{"product_id":"deep-groove-ball-bearings-624z-629z-series-id-4-9mm-od-13-26mm-bearing-steel","title":"Deep Groove Ball Bearings 624Z-629Z Series ID 4-9mm OD 13-26mm Bearing Steel","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eDeep Groove Ball Bearings 624Z–629Z — Reliable Radial Support for Precision Applications\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or undersized bearing causes wobble, noise, or premature failure in your build, finding an exact-fit replacement matters. These deep groove ball bearings in the 624Z–629Z series are designed for hobbyists, makers, and engineers who need dependable radial load support in compact rotating assemblies — from RC vehicles and power tools to 3D printers and small motors.\u003c\/p\u003e\n\u003cp\u003eEach bearing is manufactured from bearing steel (chrome steel, GCr15 equivalent) with a single metal shield (Z suffix) on one side, providing a balance of dust protection and low friction. The series spans inner diameters of 4–9mm and outer diameters of 13–26mm, with widths of 5–8mm depending on the size selected. Available in packs of 1, 5, 10, or 50 pieces to suit both one-off repairs and bulk project needs.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include replacement bearings for brushless motor shafts (624Z, 625Z), skateboard wheel axle upgrades (626Z, 627Z), and precision spindle support in CNC router Z-axis assemblies or lathe tailstocks (628Z, 629Z) — all long-tail applications where dimensional accuracy and consistent radial clearance are critical.\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 standard 624Z–629Z bearing seats. Verify your shaft ID, housing OD, and width before ordering — select your size from the variant options above.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eBearing Steel Construction\u003c\/strong\u003e — Made from chrome steel (GCr15 equivalent) for consistent hardness, wear resistance, and dimensional stability across the full 624Z–629Z size range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eSingle Metal Shield (Z)\u003c\/strong\u003e — One-side metal shield reduces contamination ingress while maintaining lower drag torque compared to double-shielded or rubber-sealed variants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eCompact Dimensional Range\u003c\/strong\u003e — ID 4–9mm \/ OD 13–26mm \/ Width 5–8mm covers the most common miniature bearing seats in RC, robotics, and light machinery applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Order 1, 5, 10, or 50 pieces per size. Bulk packs (50 pcs) offer significant per-unit savings for production runs or workshop stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eDeep Groove Raceway Design\u003c\/strong\u003e — Handles both radial and moderate axial loads in either direction, making these suitable for applications with combined loading conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003eDirect-Fit Replacement Sizing\u003c\/strong\u003e — Dimensions conform to ISO 15 \/ JIS B 1521 miniature bearing standards, ensuring drop-in compatibility with OEM bearing seats using the same series designation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e624Z, 625Z, 626Z, 627Z, 628Z, 629Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e4mm \/ 5mm \/ 6mm \/ 7mm \/ 8mm \/ 9mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e13mm \/ 16mm \/ 19mm \/ 22mm \/ 24mm \/ 26mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e5mm \/ 5mm \/ 6mm \/ 7mm \/ 8mm \/ 8mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBearing Steel (Chrome Steel, GCr15 equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShield Type\u003c\/th\u003e\n\u003ctd\u003eSingle Metal Shield (Z — one side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eDeep Groove Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eRadial + moderate axial (both directions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eFactory-greased (light grease pre-applied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003ctd\u003eISO 15 \/ JIS B 1521 (miniature bearing series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1 pc \/ 5 pcs \/ 10 pcs \/ 50 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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 bearing size from the 624Z–629Z series?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bearing to your shaft's outer diameter (which becomes the bearing's inner diameter) and your housing's inner diameter (which becomes the bearing's outer diameter). For example, if your motor shaft is 5mm and your housing bore is 16mm, select the 625Z (5×16×5mm). Always confirm the width fits your housing depth before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings suitable for high-speed applications like brushless motors?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Chrome steel deep groove ball bearings in the 624Z–629Z range are widely used in brushless motors, spindles, and fans. The single metal shield keeps grease in and light debris out while allowing the bearing to run at moderate-to-high RPM. For very high-speed or high-temperature environments, confirm the grease specification meets your operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the \"Z\" suffix mean on these bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe \"Z\" suffix indicates a single metal shield on one side of the bearing. This protects the internal balls and raceway from dust and light contamination on the shielded side, while the open side allows for re-lubrication if needed. Double-shielded bearings carry a \"ZZ\" designation and are not included in this listing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion-resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eChrome steel (GCr15) bearings offer good wear resistance but are not inherently corrosion-resistant in wet or chemically aggressive environments. For outdoor, marine, or washdown applications, stainless steel bearings (e.g., 624-2RS stainless) would be more appropriate. These bearings are best suited for dry or lightly lubricated indoor mechanical assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these as direct replacements for OEM bearings with the same series number?