What is the difference between the flanged and unflanged versions?

The flanged version includes raised side walls that keep the timing belt centered on the pulley. The unflanged version omits these flanges, useful in tandem pulley arrangements or open-frame designs with limited lateral clearance.

MXL Zahnrad Antrieb Riemenscheibe Zahnriemenrad CNC 3D Drucker Kugellager Pulley

Roll over image to zoom in Click on image to zoom

MXL Zahnrad Antrieb Riemenscheibe Zahnriemenrad CNC 3D Drucker Kugellager Pulley

HomeDIYer

No reviews

By HomeDIYer®

Modelle/Zähne: MXL 22T

Stile: Mit Zähnen

Bohrungsdurchmesser & Anwendbare Gurtbreite: 3mm & 6mm

Price:

$5.83 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

Share this product

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri 8:30 AM – 8:00 PM

WhatsApp Email Us

24-Hour Fast Ship

Arrives in 3–14 Days

Worldwide Shipping

30-Day Returns

1 tree planted with every purchase

MXL 22T Timing Pulley — Precision Drive Sprocket for CNC, 3D Printing & Robotics

When your motion system demands slip-free synchronization, a mismatched or worn pulley becomes the weakest link in your build. Engineers, makers, and small-batch manufacturers working on CNC routers, 3D printers, and automated conveyor systems rely on MXL timing pulleys to maintain exact positional accuracy across every axis.

These MXL 22-tooth timing pulleys are machined to accept MXL-profile toothed belts. Available with or without flanged teeth, they come in bore diameters of 3 mm (~0.118 in), 4 mm (~0.157 in), and 5 mm (~0.197 in), and are compatible with belt widths of 6 mm (~0.236 in), 10 mm (~0.394 in), and 15 mm (~0.591 in). The body is typically aluminum alloy, keeping rotating mass low while maintaining dimensional stability.

Typical use cases include X/Y-axis drive systems on desktop CNC routers, extruder and Z-axis assemblies on FDM 3D printers, and lightweight robotic arm joints where low backlash and repeatable positioning are critical. The MXL 22T timing pulley is also well-suited for DIY laser engravers and small pick-and-place automation platforms.

⚙️ Compatibility: Fits MXL-profile timing belts. Select bore diameter (3 / 4 / 5 mm) and belt width (6 / 10 / 15 mm) to match your shaft and belt specifications.

✅ Key Features of These MXL 22T Timing Pulleys

🔩 22-Tooth MXL Profile

Engineered to the MXL tooth standard for zero-slip synchronization with MXL timing belts, ensuring accurate step-to-distance ratios on every axis.

📐 Multiple Bore Options

Available in 3 mm, 4 mm, and 5 mm bore diameters to fit a wide range of motor shafts and drive spindles without custom machining.

📏 Three Belt Width Sizes

Compatible with 6 mm, 10 mm, and 15 mm wide MXL belts, letting you scale torque capacity and lateral stability to your application.

🔄 With or Without Flanges

Choose the flanged (Mit Zähnen) version for guided belt tracking, or the unflanged (Ohne Zähne) version for open-frame or tandem pulley configurations.

⚖️ Lightweight Aluminum Construction

Aluminum alloy body keeps rotational inertia low, reducing motor load and improving dynamic response in high-cycle CNC and 3D printing applications.

🔧 Set Screw Retention

Typically secured via one or two radial set screws (grub screws) for tool-free shaft locking and easy repositioning during assembly or maintenance.

📐 Technical Specifications — MXL Timing Pulley

Belt Profile	MXL (Miniature Extra Light)
Number of Teeth	22T
Bore Diameter	3 mm / 4 mm / 5 mm (See variant options)
Compatible Belt Width	6 mm / 10 mm / 15 mm (See variant options)
Flange Style	With teeth (flanged) / Without teeth (unflanged)
Material	Aluminum alloy
Finish	Natural anodized or bare aluminum
Shaft Retention	Set screw (grub screw)
MXL Pitch	2.032 mm (0.080 in)
Outside Diameter (approx.)	See variant options
Weight	See variant options

❓ Frequently Asked Questions

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

Measure your motor or drive shaft diameter with a caliper. This pulley is available in 3 mm, 4 mm, and 5 mm bore sizes. Select the bore that matches your shaft exactly — a loose fit will cause runout and positional error, while an oversized shaft will not insert. If your shaft is metric and falls between sizes, a 5 mm bore with a shaft adapter sleeve is a common solution.

What is the difference between the flanged (Mit Zähnen) and unflanged (Ohne Zähne) versions?

The flanged version includes raised side walls (flanges) that keep the timing belt centered on the pulley during operation — recommended for most single-pulley drive setups. The unflanged version omits these flanges, which is useful in tandem pulley arrangements where the belt is guided by the opposing pulley, or in open-frame designs with limited lateral clearance.

Which belt width should I select — 6 mm, 10 mm, or 15 mm?

Belt width affects load capacity and lateral stiffness. For lightweight 3D printer axes (e.g., CoreXY X/Y), 6 mm is standard. For CNC routers or heavier gantry systems, 10 mm or 15 mm provides greater tensile strength and reduces belt stretch under load. Always match the pulley belt-width variant to the actual width of your MXL belt.

Is this pulley compatible with GT2 or HTD belts?

No. This pulley is machined specifically for the MXL tooth profile (2.032 mm pitch). GT2 belts use a 2 mm pitch with a different tooth geometry, and HTD belts use a rounded profile — neither will mesh correctly with MXL pulleys. Using mismatched profiles causes skipping, accelerated wear, and loss of positional accuracy.

How is the pulley secured to the shaft?

The pulley is retained by one or two radial set screws (grub screws) threaded into the hub. Tighten with the appropriate hex key (typically 1.5 mm or 2 mm) after aligning the pulley to your desired position. For high-torque applications, applying a small amount of thread-locking compound to the set screw is recommended to prevent loosening under vibration.

Can I use this pulley in a 3D printer extruder drive?

MXL pulleys are primarily used for axis motion (X, Y, Z) rather than direct extruder drives, which typically use GT2 or hobbed gears. However, for custom extruder designs or indirect belt-driven extruder systems, an MXL 22T pulley with a 3 mm or 5 mm bore can be integrated where the belt path and gear ratio calculations support MXL pitch.

What is the pitch diameter and pitch of the MXL 22T pulley?

The MXL belt pitch is 2.032 mm (0.080 inches). For a 22-tooth pulley, the pitch circumference is 22 × 2.032 mm = 44.704 mm, giving a pitch diameter of approximately 14.22 mm (~0.560 in). This value is used to calculate steps-per-mm in firmware (e.g., Marlin, Klipper) for CNC and 3D printer motion systems.

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