MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm
MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm
MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm
MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm
MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm
MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm
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MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mmMXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mmMXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mmMXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mmMXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mmMXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm

MXL 24-100Teeth Timing Belt Pulley Pitch 2.032mm With Keyway CNC Drive Width 7mm

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Price:
$11.67 USD
Stock:
In stock (500 units), ready to be shipped

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Description

MXL Timing Belt Pulley with Keyway — Precise CNC Drive for Makers & Automation Builders

When your CNC router, 3D printer, or small automation rig demands slip-free, repeatable motion, a loose or mismatched pulley is the first thing that kills accuracy. Hobbyists, workshop builders, and lab technicians who rely on MXL-pitch belt drives need a pulley that fits the shaft cleanly, locks with a proper keyway, and stays true under continuous cycling loads.

These MXL timing belt pulleys feature a 2.032 mm (0.080 in) pitch profile machined to match standard MXL open-end and closed-loop belts. The drive face is 7 mm (0.276 in) wide, accommodating 6 mm MXL belts with side clearance. Bore options span 8–15 mm (0.315–0.591 in), and tooth counts run from 24 T to 100 T, giving you a wide gear-ratio range from a single product family. Two flange styles are available: K-type (flanged both sides) and BF-type (single-side flange with a flat back), each supplied with a precision-cut keyway — 3×1.4 mm, 4×1.8 mm, or 5×2.3 mm depending on the variant — for positive shaft engagement without set-screw slippage.

Typical use cases include MXL belt-driven CNC axis drives where backlash must stay under 0.1 mm, compact 3D printer extruder and motion systems using MXL closed-loop belts, and small conveyor or indexing table builds in educational labs or light industrial fixtures requiring a reliable timing-pulley-with-keyway solution.

⚙️ Compatibility: Fits standard MXL open-end and closed-loop timing belts with 6 mm width. Bore sizes 8 / 10 / 12 / 12.7 / 14 / 15 mm. Keyway dimensions vary by variant — confirm bore and keyway size before ordering.

✅ Key Features of These MXL Timing Belt Pulleys

📐
2.032 mm MXL Pitch

Matches all standard MXL belt profiles for accurate, low-backlash power transmission in CNC and automation drives.

🔩
Precision Keyway Included

Each pulley ships with a machined keyway (3×1.4 mm, 4×1.8 mm, or 5×2.3 mm) for positive shaft locking — no set-screw-only reliance.

📏
Wide Tooth Count Range: 24 T – 100 T

Select the exact gear ratio your drive system needs without sourcing from multiple suppliers.

🔄
K-type & BF-type Flange Options

K-type offers dual-side flanges for belt retention; BF-type provides a flat back for space-constrained mounting configurations.

🎯
Multiple Bore Sizes: 8–15 mm

Bore options cover the most common shaft diameters used in NEMA stepper motors and small servo drives.

🏗️
7 mm Drive Width

Designed for 6 mm MXL belts with side clearance, keeping the drive compact for tight frame builds in 3D printers and CNC routers.

📐 Technical Specifications — MXL Timing Belt Pulley

Belt Profile MXL (Miniature Extra Light)
Pitch 2.032 mm (0.080 in)
Drive Width 7 mm (0.276 in)
Compatible Belt Width 6 mm
Number of Teeth 24 T – 100 T (see variant options)
Bore Diameter 8 / 10 / 12 / 12.7 / 14 / 15 mm (see variant options)
Keyway Dimensions 3×1.4 mm / 4×1.8 mm / 5×2.3 mm (see variant options)
Flange Type K-type (dual flange) / BF-type (single flange flat back)
Material See variant options
Finish / Colour See variant options
Weight See variant options
Quantity per Order 1 Pcs

❓ Frequently Asked Questions

How do I choose the right tooth count for my drive system?

Tooth count determines your drive ratio. Divide the driven pulley teeth by the driving pulley teeth to get the ratio. For a 1:1 ratio use matching tooth counts on both ends. For speed reduction, use a larger tooth count on the driven side. Common starting points for CNC axis drives are 20 T – 40 T on the motor side.

Which bore size should I select for a NEMA 17 stepper motor?

NEMA 17 stepper motors typically have a 5 mm output shaft. However, these pulleys start at 8 mm bore. If you are using a NEMA 17, you will need a shaft adapter or a different pulley series. For NEMA 23 motors with 6.35 mm or 8 mm shafts, the 8 mm bore variant with a 3×1.4 mm keyway is a common fit — confirm your motor shaft diameter before ordering.

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

K-type pulleys have flanges on both sides of the belt groove, which helps keep the belt centered and prevents it from walking off the pulley under lateral load. BF-type pulleys have a flange on one side and a flat back on the other, making them easier to mount flush against a frame wall or bearing block where space is limited.

Will these pulleys work with MXL closed-loop (endless) timing belts?

Yes. The 2.032 mm MXL pitch profile is compatible with both MXL open-end and MXL closed-loop (endless) timing belts of 6 mm width. Verify the belt width matches the 7 mm drive face — 6 mm belts are the standard match for this pulley series.

How strong is the keyway connection — can I rely on it without a set screw?

A properly fitted keyway provides positive mechanical engagement between the shaft and pulley, distributing torque across the key contact area rather than relying solely on friction. For most light-to-medium CNC and automation loads this is sufficient. For high-torque or high-vibration applications, adding a set screw over the keyway is recommended as a secondary retention measure.

Are these pulleys corrosion-resistant for use in humid or outdoor environments?

The corrosion resistance depends on the specific material and finish of the variant you select. For humid or mildly corrosive environments, look for variants with an anodized or coated finish. For outdoor or wash-down applications, contact us to confirm the material specification before ordering.

Can I use these pulleys in a 3D printer belt drive?

Yes, MXL pulleys are used in some 3D printer designs, particularly older or custom-built machines. Note that GT2 (2 mm pitch) is more common in modern 3D printers. If your printer specifically calls for MXL belts and pulleys, these are a direct fit. Confirm the tooth count and bore match your printer's motion system specifications.

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

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