{"product_id":"625zz-nylon-pulley-guide-wheels-5x22x7mm","title":"Nylon Plastic Plane Pulley Guide Wheels 625ZZ Deep Groove Ball Bearing 5x22x7mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e625ZZ Nylon Pulley Guide Wheels — Smooth, Quiet Rolling for DIY Automation\u003c\/h2\u003e\n\u003cp\u003eWhen your 3D printer carriage skips, your CNC gantry wobbles, or your belt-driven axis loses tension, the culprit is often a worn or undersized guide wheel. Makers, hobbyists, and small-workshop builders who demand consistent motion control need a guide wheel that rolls true, resists wear, and fits standard hardware without modification.\u003c\/p\u003e\n\u003cp\u003eThese nylon plastic plane pulley guide wheels are built around a 625ZZ deep groove ball bearing with an outer race diameter of 22 mm (~0.87 in), a bore of 5 mm (~0.20 in), and a total width of 7 mm (~0.28 in). The nylon outer rim provides a smooth rolling surface while the sealed 625ZZ bearing handles radial loads quietly and with minimal friction.\u003c\/p\u003e\n\u003cp\u003eTypical applications include 625ZZ guide wheels for 3D printer V-slot extrusion systems, belt tensioner idler pulleys for CoreXY and Cartesian builds, and lightweight linear guide rollers for DIY CNC routers and laser engravers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits M5 bolt\/shaft (5 mm bore). Compatible with standard 2020\/2040 V-slot aluminum extrusion profiles and most open-belt motion systems using 625-series bearings.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 625ZZ Nylon Pulley Guide Wheels\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cstrong\u003e625ZZ Deep Groove Ball Bearing Core\u003c\/strong\u003e — Sealed steel bearing provides smooth, low-friction rotation and protects against dust and debris in workshop environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e\u003cstrong\u003eNylon Outer Rim\u003c\/strong\u003e — Lightweight, wear-resistant nylon reduces noise and vibration compared to all-metal wheels, ideal for precision motion systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003ePrecise 5×22×7 mm Dimensions\u003c\/strong\u003e — Standard 625ZZ footprint (5 mm bore, 22 mm OD, 7 mm width) ensures drop-in compatibility with common DIY motion hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔗\u003c\/span\u003e\u003cstrong\u003eV-Slot Extrusion Ready\u003c\/strong\u003e — Flat-face plane pulley profile rolls cleanly along V-slot and smooth-rail surfaces without derailing under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Pack Sizes\u003c\/strong\u003e — Available in 1 Pcs, 4 Pcs, and 10 Pcs quantities so you can stock exactly what your build or repair requires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e\u003cstrong\u003eTool-Free Shaft Mounting\u003c\/strong\u003e — Slides directly onto an M5 bolt or smooth rod; secure with a standard M5 nut and washer for immediate use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — 625ZZ Nylon Pulley Guide Wheel\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Model\u003c\/th\u003e\n\u003ctd\u003e625ZZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e5 mm (0.197 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e22 mm (0.866 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e7 mm (0.276 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRim Material\u003c\/th\u003e\n\u003ctd\u003eNylon (PA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eDeep Groove Ball Bearing, Double Shielded (ZZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft Compatibility\u003c\/th\u003e\n\u003ctd\u003eM5 bolt or 5 mm smooth rod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Type\u003c\/th\u003e\n\u003ctd\u003eRadial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Profile\u003c\/th\u003e\n\u003ctd\u003eFlat plane (smooth face)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit Weight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 Pcs \/ 4 Pcs \/ 10 Pcs (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat size bolt or shaft fits this pulley wheel?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese wheels have a 5 mm bore and are designed for M5 bolts or 5 mm smooth rods. Use an M5 nut and washer to secure the wheel in place. They will not fit M3 or M4 hardware without an adapter.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these wheels compatible with V-slot aluminum extrusion profiles?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The flat-face plane pulley profile rolls smoothly along V-slot and standard smooth-rail surfaces. They are commonly used with 2020 and 2040 V-slot extrusion in 3D printer and CNC builds. Note: these are flat-face wheels, not V-groove wheels — confirm your rail profile before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong are these wheels under load?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe 625ZZ bearing handles moderate radial loads suitable for 3D printer carriages, belt tensioners, and lightweight CNC gantries. For heavy-duty industrial loads exceeding several kilograms of continuous radial force, a steel-rimmed bearing wheel would be more appropriate.