{"product_id":"flanged-ball-bearings-metal-shielded-deep-groove-2-10mm","title":"Flange Bearings Metal Shielded Deep Groove Flanged Ball Bearing 2\/3\/4\/5\/6\/8\/10mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eFlanged Ball Bearings — Metal Shielded Deep Groove Design for Precision Rotating Applications\u003c\/h2\u003e\n\u003cp\u003eWhen a standard bearing slips axially or lacks a positive seating surface, the result is vibration, misalignment, and premature wear. Engineers, hobbyists, and repair technicians who work with compact rotating assemblies need a flanged ball bearing that locks positively into a housing bore without additional retaining hardware. These metal shielded flanged deep groove ball bearings deliver exactly that — a rigid flange shoulder that seats flush against the housing face, eliminating axial float in one step.\u003c\/p\u003e\n\u003cp\u003eEach flanged ball bearing features a stamped steel flange integrated with a deep groove raceway, enclosed by dual metal shields on both sides. Inner diameter options span 2 mm (0.079 in) through 10 mm (0.394 in), with a long-body 4mm【L】variant for applications requiring additional axial depth. The outer diameter and width vary by bore size; refer to the variant options for exact dimensional pairing. The steel raceway and cage are pre-lubricated with grease suitable for moderate-speed, moderate-load duty cycles.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include RC car wheel hubs and drivetrain pivots, 3D printer extruder idlers and carriage rails, small DC motor end caps, CNC router spindle supports, and DIY robotics joint assemblies — anywhere a flanged deep groove ball bearing must resist both radial loads and light axial thrust while fitting a compact bore.\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 Note:\u003c\/strong\u003e These flanged ball bearings are dimensionally compatible with standard metric bore housings. The 4mm【L】variant has an extended outer ring width — confirm housing depth before ordering. Mix inner diameter and packing quantity options to match your project requirements.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Flanged Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eIntegrated Flange Shoulder\u003c\/strong\u003e\u003cbr\u003eThe stamped steel flange seats positively against the housing face, providing a built-in axial stop without snap rings or retaining clips — reducing assembly steps and part count.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eDual Metal Shields\u003c\/strong\u003e\u003cbr\u003eBoth sides of the bearing are enclosed by pressed steel shields that block debris and retain factory grease, extending service life in dusty or lightly contaminated environments.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Bore Range: 2–10mm\u003c\/strong\u003e\u003cbr\u003eEight inner diameter options (2 \/ 3 \/ 4 \/ 4【L】\/ 5 \/ 6 \/ 8 \/ 10mm) cover the most common compact metric bore sizes used in RC, 3D printing, robotics, and small motor applications.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eDeep Groove Raceway\u003c\/strong\u003e\u003cbr\u003eThe deep groove profile handles combined radial and light axial loads in both directions, making these bearings suitable for shafts subject to moderate thrust as well as radial forces.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cstrong\u003ePre-Greased for Ready Use\u003c\/strong\u003e\u003cbr\u003eEach bearing arrives pre-lubricated with general-purpose grease, ready to install without additional preparation — saving time during prototyping or production runs.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\u003cbr\u003eAvailable in 1-piece, 5-piece, and 10-piece packs so you can order a single replacement or stock up for a build run — with per-unit cost decreasing at higher quantities.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Flanged Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eDeep Groove Flanged Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShield Type\u003c\/th\u003e\n\u003ctd\u003eDual Metal Shields (both sides)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (Bore)\u003c\/th\u003e\n\u003ctd\u003e2 \/ 3 \/ 4 \/ 5 \/ 6 \/ 8 \/ 10mm — see variant options; 4mm【L】= extended width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlange Outer Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial — Rings \u0026amp; Shields\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCage Material\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003ePre-greased (general-purpose grease)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eRadial + light axial (both directions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically −10°C to +120°C (14°F to 248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 pcs \/ 5 pcs \/ 10 pcs — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eMetric\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 correct inner diameter for my shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure your shaft diameter with a caliper to the nearest 0.1mm. The bearing inner diameter should match the shaft diameter exactly for a proper interference or transition fit. For example, a 5mm shaft requires the 5mm bore variant. If your shaft is between standard sizes, select the next smaller bore and lightly ream or sand the shaft for a precise fit rather than using an oversized bearing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the standard 4mm and the 4mm【L】variant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 4mm【L】variant shares the same 4mm inner diameter but has an extended outer ring width (greater axial depth). This makes it suitable for housings that require a longer bearing seat — common in certain motor end caps and gearbox designs. Confirm your housing depth before ordering to ensure the longer body fits without bottoming out.