MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm
MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm
MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm
MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm
MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm
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MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mmMXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mmMXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mmMXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mmMXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm

MXL 24T-180T Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 11mm

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Price:
$12.76 USD
Stock:
In stock (500 units), ready to be shipped

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Description

MXL Timing Belt Pulley — Precision CNC Drive for DIY Automation & Robotics

When your CNC router skips steps or your 3D printer loses position mid-print, the culprit is often a mismatched or worn timing pulley. Makers, hobbyists, and small-workshop engineers who demand repeatable, slip-free motion need a pulley that fits precisely and locks securely — every time.

These MXL timing belt pulleys feature a 2.032 mm (0.080 in) pitch profile machined to the MXL standard, with a consistent 11 mm (0.43 in) belt-contact width. Bore options span 8 mm to 15 mm (0.31 in – 0.59 in), paired with keyways ranging from 3×1.4 mm to 5×2.3 mm to prevent rotational slip. Tooth counts run from 24T through 180T, covering pitch diameters of approximately 15.5 mm (0.61 in) up to 116.3 mm (4.58 in). Two flange styles are available: K-type (flanged both sides) for smaller tooth counts, and BF-type (single-side flange with bolt-circle) for larger pulleys requiring shaft-end mounting.

Typical use cases include CNC router X/Y axis drives, RepRap and cartesian 3D printer motion systems, lightweight robotic arm joints, and DIY linear-actuator builds where low-backlash MXL belt drive systems are preferred over GT2 for fine-pitch positioning.

⚙️ Compatible with: MXL open-end and closed-loop timing belts, 11 mm belt width, 2.032 mm pitch. Verify bore diameter and keyway dimensions match your shaft before ordering.

✅ Key Features of These MXL Timing Belt Pulleys

🦷 Wide Tooth-Count Range (24T – 180T)

Choose the exact gear ratio your drive system needs. Smaller tooth counts (24T–40T) suit compact, high-speed axes; larger counts (70T–180T) deliver higher torque and smoother belt wrap for longer spans.

📐 MXL 2.032 mm Pitch Standard

Machined to the MXL (Miniature Extra Light) belt standard with 2.032 mm tooth pitch and 11 mm working width, ensuring direct interchangeability with any MXL-compatible belt on the market.

🔩 Keyway Bore for Positive Shaft Lock

Available keyway sizes — 3×1.4 mm, 4×1.8 mm, and 5×2.3 mm — mate with standard metric keys to eliminate rotational slip under load, critical for accurate CNC positioning.

🔄 K-type & BF-type Flange Options

K-type pulleys include flanges on both sides to retain the belt laterally. BF-type pulleys feature a single flange plus a bolt-circle pattern for face-mounting to motor hubs or shaft collars.

🏭 CNC-Machined Aluminum Construction

Lightweight aluminum alloy body keeps rotational inertia low — essential for rapid direction changes in CNC and 3D-printer applications — while maintaining dimensional accuracy across the full tooth profile.

📦 Single-Piece Packaging, Ready to Install

Each pulley ships individually, inspected and ready to mount. No additional machining required for standard bore sizes; simply match your shaft diameter and keyway, slide on, and secure.

📐 Technical Specifications — MXL Timing Belt Pulley

Belt Standard MXL (Miniature Extra Light)
Tooth Pitch 2.032 mm (0.080 in)
Belt Width (Drive Face) 11 mm (0.43 in)
Tooth Count Range 24T – 180T
Bore Diameter Range 8 mm – 15 mm (0.31 in – 0.59 in)
Keyway Options 3×1.4 mm / 4×1.8 mm / 5×2.3 mm
Flange Type K-type (double flange) / BF-type (single flange + bolt circle)
Material Aluminum alloy
Pitch Diameter (24T) ~15.5 mm (0.61 in)
Pitch Diameter (180T) ~116.3 mm (4.58 in)
Quantity per Order 1 piece
Bore & Keyway Fit See variant options

❓ Frequently Asked Questions

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

Match the tooth count to your desired drive ratio. Divide the driven pulley teeth by the driver pulley teeth to get the reduction ratio. For CNC axes, 20T–40T on the motor is common; for 3D printers, 20T is standard. Larger tooth counts increase torque but reduce speed at the same RPM.

What bore diameter and keyway should I select?

Measure your motor or shaft diameter precisely with calipers. Select the bore that matches your shaft (e.g., 8 mm, 10 mm, 12 mm). Then choose the keyway that corresponds to your shaft's existing keyway slot — 3×1.4 mm for smaller shafts, 4×1.8 mm for mid-range, and 5×2.3 mm for larger shafts. If your shaft has no keyway, consider a set-screw style pulley instead.

What is the difference between K-type and BF-type pulleys?

K-type pulleys have flanges on both sides of the belt groove, which keeps the belt centered and prevents it from walking off the pulley — ideal for open-loop belt runs. BF-type pulleys have one flange and a bolt-circle pattern on the opposite face, allowing the pulley to be bolted directly to a motor face plate or hub adapter, which is common in servo and stepper motor assemblies.

Are these pulleys compatible with GT2 belts?

No. MXL pulleys use a 2.032 mm pitch with a trapezoidal tooth profile, while GT2 pulleys use a 2.0 mm pitch with a curvilinear (rounded) tooth profile. Although the pitches are very close, the tooth shapes are not interchangeable. Always pair MXL pulleys with MXL belts for correct meshing and to avoid premature wear or skipping.

How strong and durable are aluminum MXL pulleys?

Aluminum alloy pulleys are well-suited for light-to-medium duty automation, CNC routing, and 3D printing where belt tension is moderate. For high-torque industrial applications with heavy belt loads, steel pulleys may be more appropriate. In typical DIY and maker applications, aluminum MXL pulleys provide excellent longevity when belt tension is set correctly.

Do these pulleys require any machining before installation?

No additional machining is required for standard bore and keyway sizes. Simply select the variant that matches your shaft diameter and keyway dimensions, slide the pulley onto the shaft, insert the key, and secure with a set screw or retaining ring as appropriate for your assembly. The bore and keyway are finish-machined to standard metric tolerances.

What belt width should I use with these pulleys?

These pulleys are designed for 11 mm wide MXL timing belts. Using a narrower belt (e.g., 6 mm) is possible but reduces load capacity and may cause belt tracking issues. Using a wider belt is not recommended as it will overhang the drive face. Always match belt width to the pulley's rated drive-face width for optimal performance.

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

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