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIn most cases, yes. The 624Z–629Z series follows ISO 15 \/ JIS B 1521 dimensional standards, so bearings with the same series designation from different manufacturers share the same ID, OD, and width. Always verify the dimensions on your existing bearing before ordering to confirm compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I order individual pieces or a bulk pack?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIf you need a single replacement for a repair, the 1-piece option is the most economical entry point. For project builds, workshop stock, or production runs where you anticipate using multiple bearings of the same size, the 5, 10, or 50-piece packs offer a lower per-unit cost. The 50-piece pack is particularly cost-effective for makers who regularly work with the same bearing size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the radial clearance class of these bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are supplied in standard CN (Normal) radial clearance, which is the most common specification for general-purpose applications including motors, pumps, and light machinery. If your application requires C3 (greater clearance for higher temperatures or press-fit installations) or C2 (tighter clearance for high-precision spindles), please contact us to confirm availability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your bearing size (ID×OD×Width) and quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"624Z 4*13*5 \/ 1","offer_id":52410762789138,"sku":"GLFBNHHSKDLJX1777x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"625Z 5*16*5 \/ 1","offer_id":52410762821906,"sku":"GLFBNHHSKDLJX1778x1","price":2.03,"currency_code":"USD","in_stock":true},{"title":"626Z 6*19*6 \/ 1","offer_id":52410762854674,"sku":"GLFBNHHSKDLJX1779x1","price":2.11,"currency_code":"USD","in_stock":true},{"title":"627Z 7*22*7 \/ 1","offer_id":52410762887442,"sku":"GLFBNHHSKDLJX1780x1","price":2.11,"currency_code":"USD","in_stock":true},{"title":"628Z 8*24*8 \/ 1","offer_id":52410762920210,"sku":"GLFBNHHSKDLJX1781x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"629Z 9*26*8 \/ 1","offer_id":52410762952978,"sku":"GLFBNHHSKDLJX1782x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"624Z 4*13*5 \/ 5","offer_id":52410762985746,"sku":"GLFBNHHSKDLJX1777x5","price":3.39,"currency_code":"USD","in_stock":true},{"title":"625Z 5*16*5 \/ 5","offer_id":52410763018514,"sku":"GLFBNHHSKDLJX1778x5","price":2.92,"currency_code":"USD","in_stock":true},{"title":"626Z 6*19*6 \/ 5","offer_id":52410763051282,"sku":"GLFBNHHSKDLJX1779x5","price":3.47,"currency_code":"USD","in_stock":true},{"title":"627Z 7*22*7 \/ 5","offer_id":52410763084050,"sku":"GLFBNHHSKDLJX1780x5","price":4.42,"currency_code":"USD","in_stock":true},{"title":"628Z 8*24*8 \/ 5","offer_id":52410763116818,"sku":"GLFBNHHSKDLJX1781x5","price":5.51,"currency_code":"USD","in_stock":true},{"title":"629Z 9*26*8 \/ 5","offer_id":52410763149586,"sku":"GLFBNHHSKDLJX1782x5","price":5.7,"currency_code":"USD","in_stock":true},{"title":"624Z 4*13*5 \/ 10","offer_id":52410763182354,"sku":"GLFBNHHSKDLJX1777x10","price":4.96,"currency_code":"USD","in_stock":true},{"title":"625Z 5*16*5 \/ 10","offer_id":52410763215122,"sku":"GLFBNHHSKDLJX1778x10","price":4.69,"currency_code":"USD","in_stock":true},{"title":"626Z 6*19*6 \/ 10","offer_id":52410763247890,"sku":"GLFBNHHSKDLJX1779x10","price":5.97,"currency_code":"USD","in_stock":true},{"title":"627Z 7*22*7 \/ 10","offer_id":52410763280658,"sku":"GLFBNHHSKDLJX1780x10","price":7.87,"currency_code":"USD","in_stock":true},{"title":"628Z 8*24*8 \/ 10","offer_id":52410763313426,"sku":"GLFBNHHSKDLJX1781x10","price":10.13,"currency_code":"USD","in_stock":true},{"title":"629Z 9*26*8 \/ 10","offer_id":52410763346194,"sku":"GLFBNHHSKDLJX1782x10","price":10.4,"currency_code":"USD","in_stock":true},{"title":"624Z 4*13*5 \/ 50","offer_id":52410763378962,"sku":"GLFBNHHSKDLJX1777x50","price":21.2,"currency_code":"USD","in_stock":true},{"title":"625Z 5*16*5 \/ 50","offer_id":52410763411730,"sku":"GLFBNHHSKDLJX1778x50","price":19.79,"currency_code":"USD","in_stock":true},{"title":"626Z 6*19*6 \/ 50","offer_id":52410763444498,"sku":"GLFBNHHSKDLJX1779x50","price":26.1,"currency_code":"USD","in_stock":true},{"title":"627Z 7*22*7 \/ 50","offer_id":52410763477266,"sku":"GLFBNHHSKDLJX1780x50","price":35.7,"currency_code":"USD","in_stock":true},{"title":"628Z 8*24*8 \/ 50","offer_id":52410763510034,"sku":"GLFBNHHSKDLJX1781x50","price":46.77,"currency_code":"USD","in_stock":true},{"title":"629Z 9*26*8 \/ 50","offer_id":52410763542802,"sku":"GLFBNHHSKDLJX1782x50","price":48.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of4_8d971d6d-ea2a-4b48-8fff-3782bbbcecf3.jpg?v=1782565888","url":"https:\/\/homediyer.com\/products\/deep-groove-ball-bearings-624z-629z-series-id-4-9mm-od-13-26mm-bearing-steel","provider":"HomeDIYer","version":"1.0","type":"link"}