buy a matching idler pulley separately?

This listing covers drive pulleys with set-screw hubs only. If your belt path requires an idler (a free-spinning pulley with no shaft attachment), that is a separate component. For most 3D printer and CNC builds, you will need at least one drive pulley per motor axis and one or more idler pulleys to route the belt — check your machine's BOM or assembly guide for the exact count.

🛒 Select your tooth count and bore diameter above, then add to cart.

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