{"product_id":"aluminum-u-groove-pulley-wheels-30-80mm-pu-round-belt","title":"OD 30-80mm Aluminum U Groove Slide Gate, Pulley Wheels PU Round Belt 6\/8mm Width","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eAluminum U-Groove Pulley Wheels for Slide Gates \u0026amp; PU Round Belt Drives — Precise, Durable, Multi-Size\u003c\/h2\u003e\n\u003cp\u003eWhen your slide gate wobbles off track or your belt-drive system loses alignment, the culprit is almost always an undersized or poorly machined pulley. Engineers, fabricators, and automation builders who need a reliable, dimensionally consistent U-groove wheel — without sourcing custom parts — will find this aluminum pulley wheel series a direct solution. Available in outer diameters from 30mm to 80mm (1.18\" to 3.15\"), these wheels are designed to run PU round belts in 6mm or 8mm groove widths.\u003c\/p\u003e\n\u003cp\u003eEach pulley is machined from aluminum alloy, offering a lightweight yet rigid body with a smooth U-groove profile. The bore (hole size) ranges from 5mm to 15mm (0.20\" to 0.59\") depending on variant, and groove width is either 6mm or 8mm to match standard PU round belt diameters. The compact, single-piece construction keeps runout low and installation straightforward.\u003c\/p\u003e\n\u003cp\u003eThese wheels are widely used in residential and commercial slide gate systems, small CNC router belt drives, 3D printer filament guide assemblies, and light-duty conveyor or automation rigs where a U-groove pulley for round belt is required. The multi-size range lets builders standardize on one part family across different shaft diameters and load requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e Compatible with PU round belts in 6mm and 8mm diameters. Fits standard shaft sizes from 5mm to 15mm. Suitable for slide gates, CNC drives, 3D printers, and light automation systems.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Aluminum U-Groove Pulley Wheels\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eMulti-Size Range\u003c\/strong\u003e\n\u003cp\u003eOuter diameters from 30mm to 80mm (1.18\"–3.15\") and bore sizes from 5mm to 15mm cover a wide range of shaft and drive configurations in a single product family.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🪶\u003c\/span\u003e\u003cstrong\u003eAluminum Alloy Body\u003c\/strong\u003e\n\u003cp\u003eMachined aluminum construction keeps each wheel lightweight while maintaining the rigidity needed for consistent belt tracking and low deflection under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e〰️\u003c\/span\u003e\u003cstrong\u003eU-Groove Profile for Round Belts\u003c\/strong\u003e\n\u003cp\u003eThe precision-machined U-groove — available in 6mm or 8mm width — seats PU round belts securely, reducing belt slip and lateral wander in drive and guide applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🚪\u003c\/span\u003e\u003cstrong\u003eSlide Gate Ready\u003c\/strong\u003e\n\u003cp\u003eThe wheel geometry and bore options are well-suited for residential and commercial slide gate track systems, providing smooth rolling and reliable belt engagement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eConsistent Machined Tolerances\u003c\/strong\u003e\n\u003cp\u003eEach pulley is turned to consistent dimensional tolerances, keeping runout low and ensuring repeatable fit across multiple wheels in the same build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eBroad Application Compatibility\u003c\/strong\u003e\n\u003cp\u003eBeyond slide gates, these pulleys suit CNC router belt drives, 3D printer guide paths, light conveyor systems, and other automation builds requiring a U-groove round-belt pulley.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📐 Technical Specifications — Aluminum U-Groove Pulley Wheel\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\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e30mm \/ 40mm \/ 50mm \/ 60mm \/ 80mm (1.18\" \/ 1.57\" \/ 1.97\" \/ 2.36\" \/ 3.15\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore (Hole) Size\u003c\/th\u003e\n\u003ctd\u003e5mm \/ 6mm \/ 7mm \/ 8mm \/ 10mm \/ 12mm \/ 15mm — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGroove Width\u003c\/th\u003e\n\u003ctd\u003e6mm or 8mm — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Belt Type\u003c\/th\u003e\n\u003ctd\u003ePU Round Belt (6mm or 8mm diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural aluminum (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eItem Quantity\u003c\/th\u003e\n\u003ctd\u003e1 pcs per order (multi-pack options available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right outer diameter for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the OD to your drive ratio and available clearance. Smaller ODs (30–40mm) suit compact CNC or 3D printer builds with tight spacing. Larger ODs (60–80mm) are common in slide gate systems where a longer belt wrap and smoother rolling are needed. When in doubt, measure the existing pulley or calculate based on your desired belt speed and motor RPM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich groove width should I select — 6mm or 8mm?