{"product_id":"green-pu-round-drive-belt-polyurethane-transmission-belt","title":"Green PU Round Drive Belt — Polyurethane Transmission Belt, Ø1.5mm to 18mm","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003ch2\u003eGreen PU Round Drive Belt — Reliable Polyurethane Transmission Belt for Light Conveyor \u0026amp; Machinery\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eWhen 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.\u003c\/p\u003e\n\u003cp\u003eEach 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.\u003c\/p\u003e\n\u003cp\u003eTypical 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003eℹ️\u003c\/span\u003e \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e 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.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Green PU Round Drive Belts\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Diameter Range\u003c\/strong\u003e — Available in 15 diameters from 1.5mm to 18mm, covering most light conveyor and transmission belt replacement needs without custom ordering.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible \u0026amp; Elastic Construction\u003c\/strong\u003e — Solid polyurethane core provides natural elasticity, allowing the belt to maintain tension around small-radius pulleys without cracking or permanent deformation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛢️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOil \u0026amp; Moisture Resistance\u003c\/strong\u003e — PU material resists light oils, mild chemicals, and moisture — a practical advantage over rubber belts in workshop and light industrial environments.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCut-to-Length Convenience\u003c\/strong\u003e — 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.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eLow-Noise Operation\u003c\/strong\u003e — The smooth PU surface runs quietly on grooved pulleys, reducing vibration and noise compared to chain or toothed belt drives in low-load applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBroad Application Fit\u003c\/strong\u003e — Suitable for woodworking machinery, packaging conveyors, textile equipment, and hobbyist drive systems — anywhere a round polyurethane transmission belt is specified.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — PU Round Drive Belt\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSolid Polyurethane (PU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCross-Section\u003c\/th\u003e\n\u003ctd\u003eRound (circular profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e1.5mm – 18mm (≈1\/16\" – 11\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Diameters\u003c\/th\u003e\n\u003ctd\u003e1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 15mm, 18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e1m (≈39.4\"), 2m (≈78.7\"), 3m (≈118.1\"), 5m (≈196.9\"), 10m (≈393.7\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePulley Compatibility\u003c\/th\u003e\n\u003ctd\u003eRound-groove (U-groove) and V-groove pulleys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eJoining Method\u003c\/th\u003e\n\u003ctd\u003eHeat splice (hot weld) or mechanical connector (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable Load\u003c\/th\u003e\n\u003ctd\u003eLight to medium duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Environment\u003c\/th\u003e\n\u003ctd\u003eIndoor; light oil\/moisture exposure acceptable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Type\u003c\/th\u003e\n\u003ctd\u003eFriction drive (non-toothed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 continuous length per unit ordered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eSizing Tip:\u003c\/strong\u003e 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.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right diameter for my machine?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I calculate the correct belt length?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the center-to-center distance between your pulleys, then use: \u003cstrong\u003eBelt Length ≈ 2 × Center Distance + π × Pulley Diameter\u003c\/strong\u003e. 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load or torque can this belt handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePolyurethane 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this belt suitable for outdoor or wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePolyurethane (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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pulley groove profile is compatible with this round belt?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eRound 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I join or splice this belt to make a continuous loop?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat machines or applications is this belt commonly used for?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003ediameter and length\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"1.5mm \/ Green \/ 1 meter","offer_id":52377856540946,"sku":"KEYLA015822x1","price":1.97,"currency_code":"USD","in_stock":true},{"title":"2mm \/ Green \/ 1 meter","offer_id":52377856573714,"sku":"KEYLA015823x1","price":1.97,"currency_code":"USD","in_stock":true},{"title":"2.5mm \/ Green \/ 1 meter","offer_id":52377856606482,"sku":"KEYLA015824x1","price":1.97,"currency_code":"USD","in_stock":true},{"title":"3mm \/ Green \/ 1 meter","offer_id":52377856639250,"sku":"KEYLA015825x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"3.5mm \/ Green \/ 1 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