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the nylon rim wear out quickly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon (PA) offers good abrasion resistance for typical DIY motion applications. Under normal operating conditions — light to moderate loads, clean rail surfaces — the rim provides long service life. Avoid running the wheels on abrasive or heavily contaminated surfaces to maximize longevity.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the bearings sealed or open?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe 625ZZ designation indicates double-shielded (metal shields on both sides). The shields keep out dust and debris, reducing maintenance needs. They are not fully sealed rubber-contact seals (RS type), so avoid submerging them in liquids.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose between 1 Pcs, 4 Pcs, and 10 Pcs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eSelect 1 Pcs for a single replacement or test fit. Choose 4 Pcs if you are building a standard CoreXY or Cartesian 3D printer that typically uses 4–6 idler positions. The 10 Pcs pack offers the best per-unit value for full machine builds or workshop stock.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these be used as belt idler pulleys?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — the flat-face nylon rim works as a smooth idler for flat or round belts in low-tension applications. For toothed GT2 belts, a toothed idler pulley is recommended to prevent belt skipping; these flat wheels are best suited for the non-toothed (smooth) idler positions in a belt system.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your quantity (Amount) above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What size bolt or shaft fits this pulley wheel?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These wheels have a 5 mm bore and are designed for M5 bolts or 5 mm smooth rods. Use an M5 nut and washer to secure the wheel in place. They will not fit M3 or M4 hardware without an adapter.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these wheels compatible with V-slot aluminum extrusion profiles?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The flat-face plane pulley profile rolls smoothly along V-slot and standard smooth-rail surfaces. They are commonly used with 2020 and 2040 V-slot extrusion in 3D printer and CNC builds. Note: these are flat-face wheels, not V-groove wheels — confirm your rail profile before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong are these wheels under load?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 625ZZ bearing handles moderate radial loads suitable for 3D printer carriages, belt tensioners, and lightweight CNC gantries. For heavy-duty industrial loads exceeding several kilograms of continuous radial force, a steel-rimmed bearing wheel would be more appropriate.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will the nylon rim wear out quickly?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon (PA) offers good abrasion resistance for typical DIY motion applications. Under normal operating conditions — light to moderate loads, clean rail surfaces — the rim provides long service life. Avoid running the wheels on abrasive or heavily contaminated surfaces to maximize longevity.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are the bearings sealed or open?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 625ZZ designation indicates double-shielded (metal shields on both sides). The shields keep out dust and debris, reducing maintenance needs. They are not fully sealed rubber-contact seals (RS type), so avoid submerging them in liquids.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose between 1 Pcs, 4 Pcs, and 10 Pcs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Select 1 Pcs for a single replacement or test fit. Choose 4 Pcs if you are building a standard CoreXY or Cartesian 3D printer that typically uses 4–6 idler positions. The 10 Pcs pack offers the best per-unit value for full machine builds or workshop stock.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these be used as belt idler pulleys?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — the flat-face nylon rim works as a smooth idler for flat or round belts in low-tension applications. For toothed GT2 belts, a toothed idler pulley is recommended to prevent belt skipping; these flat wheels are best suited for the non-toothed (smooth) idler positions in a belt system.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1Pcs","offer_id":52446437441810,"sku":"FXL75-0","price":1.89,"currency_code":"USD","in_stock":true},{"title":"4Pcs","offer_id":52446437474578,"sku":"FXL75-1","price":5.1,"currency_code":"USD","in_stock":true},{"title":"10Pcs","offer_id":52446437507346,"sku":"FXL75-2","price":12.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of4_8a3e7360-d8e1-490e-829f-1216a640ed00.jpg?v=1784048116","url":"https:\/\/homediyer.com\/products\/625zz-nylon-pulley-guide-wheels-5x22x7mm","provider":"HomeDIYer","version":"1.0","type":"link"}