Green PU Round Drive Belt — Polyurethane Transmission Belt, Ø1.5mm to 18mm

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Beschreibung

 

Green PU Round Drive Belt — Reliable Polyurethane Transmission Belt for Light Conveyor & Machinery

When a worn or undersized drive belt causes slippage, noise, or uneven conveyor movement, the entire production line or workshop project grinds to a halt. Whether you are a machine repair technician, a small-shop woodworker, or a DIY enthusiast building a custom conveyor, finding a flexible, correctly sized round belt that stays on the pulley is critical. This green polyurethane round drive belt delivers consistent grip and smooth power transfer across a wide range of light-duty transmission setups.

Each order is a single continuous length of round polyurethane (PU) belt, available in diameters from 1.5mm (≈1/16") to 18mm (≈11/16") and lengths of 1 meter (≈39.4"), 2 meters (≈78.7"), 3 meters (≈118.1"), 5 meters (≈196.9"), or 10 meters (≈393.7"). The belt is made from solid polyurethane with a smooth, slightly elastic surface that conforms well to round-groove and V-groove pulleys. Select your diameter and length from the variant options above to get exactly what your machine requires.

Typical use cases include light conveyor belt replacement for packaging and sorting equipment, power transmission in woodworking lathes and scroll saws, and drive systems in textile machinery and small appliance motors — all scenarios where a flexible round polyurethane transmission belt outperforms flat or toothed alternatives in low-tension, high-speed applications.

ℹ️ Compatibility Note: Designed for round-groove (U-groove) and V-groove pulleys. Match belt diameter to your pulley groove width for optimal grip. Not intended for toothed (timing) pulley systems.

✅ Key Features of These Green PU Round Drive Belts

  • 📐Wide Diameter Range — Available in 15 diameters from 1.5mm to 18mm, covering most light conveyor and transmission belt replacement needs without custom ordering.
  • 🔄Flexible & Elastic Construction — Solid polyurethane core provides natural elasticity, allowing the belt to maintain tension around small-radius pulleys without cracking or permanent deformation.
  • 🛢️Oil & Moisture Resistance — PU material resists light oils, mild chemicals, and moisture — a practical advantage over rubber belts in workshop and light industrial environments.
  • ✂️Cut-to-Length Convenience — Sold in lengths up to 10 meters so you can cut to your exact loop requirement and splice using standard heat-welding or mechanical connectors.
  • 🔇Low-Noise Operation — The smooth PU surface runs quietly on grooved pulleys, reducing vibration and noise compared to chain or toothed belt drives in low-load applications.
  • 🏭Broad Application Fit — Suitable for woodworking machinery, packaging conveyors, textile equipment, and hobbyist drive systems — anywhere a round polyurethane transmission belt is specified.

📐 Technical Specifications — PU Round Drive Belt

Material Solid Polyurethane (PU)
Color Green
Cross-Section Round (circular profile)
Diameter Range 1.5mm – 18mm (≈1/16" – 11/16")
Available Diameters 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 15mm, 18mm
Available Lengths 1m (≈39.4"), 2m (≈78.7"), 3m (≈118.1"), 5m (≈196.9"), 10m (≈393.7")
Pulley Compatibility Round-groove (U-groove) and V-groove pulleys
Joining Method Heat splice (hot weld) or mechanical connector (sold separately)
Suitable Load Light to medium duty
Operating Environment Indoor; light oil/moisture exposure acceptable
Drive Type Friction drive (non-toothed)
Quantity per Order 1 continuous length per unit ordered
⚠️ Sizing Tip: If your required loop length falls between available meter options, order the next size up and trim to length before splicing. Always confirm pulley groove diameter before ordering.

❓ Frequently Asked Questions

How do I choose the right diameter for my machine?

Match the belt diameter to your pulley groove width. Typically, the belt should fit snugly in the groove without excessive slack. For example, a 3mm groove generally works best with a 3mm round belt. When in doubt, size down slightly for a tighter, more positive drive.

How do I calculate the correct belt length?

Measure the center-to-center distance between your pulleys, then use: Belt Length ≈ 2 × Center Distance + π × Pulley Diameter. Add 5–10% for stretch and joining overlap. Available lengths are 1m, 2m, 3m, 5m, and 10m — order the next size up if your calculation falls between options. For example, if you need 2.3m, order the 3m length.

What load or torque can this belt handle?

Polyurethane round belts are generally suited for light-to-medium duty transmission applications. Larger diameters (8mm–18mm) typically handle greater torque than smaller ones (1.5mm–4mm). For heavy industrial loads, consult your machine's specification sheet to confirm belt rating requirements before ordering.

Is this belt suitable for outdoor or wet environments?

Polyurethane (PU) offers good resistance to oils, mild chemicals, and moisture, making it more suitable for light-duty wet or oily environments than rubber belts. However, prolonged UV exposure or immersion in harsh solvents may degrade the material over time. For fully outdoor installations, consider adding UV shielding around the belt path.

What pulley groove profile is compatible with this round belt?

Round belts are designed for use with round-groove (U-groove) or V-groove pulleys. The groove radius should closely match the belt radius for optimal contact and minimal wear. Flat pulleys are generally not recommended as they reduce grip and accelerate belt wear on the contact edges.

Can I join or splice this belt to make a continuous loop?

Yes. PU round belts can typically be joined using a hot-splice technique (heat welding the cut ends together) or with a mechanical belt connector. Hot splicing generally produces a stronger, smoother joint. A heat gun or dedicated belt welding tool is recommended. Splicing tools are sold separately.

What machines or applications is this belt commonly used for?

This green PU round drive belt is commonly used in light conveyor systems, woodworking machinery (lathes, scroll saws, sanders), textile equipment, packaging lines, and small appliance drives. It is also popular for DIY and hobbyist projects requiring a flexible, smooth-running polyurethane transmission belt.

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

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