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect the groove width that matches your PU round belt diameter. A 6mm groove is designed for 6mm-diameter PU round belt; an 8mm groove fits 8mm-diameter PU round belt. Using a mismatched groove width will cause the belt to seat incorrectly and may lead to slipping or premature wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the correct bore (hole) size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe bore must match your shaft diameter. Measure your shaft with calipers and select the corresponding bore size (5mm, 6mm, 7mm, 8mm, 10mm, 12mm, or 15mm). If your shaft is slightly undersized, a set screw or keyway collar can compensate, but a direct bore match is recommended for best concentricity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this pulley suitable for outdoor slide gate use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum has natural corrosion resistance in most outdoor environments. For coastal or high-humidity locations, periodic cleaning and light lubrication of the bore and bearing interface are recommended to extend service life. The uncoated aluminum finish will develop a natural oxide layer that provides moderate protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these pulleys be used with V-belts or flat belts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. The U-groove profile is specifically designed for PU round belts (circular cross-section). V-belts require a V-groove pulley, and flat belts require a crowned or flat-face pulley. Using an incompatible belt type will result in poor tracking and accelerated belt wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a bearing or bushing, or is the bore ready to mount directly on a shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe bore is machined to accept a shaft directly. For rotating applications where the pulley spins on a fixed shaft, you should add a suitable bearing or bronze bushing inside the bore. For applications where the pulley is keyed or clamped to a rotating shaft, direct mounting with a set screw collar is typical. Bearings are not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load capacity can these pulleys handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese pulleys are designed for light-to-medium duty applications such as slide gates, small CNC drives, and 3D printer guide systems. Exact load ratings depend on bore fit, shaft support, and belt tension. For heavy industrial conveyor or high-tension drive applications, Contact us to confirm suitability before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Outer Diameter × Hole Size × Groove Width above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"30mm x 5mm x  6mm \/ 1 pcs","offer_id":52444860285202,"sku":"LXDPIDAILUN962x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 6mm x  6mm \/ 1 pcs","offer_id":52444860317970,"sku":"LXDPIDAILUN963x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 7mm x  6mm \/ 1 pcs","offer_id":52444860350738,"sku":"LXDPIDAILUN964x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 8mm x  6mm \/ 1 pcs","offer_id":52444860383506,"sku":"LXDPIDAILUN965x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 10mm x  6mm \/ 1 pcs","offer_id":52444860416274,"sku":"LXDPIDAILUN966x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 5mm x  8mm \/ 1 pcs","offer_id":52444860449042,"sku":"LXDPIDAILUN967x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 6mm x  8mm \/ 1 pcs","offer_id":52444860481810,"sku":"LXDPIDAILUN968x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 7mm x  8mm \/ 1 pcs","offer_id":52444860514578,"sku":"LXDPIDAILUN969x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 8mm x  8mm \/ 1 pcs","offer_id":52444860547346,"sku":"LXDPIDAILUN970x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"30mm x 10mm x  8mm \/ 1 pcs","offer_id":52444860580114,"sku":"LXDPIDAILUN971x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"40mm x 5mm x  6mm \/ 1 pcs","offer_id":52444860612882,"sku":"LXDPIDAILUN972x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 6mm x  6mm \/ 1 pcs","offer_id":52444860645650,"sku":"LXDPIDAILUN973x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 7mm x  6mm \/ 1 pcs","offer_id":52444860678418,"sku":"LXDPIDAILUN974x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 8mm x  6mm \/ 1 pcs","offer_id":52444860711186,"sku":"LXDPIDAILUN975x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 10mm x  6mm \/ 1 pcs","offer_id":52444860743954,"sku":"LXDPIDAILUN976x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 5mm x  8mm \/ 1 pcs","offer_id":52444860776722,"sku":"LXDPIDAILUN977x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 6mm x  8mm \/ 1 pcs","offer_id":52444860809490,"sku":"LXDPIDAILUN978x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 7mm x  8mm \/ 1 pcs","offer_id":52444860842258,"sku":"LXDPIDAILUN979x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 8mm x  8mm \/ 1 pcs","offer_id":52444860875026,"sku":"LXDPIDAILUN980x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"40mm x 10mm x  8mm \/ 1 pcs","offer_id":52444860907794,"sku":"LXDPIDAILUN981x1","price":11.55,"currency_code":"USD","in_stock":true},{"title":"50mm x 5mm x  6mm \/ 1 pcs","offer_id":52444860940562,"sku":"LXDPIDAILUN982x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 6mm x  6mm \/ 1 