GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width
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GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt WidthGT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width

GT2 Pulley 30/36/40/48/60 Teeth Timing Belt Pulley 2 mm Pitch 6 mm Belt Width

HomeDIYer
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By HomeDIYer®

Price:
$8.70 USD
Stock:
In stock (500 units), ready to be shipped

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Description

GT2 Timing Belt Pulley — Precision Drive for 3D Printers, CNC & Robotics

When your motion system demands repeatable, slip-free power transfer, a mismatched or worn pulley is the first thing that derails your project. Makers, engineers, and workshop builders who rely on GT2 belt drives need a pulley that holds tight tolerances across thousands of cycles — whether you're dialing in a CoreXY 3D printer, tuning a CNC router axis, or assembling a custom robotic arm.

These GT2 timing belt pulleys feature a 2 mm pitch GT2 tooth profile and a 6 mm belt width, machined to accept bores ranging from 5 mm to 12 mm (approximately 0.197 in to 0.472 in). Tooth counts span 30, 36, 40, 48, and 60 teeth, giving you a wide gear-ratio selection from a single product family. The body is machined from aluminum alloy with a natural or anodized finish and includes integrated flanges to keep the belt tracking true.

Typical use cases include GT2 belt-driven 3D printer X/Y axes (CoreXY, Cartesian, and delta configurations), CNC router stepper-motor drive shafts, lightweight robotic joint actuators, and DIY linear-motion automation rigs where low backlash and consistent pitch are non-negotiable.

✅ Compatibility: Designed for standard GT2 2 mm pitch timing belts, 6 mm wide. Verify your bore diameter and tooth count before ordering. Fits common NEMA 17 and NEMA 23 stepper motor shaft sizes (5 mm, 6 mm, 6.35 mm, 8 mm, 10 mm, 12 mm bores available).

✅ Key Features of These GT2 Timing Belt Pulleys

⚙️
GT2 2 mm Pitch Tooth Profile

Engineered to the GT2 standard for smooth, low-noise meshing with 6 mm GT2 belts — minimizing backlash in precision motion systems.

🔩
Wide Bore Selection

Available in 5, 6, 6.35, 7, 8, 10, and 12 mm bore diameters to match NEMA 17, NEMA 23, and other common motor shaft sizes without adapters.

🦷
Five Tooth-Count Options

Choose from 30, 36, 40, 48, or 60 teeth to dial in your drive ratio, linear resolution, or torque multiplication for each axis or joint.

🏗️
Aluminum Alloy Construction

Machined aluminum body keeps rotating mass low while providing the rigidity needed for consistent belt tension and long service life.

🛡️
Integrated Belt Flanges

Dual flanges on each pulley prevent lateral belt walk, reducing wear and keeping your drive system aligned under dynamic loads.

📦
Flexible Pack Quantities

Order as 1, 5, or 10 pieces per variant — ideal for single-axis builds, multi-axis machines, or stocking your workshop for future projects.

📐 Technical Specifications — GT2 Timing Belt Pulley

Belt Profile GT2
Pitch 2 mm
Belt Width 6 mm
Tooth Count 30 / 36 / 40 / 48 / 60 (see variant options)
Bore Diameter 5 / 6 / 6.35 / 7 / 8 / 10 / 12 mm (see variant options)
Material Aluminum alloy
Flanges Dual integrated flanges
Set Screw See variant options
Outer Diameter See variant options
Hub Length See variant options
Pack Quantity 1 PCS / 5 PCS / 10 PCS (see variant options)
Finish Natural aluminum / anodized

❓ Frequently Asked Questions

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

Tooth count determines your drive ratio and linear resolution. A 20-tooth motor pulley paired with a 40-tooth idler gives a 2:1 reduction. For 3D printers, 20T is common on the motor side; for CNC routers, 30T–40T on the motor shaft reduces belt tension requirements. Match your tooth count to your steps-per-mm calculation and desired torque.

Which bore size fits a NEMA 17 stepper motor?

Standard NEMA 17 stepper motors have a 5 mm output shaft. Select the 5 mm bore variant. Some NEMA 17 motors ship with a 1/4 inch (6.35 mm) shaft — check your motor datasheet before ordering. NEMA 23 motors typically use an 8 mm or 1/4 inch shaft.

Are these pulleys compatible with standard GT2 open-loop belts?

Yes. These pulleys are machined to the GT2 2 mm pitch standard and are compatible with any GT2 6 mm wide timing belt — open-loop or closed-loop. Ensure your belt width is 6 mm; GT2 belts also come in 10 mm and wider widths that will not seat correctly on these flanges.

How strong are aluminum GT2 pulleys compared to plastic ones?

Aluminum alloy pulleys offer significantly greater rigidity and dimensional stability than injection-molded plastic alternatives. They resist deformation under belt tension, maintain tooth geometry over time, and handle higher operating temperatures — making them the preferred choice for CNC routers, laser cutters, and any application with sustained loads.

Do these pulleys resist corrosion?

Aluminum naturally forms a thin oxide layer that provides moderate corrosion resistance in typical indoor workshop environments. For humid or outdoor applications, choose an anodized finish variant where available, or apply a light protective coating after installation.

Can I use these pulleys as idler pulleys without a motor shaft?

These pulleys are designed as drive pulleys with a set-screw bore for motor shaft attachment. To use them as idler pulleys, you would need to mount them on a smooth shaft or bolt with appropriate bearings. Dedicated flanged idler pulleys with integrated bearings are generally a better choice for idler positions.

What quantity should I order for a CoreXY 3D printer build?

A typical CoreXY motion system uses two motor pulleys (one per stepper) and several idler pulleys. For the motor-side drive pulleys, ordering a 2-pack or the 5 PCS variant gives you spares for future builds or replacements. Check your printer's BOM for the exact tooth count required — most CoreXY designs specify 20T, but some use 16T or other counts not in this range.

🛒 Select your Tooth count, Bore diameter, and Pack quantity above, then add to cart.

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