GT2 Timing Belt Kit – 5M Belt & 5pcs Pulleys Bore 5mm

GT2 Timing Belt Kit – 5M Belt & 5pcs Pulleys Bore 5mm | Mellow

$54.37 $73.58

Mellow GT2 Timing Belt & Pulley Kit for 3D Printers

Upgrade your 3D printer's motion system with this precision-engineered GT2 Timing Belt & Pulley Kit by Mellow. Designed to minimize belt skip and reduce vibration, this kit helps your printer achieve smoother, more consistent movement — resulting in cleaner, more accurate prints. Whether you're building from scratch or replacing worn components, this kit delivers the tight tolerances and surface finish that demanding makers require.

Made in Mainland China.

Why Choose This GT2 Timing Belt Kit?

Gates-Compatible Tooth Profile: Pulleys are machined using special tooling engineered to work seamlessly with Gates-standard GT2 belts, ensuring a precise, skip-free mesh.
High-Precision Surface Finish: Each timing pulley is produced to a surface finish of Ra0.4µm for ultra-smooth, low-friction operation.
Reduced Jitter: Tight tooth-to-belt tolerances minimize backlash and belt bounce, improving overall print quality and dimensional accuracy.
Durable Aluminium Alloy Pulleys: Lightweight yet rigid double-flanged aluminium pulleys keep the belt tracked perfectly at all times.
Complete Kit: Everything you need is included — belt, pulleys, setscrews, and an Allen key. No extra sourcing required.

Technical Specifications

2GT Timing Belt

Pitch: 2mm (GT2)
Belt Height: 1.38mm
Tooth Height: 0.75mm
Width: 6mm
Length: 5 metres (open/continuous roll)

GT2 Timing Pulleys

Teeth Options: 16 teeth / 20 teeth
Teeth Pitch: 2mm
Bore Diameter: 5mm
Flange: Double
Material: Aluminium Alloy
Fits Belt Width: 6mm
Setscrews: 2 per pulley (included)

Package Contents

1× 2GT Open Timing Belt – 5 Metres
5× GT2 Aluminium Timing Pulleys (16/20 Teeth, Bore 5mm)
10× Setscrews
1× Allen Key

Compatible With

Suitable for most FDM 3D printers using GT2 belt-driven systems, including popular cartesian and CoreXY designs (e.g. Ender series, Prusa-style, Voron, and similar builds).

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Frequently Asked Questions

Q: What 3D printer models are compatible with this GT2 timing belt and pulley kit?

A: This GT2 timing belt kit is designed to work with any FDM 3D printer that uses a GT2 (2mm pitch) belt drive system with 6mm wide belts and 5mm bore motor shafts. This includes popular machines such as Creality Ender 3/5 series, Anet, Prusa-style, Voron, Hypercube, and many other cartesian or CoreXY style printers.

Q: Are the 16-tooth and 20-tooth pulleys interchangeable on the same printer?

A: Both 16T and 20T pulleys share the same 5mm bore and 6mm belt width compatibility, so they can be used in compatible positions on your printer. However, swapping tooth counts will affect your printer's steps-per-mm setting and effective travel speed — be sure to update your firmware configuration accordingly after any change.

Q: How do I secure the pulleys to the motor shaft?

A: Each pulley comes pre-fitted with two setscrews and an Allen key is included in the kit. Simply slide the pulley onto the 5mm motor shaft, align it to the correct height, and tighten the setscrews firmly against the shaft (or against the flat of a D-shaft if applicable) for a secure, slip-free fit.

Q: Is 5 metres of belt enough for a full printer build or rebuild?

A: For most standard-size FDM printers (build volume up to ~300×300mm), 5 metres of GT2-6mm belt is typically sufficient to replace or install belts on both the X and Y axes, with some spare length remaining. Larger format printers may require additional belt length.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.