pcs","offer_id":52444860973330,"sku":"LXDPIDAILUN983x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 7mm x  6mm \/ 1 pcs","offer_id":52444861006098,"sku":"LXDPIDAILUN984x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 8mm x  6mm \/ 1 pcs","offer_id":52444861038866,"sku":"LXDPIDAILUN985x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 10mm x  6mm \/ 1 pcs","offer_id":52444861071634,"sku":"LXDPIDAILUN986x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 12mm x  6mm \/ 1 pcs","offer_id":52444861104402,"sku":"LXDPIDAILUN987x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 15mm x  6mm \/ 1 pcs","offer_id":52444861137170,"sku":"LXDPIDAILUN988x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 5mm x  8mm \/ 1 pcs","offer_id":52444861169938,"sku":"LXDPIDAILUN989x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 6mm x  8mm \/ 1 pcs","offer_id":52444861202706,"sku":"LXDPIDAILUN990x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 7mm x  8mm \/ 1 pcs","offer_id":52444861235474,"sku":"LXDPIDAILUN991x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 8mm x  8mm \/ 1 pcs","offer_id":52444861268242,"sku":"LXDPIDAILUN992x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 10mm x  8mm \/ 1 pcs","offer_id":52444861301010,"sku":"LXDPIDAILUN993x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 12mm x  8mm \/ 1 pcs","offer_id":52444861333778,"sku":"LXDPIDAILUN994x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"50mm x 15mm x  8mm \/ 1 pcs","offer_id":52444861366546,"sku":"LXDPIDAILUN995x1","price":13.18,"currency_code":"USD","in_stock":true},{"title":"60mm x 5mm x  6mm \/ 1 pcs","offer_id":52444861399314,"sku":"LXDPIDAILUN996x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 6mm x  6mm \/ 1 pcs","offer_id":52444861432082,"sku":"LXDPIDAILUN997x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 7mm x  6mm \/ 1 pcs","offer_id":52444861464850,"sku":"LXDPIDAILUN998x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 8mm x  6mm \/ 1 pcs","offer_id":52444861497618,"sku":"LXDPIDAILUN999x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 10mm x  6mm \/ 1 pcs","offer_id":52444861530386,"sku":"LXDPIDAILUN1000x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 12mm x  6mm \/ 1 pcs","offer_id":52444861563154,"sku":"LXDPIDAILUN1001x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 15mm x  6mm \/ 1 pcs","offer_id":52444861595922,"sku":"LXDPIDAILUN1002x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 5mm x  8mm \/ 1 pcs","offer_id":52444861628690,"sku":"LXDPIDAILUN1003x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 6mm x  8mm \/ 1 pcs","offer_id":52444861661458,"sku":"LXDPIDAILUN1004x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 7mm x  8mm \/ 1 pcs","offer_id":52444861694226,"sku":"LXDPIDAILUN1005x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 8mm x  8mm \/ 1 pcs","offer_id":52444861726994,"sku":"LXDPIDAILUN1006x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 10mm x  8mm \/ 1 pcs","offer_id":52444861759762,"sku":"LXDPIDAILUN1007x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 12mm x  8mm \/ 1 pcs","offer_id":52444861792530,"sku":"LXDPIDAILUN1008x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"60mm x 15mm x  8mm \/ 1 pcs","offer_id":52444861825298,"sku":"LXDPIDAILUN1009x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"80mm x 5mm x  6mm \/ 1 pcs","offer_id":52444861858066,"sku":"LXDPIDAILUN1010x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 6mm x  6mm \/ 1 pcs","offer_id":52444861890834,"sku":"LXDPIDAILUN1011x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 7mm x  6mm \/ 1 pcs","offer_id":52444861923602,"sku":"LXDPIDAILUN1012x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 8mm x  6mm \/ 1 pcs","offer_id":52444861956370,"sku":"LXDPIDAILUN1013x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 10mm x  6mm \/ 1 pcs","offer_id":52444861989138,"sku":"LXDPIDAILUN1014x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 12mm x  6mm \/ 1 pcs","offer_id":52444862021906,"sku":"LXDPIDAILUN1015x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 15mm x  6mm \/ 1 pcs","offer_id":52444862054674,"sku":"LXDPIDAILUN1016x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 5mm x  8mm \/ 1 pcs","offer_id":52444862087442,"sku":"LXDPIDAILUN1017x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 6mm x  8mm \/ 1 pcs","offer_id":52444862120210,"sku":"LXDPIDAILUN1018x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 7mm x  8mm \/ 1 pcs","offer_id":52444862152978,"sku":"LXDPIDAILUN1019x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 8mm x  8mm \/ 1 pcs","offer_id":52444862185746,"sku":"LXDPIDAILUN1020x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 10mm x  8mm \/ 1 pcs","offer_id":52444862218514,"sku":"LXDPIDAILUN1021x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 12mm x  8mm \/ 1 pcs","offer_id":52444862251282,"sku":"LXDPIDAILUN1022x1","price":20.11,"currency_code":"USD","in_stock":true},{"title":"80mm x 15mm x  8mm \/ 1 pcs","offer_id":52444862284050,"sku":"LXDPIDAILUN1023x1","price":20.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture11of11_ccd3e4f3-e018-4ca9-8ca7-51be1af49e8b.jpg?v=1783509382","url":"https:\/\/homediyer.com\/products\/aluminum-u-groove-pulley-wheels-30-80mm-pu-round-belt","provider":"HomeDIYer","version":"1.0","type":"link"}