{"product_id":"v-groove-aluminum-drive-pulley-oz-section-v-belt-od-40-80mm","title":"V-Groove Aluminum Drive Pulley For O(Z)-Section V-Belt Pulleys OD 40\/50\/60\/80mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eV-Groove Aluminum Drive Pulley for O\/Z-Section V-Belts — Precision Power Transmission for Makers and Engineers\u003c\/h2\u003e\n\u003cp\u003eWhen your CNC router, robotics platform, or DIY drive system demands reliable belt engagement without slippage or misalignment, the right pulley makes all the difference. These V-groove aluminum drive pulleys are engineered for builders, fabricators, and automation enthusiasts who need consistent torque transfer across a range of shaft sizes and center distances.\u003c\/p\u003e\n\u003cp\u003eEach pulley is machined from aluminum alloy with a single V-groove profile sized for standard O-section (also known as Z-section) V-belts. Available in four outer diameters — 40mm (~1.57\"), 50mm (~1.97\"), 60mm (~2.36\"), and 80mm (~3.15\") — with bore diameters ranging from 7mm to 32mm to suit common motor and shaft standards. Hub depth is typically 20–35mm depending on OD size.\u003c\/p\u003e\n\u003cp\u003eTypical applications include small CNC machine spindle drives, conveyor belt systems for maker projects, robotics joint actuators requiring V-belt reduction, and DIY lathe or drill press speed-change setups. The aluminum construction keeps rotating mass low while maintaining the dimensional accuracy needed for smooth, long-running belt drives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for standard O-section \/ Z-section V-belts. Verify bore diameter matches your shaft before ordering. Set screw or keyway machining may be required for final shaft fitment.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These V-Groove Aluminum Drive Pulleys\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eO\/Z-Section V-Belt Groove\u003c\/strong\u003e — Single groove profile precisely matched to standard O-section (Z-section) V-belt cross-sections for positive belt seating and minimal slip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🪶\u003c\/span\u003e\u003cstrong\u003eAluminum Alloy Construction\u003c\/strong\u003e — Lightweight yet rigid aluminum body reduces rotational inertia, making it well-suited for variable-speed and servo-driven applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eFour OD Options: 40 \/ 50 \/ 60 \/ 80mm\u003c\/strong\u003e — Select the outer diameter that matches your required speed ratio and center distance, covering a wide range of DIY and light-industrial drive configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\u003cstrong\u003eWide Bore Range: 7mm to 32mm\u003c\/strong\u003e — Bore options span common motor shaft and gearbox output shaft sizes, reducing the need for custom bushing adapters in most builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e\u003cstrong\u003eBalanced Machined Profile\u003c\/strong\u003e — Turned and faced to consistent dimensional tolerances, supporting smooth rotation and reduced vibration at operating speeds typical of light-duty drive systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cstrong\u003eVersatile Fitment for DIY Builds\u003c\/strong\u003e — Compatible with standard V-belt drive layouts used in CNC machines, robotics frames, conveyor systems, and workshop equipment modifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — V-Groove Drive Pulley\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBelt Section\u003c\/th\u003e\n\u003ctd\u003eO-section \/ Z-section V-belt\u003c\/td\u003e\n\u003c\/tr\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\u003e40mm \/ 50mm \/ 60mm \/ 80mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e7mm – 32mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Grooves\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Depth\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural aluminum (machined)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\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 OD for my drive system?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe outer diameter determines your speed ratio when paired with a driven pulley. Divide the driver OD by the driven OD to get the approximate speed ratio. For example, a 40mm driver with an 80mm driven pulley gives a 2:1 reduction. Choose the OD combination that achieves your target RPM at the driven shaft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich bore diameter should I select for my motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure your motor or gearbox output shaft diameter with a caliper and select the matching bore. Common sizes include 8mm, 10mm, 12mm, and 14mm for small motors. If your shaft is between listed sizes, select the next larger bore and use a shaft collar or loctite-style retaining compound, or have the bore machined to an exact fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this pulley compatible with A-section or B-section V-belts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. This pulley is specifically grooved for O-section (Z-section) V-belts, which have a narrower cross-section than A or B section belts. Using an A or B section belt in an O\/Z groove will result in poor seating, accelerated belt wear, and reduced power transmission efficiency. Always match belt section to pulley groove profile.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the pulley come with a set screw or keyway?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe pulley bore is supplied as a plain bore. Set screw tapping or keyway cutting is not included as standard. For most DIY and light-duty applications, a set screw can be added with a tap and drill set. For higher-torque applications, we recommend having a keyway machined by a local machine shop to ensure secure shaft engagement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow corrosion-resistant is the aluminum pulley?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAluminum alloy offers good natural corrosion resistance in dry indoor environments typical of workshops, CNC enclosures, and robotics frames. For outdoor or high-humidity applications, applying a clear anodize coating or a light coat of corrosion-inhibiting spray will extend service life. Avoid prolonged contact with salt water or strong alkaline solutions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this pulley for a CNC router or laser cutter build?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These pulleys are well-suited for CNC router axis drives, laser cutter gantry systems, and similar light-CNC applications where O\/Z-section V-belts are used for motion transmission. Select the OD and bore that match your motor shaft and desired mechanical advantage. Ensure belt tension is set correctly to avoid premature wear on both the belt and pulley groove.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum RPM or load rating for these pulleys?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSpecific RPM and load ratings depend on the OD, bore, and application conditions. As a general guideline for aluminum V-belt pulleys of this size range, surface speeds up to approximately 10–20 m\/s are typical for light-duty drives. For critical load-bearing applications, consult a mechanical engineer to verify suitability based on your specific torque, speed, and duty cycle requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your OD and Bore Diameter above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"40mm \/ 7mm \/ 1Pcs","offer_id":52445418160402,"sku":"FXLGB802-0","price":9.72,"currency_code":"USD","in_stock":true},{"title":"40mm \/ 8mm \/ 1Pcs","offer_id":52445418193170,"sku":"FXLGB802-1","price":9.72,"currency_code":"USD","in_stock":true},{"title":"40mm \/ 10mm \/ 1Pcs","offer_id":52445418225938,"sku":"FXLGB802-2","price":9.72,"currency_code":"USD","in_stock":true},{"title":"40mm \/ 11mm \/ 1Pcs","offer_id":52445418258706,"sku":"FXLGB802-3","price":9.72,"currency_code":"USD","in_stock":true},{"title":"40mm \/ 12mm \/ 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