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion-resistant for outdoor or humid environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings use steel rings and shields, which offer moderate corrosion resistance when the factory grease is intact. For consistently humid, wet, or salt-spray environments, consider stainless steel bearings instead. In typical indoor or intermittently damp conditions (RC cars, workshop equipment), the metal shields and grease provide adequate protection for normal service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these flanged ball bearings handle axial (thrust) loads?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes, the deep groove raceway design supports light-to-moderate axial loads in both directions in addition to radial loads. However, these are not dedicated thrust bearings. For applications where axial load is the dominant force — such as a vertical shaft carrying significant weight — a dedicated thrust bearing or angular contact bearing is more appropriate. For combined radial + light axial duty (typical in RC drivetrains, 3D printer carriages, and small motors), these flanged bearings are well suited.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to add grease before installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. Each bearing is pre-greased at the factory and ready to install. Avoid washing out the factory grease with solvents before installation. If the bearing will operate at elevated temperatures or in a high-speed application beyond typical hobby use, you may re-grease with a compatible bearing grease after removing the shields — but for most standard applications, the factory fill is sufficient for the bearing's service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I select between 1-piece, 5-piece, and 10-piece packs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eChoose the 1-piece pack for a single replacement or to test fitment before committing to a larger quantity. The 5-piece pack suits small builds or projects requiring multiple bearings of the same size (e.g., a 3D printer with 4–6 idler positions). The 10-piece pack offers the best per-unit value for production runs, stocking a workshop, or building multiple units of the same design. All packs contain identical bearings — only the quantity differs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat applications are these flanged ball bearings compatible with?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are widely used in RC car wheel hubs, steering knuckles, and drivetrain pivots; 3D printer extruder idlers, belt tensioners, and carriage linear guides; small DC and brushless motor end caps; CNC router spindle supports; DIY robotics joint assemblies; and general precision machinery where a compact metric bore flanged bearing is required. The flange shoulder makes them especially useful wherever a positive axial stop is needed without additional hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your inner diameter and packing quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"2mm \/ 1pcs","offer_id":52410321699090,"sku":"LFLKKMX2944x1","price":2.48,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 1pcs","offer_id":52410321731858,"sku":"LFLKKMX2945x1","price":2.68,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 1pcs","offer_id":52410321764626,"sku":"LFLKKMX2946x1","price":2.62,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 1pcs","offer_id":52410321797394,"sku":"LFLKKMX2947x1","price":2.68,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 1pcs","offer_id":52410321830162,"sku":"LFLKKMX2948x1","price":2.53,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 1pcs","offer_id":52410321862930,"sku":"LFLKKMX2949x1","price":2.62,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 1pcs","offer_id":52410321895698,"sku":"LFLKKMX2950x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"4mm【L】 \/ 1pcs","offer_id":52410321928466,"sku":"LFLKKMX2951x1","price":2.68,"currency_code":"USD","in_stock":true},{"title":"2mm \/ 5pcs","offer_id":52410321961234,"sku":"LFLKKMX2944x5","price":4.62,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 5pcs","offer_id":52410321994002,"sku":"LFLKKMX2945x5","price":5.62,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 5pcs","offer_id":52410322026770,"sku":"LFLKKMX2946x5","price":5.22,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 5pcs","offer_id":52410322059538,"sku":"LFLKKMX2947x5","price":5.47,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 5pcs","offer_id":52410322092306,"sku":"LFLKKMX2948x5","price":5.02,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 5pcs","offer_id":52410322125074,"sku":"LFLKKMX2949x5","price":5.67,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 5pcs","offer_id":52410322157842,"sku":"LFLKKMX2950x5","price":7.47,"currency_code":"USD","in_stock":true},{"title":"4mm【L】 \/ 5pcs","offer_id":52410322190610,"sku":"LFLKKMX2951x5","price":5.47,"currency_code":"USD","in_stock":true},{"title":"2mm \/ 10pcs","offer_id":52410322223378,"sku":"LFLKKMX2944x10","price":7.32,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 10pcs","offer_id":52410322256146,"sku":"LFLKKMX2945x10","price":9.15,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 10pcs","offer_id":52410322288914,"sku":"LFLKKMX2946x10","price":8.55,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 10pcs","offer_id":52410322321682,"sku":"LFLKKMX2947x10","price":9.76,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 10pcs","offer_id":52410322354450,"sku":"LFLKKMX2948x10","price":8.8,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 10pcs","offer_id":52410322387218,"sku":"LFLKKMX2949x10","price":10.27,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 10pcs","offer_id":52410322419986,"sku":"LFLKKMX2950x10","price":13.64,"currency_code":"USD","in_stock":true},{"title":"4mm【L】 \/ 10pcs","offer_id":52410322452754,"sku":"LFLKKMX2951x10","price":8.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of5_bbdd680e-377d-4294-936d-10b7e1bc83c2.jpg?v=1782405910","url":"https:\/\/homediyer.com\/products\/flanged-ball-bearings-metal-shielded-deep-groove-2-10mm","provider":"HomeDIYer","version":"1.0","type":"link"}