XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt
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XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive BeltXL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt

XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt

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Beschreibung

XL Timing Belt 5.08mm Pitch 10mm Wide — Reliable Closed-Loop Drive for Precision Motion Systems

When a slipping or worn drive belt causes positioning errors in your CNC router, 3D printer, or small-motor assembly, the entire project stalls. Makers, engineers, and repair technicians who need a drop-in XL timing belt replacement — or a spare for a new build — require a belt that matches standard XL pulley geometry exactly, without guesswork.

Each listing covers one closed-loop XL series timing belt with a 5.08mm (0.200") tooth pitch and 10mm (≈3/8") width. Available in 24 sizes from 70XL to 300XL, with perimeters ranging from 178mm (≈7.0") to 762mm (≈30.0"). The belt body is constructed from neoprene rubber with fiberglass tensile cord reinforcement and nylon tooth facing — a construction typical of industry-standard XL drive belts.

Typical applications include desktop CNC machines and routers requiring synchronized axis motion, FDM 3D printer X/Y gantry drives, small conveyor systems, and light-duty power transmission setups where a standard XL closed-loop timing belt is specified.

🔗 Compatibility: Fits all standard XL-profile pulleys (5.08mm / 0.200" pitch, 40° tooth angle). Designed for 10mm belt width — use with XL pulleys rated for 10mm or wider. Confirm your size using the perimeter listed in each variant name.

✅ Key Features of These XL Closed-Loop Timing Belts

  • ⚙️Standard XL Tooth Profile — 5.08mm pitch with 40° tooth angle matches any XL-series pulley for a positive, slip-free drive without belt-to-pulley alignment issues.
  • 📏24 Sizes in One Listing — Perimeters from 178mm (70XL) to 762mm (300XL) cover the most common XL timing belt sizes used in CNC, 3D printing, and light industrial drives.
  • 🔩Fiberglass Tensile Cord Core — Fiberglass reinforcement resists stretch under cyclic loading, maintaining consistent center distance and preserving step accuracy in stepper-motor-driven systems.
  • 🛡️Neoprene Rubber Body — Neoprene construction provides flexibility across a wide temperature range and offers moderate resistance to oils and moisture compared to natural rubber alternatives.
  • 🧵Nylon Tooth Facing — The nylon fabric tooth surface reduces friction against pulley grooves, extending belt service life in continuous-duty applications such as conveyor drives and automated feeders.
  • 🔄Closed-Loop Construction — Seamless loop design eliminates the splice-point weakness found in cut-to-length belts, making these XL drive belts suitable for high-cycle-count motion systems.

📐 Technical Specifications — XL Series Closed-Loop Timing Belt

Belt Series XL (Extra Light)
Tooth Pitch 5.08mm (0.200")
Tooth Angle 40°
Belt Width 10mm (≈3/8")
Available Sizes 70XL – 300XL (24 sizes)
Perimeter Range 178mm (≈7.0") – 762mm (≈30.0")
Belt Body Material Neoprene rubber
Tensile Cord Fiberglass
Tooth Facing Nylon fabric
Loop Type Closed loop (endless)
Compatible Pulley Profile Standard XL (5.08mm pitch)
Quantity per Order 1 piece
Operating Temperature See variant options
Max Power Rating Contact us to confirm (varies by speed and pulley diameter)
⚠️ Size Tip: The XL number equals the belt perimeter in tenths of an inch. Example: 150XL = 15.0" = 381mm. Each variant lists the exact perimeter in mm — match this to your drive system before ordering.

❓ Frequently Asked Questions

How do I choose the right XL timing belt size?

Match the belt's perimeter to your drive system's center distance and pulley tooth count. Each XL size number corresponds to tenths of an inch of belt perimeter — for example, 100XL has a perimeter of 10.0 inches (254mm). Measure your existing belt or calculate using the formula: Belt Length = 2 × Center Distance + π × (D1 + D2) / 2. When in doubt, size up slightly to avoid over-tensioning.

What does the 'XL' designation mean?

'XL' stands for Extra Light — an industry-standard tooth profile with a 5.08mm (0.200") pitch. XL belts are widely used in light-duty power transmission applications such as 3D printers, CNC machines, and small motors. They are interchangeable across manufacturers as long as the pitch and width match.

How much load can a 10mm-wide XL timing belt handle?

XL series belts are generally rated for light-to-medium duty applications. A 10mm-wide XL belt can typically transmit up to several hundred watts depending on operating speed and pulley diameter. For heavier industrial loads, consider upgrading to an L or H series belt. Contact us if you need to confirm load ratings for your specific application.

Can this belt be used outdoors or in wet conditions?

Standard XL timing belts with neoprene construction generally offer moderate resistance to moisture and mild chemicals. They are not typically recommended for prolonged outdoor UV exposure or immersion in petroleum-based oils and solvents without confirming material compatibility. For harsh environments, contact us to discuss material options.

Will this belt fit my existing XL pulley?

Yes — these belts follow the standard XL tooth profile (5.08mm pitch, 40° tooth angle), making them compatible with any standard XL-series pulley. Confirm your pulley is rated for 10mm belt width or wider. If your pulley is wider than 10mm, a belt guide flange is recommended to keep the belt centered.

How do I convert the XL size number to millimeters?

Multiply the XL number by 2.54 to get the perimeter in millimeters. For example: 100XL × 2.54 = 254mm. Alternatively, each unit equals 0.1 inch of perimeter, so 100XL = 10.0 inches = 254mm. The exact perimeter for each size is also listed in the variant name on this page.

What is the difference between a timing belt and a V-belt for my application?

Timing belts have teeth that mesh with matching pulley grooves, providing a positive, slip-free drive with precise speed ratios — essential for synchronized motion in CNC axes and stepper motor drives. V-belts rely on friction and can slip under load. If your application requires accurate positioning or a fixed speed ratio, a timing belt is the correct choice.

🛒 Select your width and size above, then add to cart — ships from our US warehouse.

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