2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS
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2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS

2GT Timing Belt Pulley 30 36 40 48T Taper Lock 2mm Pitch 6mm Wide CNC ROBOTICS

HomeDIYer
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By HomeDIYer®

Price:
$8.94 USD
Stock:
In stock (500 units), ready to be shipped

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Description

2GT Timing Belt Pulley — Precise 2mm Pitch Drive for CNC, 3D Printers & Robotics

When your motion-control build demands repeatable, slip-free power transfer, a mismatched or worn pulley is the first thing that kills accuracy. Makers, CNC builders, and robotics engineers who need a reliable 2GT timing belt pulley in a range of tooth counts and bore sizes will find exactly what they need here — without hunting across multiple suppliers.

These 2GT timing belt pulleys are machined from aluminum alloy and feature a 2mm pitch (GT2 profile) with a 6mm belt width. Tooth counts span 30, 36, 40, 48, and 60 teeth, with bore diameters ranging from 5mm to 12mm (approximately 0.20" to 0.47"). Overall pulley outer diameter varies by tooth count — typically 19–38mm (0.75"–1.50") — and each pulley includes a set-screw hub for shaft retention.

Typical use cases include: open-loop and closed-loop CNC router X/Y axis drives, 3D printer CoreXY and Cartesian belt systems requiring a 2GT timing pulley replacement or upgrade, and lightweight robotic arm joints or conveyor indexing mechanisms where a compact aluminum timing pulley keeps moving mass low.

⚙️ Compatibility: Designed for standard 2GT / GT2 timing belts with 6mm width and 2mm pitch. Fits shafts from 5mm to 12mm depending on variant selected. Verify bore size and tooth count against your belt drive design before ordering.

✅ Key Features of These 2GT Timing Belt Pulleys

🔩
Multiple Tooth Counts

Available in 30, 36, 40, 48, and 60 teeth to match your drive ratio requirements for CNC, 3D printing, or robotics applications.

📐
Wide Bore Range

Bore options from 5mm to 12mm (including 6mm, 6.35mm, 7mm, 8mm, 10mm, 12mm) accommodate common motor shaft sizes without custom machining.

🏗️
Aluminum Alloy Construction

Machined aluminum body keeps rotating mass low while providing the rigidity needed for accurate, repeatable belt-driven motion.

⚡
2mm GT2 Pitch Profile

The 2GT tooth profile meshes cleanly with standard GT2 / 2GT timing belts, minimizing backlash and tooth skip under normal operating loads.

🔧
Set-Screw Hub Retention

Each pulley includes a set-screw hub for secure shaft mounting — no press-fit tools required, making installation and repositioning straightforward.

📦
Single or 5-Pack Quantity Options

Order one for a single-axis build or choose the 5-pack to stock spares or outfit a multi-axis machine — both options available for every size.

📐 Technical Specifications — 2GT Timing Belt Pulley

Belt Profile 2GT (GT2)
Belt Pitch 2mm
Belt Width 6mm
Tooth Count Options 30T / 36T / 40T / 48T / 60T
Bore Diameter Options 5mm / 6mm / 6.35mm / 7mm / 8mm / 10mm / 12mm
Material Aluminum alloy
Hub Retention Set screw
Outer Diameter (approx.) See variant options
Flange See variant options
Surface Finish See variant options
Quantity per Order 1 pc or 5 pcs (select above)

❓ Frequently Asked Questions

How do I choose the right tooth count for my build?

The tooth count determines your drive ratio. For a 1:1 ratio (e.g., CoreXY printers), use matching pulleys on both ends. For speed or torque reduction, pair a smaller driver pulley with a larger driven pulley. Common choices: 20T driver + 40T driven = 2:1 reduction. The 30T–60T range here suits most CNC and 3D printer belt-drive configurations.

Which bore size should I select for my stepper motor shaft?

Most NEMA 17 stepper motors use a 5mm shaft; NEMA 23 motors typically use an 8mm or 6.35mm (1/4") shaft. Check your motor's datasheet for the exact shaft diameter before selecting a bore. The 6.35mm bore is the metric equivalent of 1/4" and fits many US-standard motor shafts.

Are these pulleys compatible with GT2 belts from other brands?

Yes. The 2GT tooth profile is standardized and interchangeable with GT2 belts regardless of brand, as long as the belt pitch is 2mm and the belt width is 6mm. Avoid mixing 2mm-pitch pulleys with 3mm-pitch (GT3) belts.

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

The set screw provides adequate holding force for typical CNC and 3D printer torque levels. For higher-torque applications, ensure the shaft has a flat (D-cut) for the set screw to bear against, which significantly increases retention strength. Applying thread-locking compound to the set screw is also recommended for vibration-prone environments.

Will these pulleys corrode or degrade over time?

Aluminum alloy naturally forms a thin oxide layer that resists further oxidation in normal indoor environments. For humid or outdoor applications, consider applying a light coat of dry lubricant or anodizing the pulley surface. These pulleys are not rated for submerged or highly corrosive chemical environments.

Can I use these in a 3D printer like an Ender 3 or Voron?

Yes. The 2GT 6mm-wide profile is the standard used in most consumer and enthusiast 3D printers including Ender series (Cartesian), Voron (CoreXY), and similar designs. Select the tooth count and bore that match your printer's original specification — typically 20T with 5mm bore for the drive pulley, though idler configurations vary.

What is the difference between ordering 1 pc vs. 5 pcs?

Both options ship the same pulley in the same size. The 5-pack offers a lower per-unit cost and is useful for multi-axis machines, spare parts inventory, or group builds. Select your preferred quantity using the QTY option above before adding to cart.

🛒 Select your Size (tooth count + bore) and QTY above, then add to cart.

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