{"product_id":"micro-deep-groove-ball-bearings-683-689-steel-motor","title":"Micro Deep Groove Ball Bearings 683 684 685 686 687 688 689 Steel for Motor","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eMicro Deep Groove Ball Bearings 683–689 — Compact Steel Bearings for Motors and Precision Assemblies\u003c\/h2\u003e\n\u003cp\u003eWhen a seized or noisy bearing brings a motor, RC drivetrain, or precision instrument to a halt, finding the exact replacement quickly matters. These micro deep groove ball bearings cover the 683 through 689 series, giving engineers, hobbyists, and repair technicians a single source for the most common miniature bearing sizes.\u003c\/p\u003e\n\u003cp\u003eEach bearing is constructed from steel with a deep groove raceway geometry. Available sizes span from 3×7×3 mm (0.118″×0.276″×0.118″) for the 683 up to 9×17×5 mm (0.354″×0.669″×0.197″) for the 689. Select your required inner diameter, outer diameter, and thickness from the variant options above.\u003c\/p\u003e\n\u003cp\u003eTypical applications include brushless and brushed DC motors, 3D printer extruder and axis assemblies, RC car and drone drivetrains, small gearboxes, and handheld power tools — anywhere a compact, low-friction radial bearing is needed to replace a worn micro bearing or complete a new build.\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 6xx-series micro bearing housings. Verify your bore diameter, outer diameter, and width before ordering. See variant options for exact dimensions.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Micro Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eDeep Groove Raceway\u003c\/strong\u003e\n\u003cp\u003eThe deep groove profile handles both radial and moderate axial loads, making these bearings suitable for high-speed motor shafts and oscillating mechanisms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eSteel Construction\u003c\/strong\u003e\n\u003cp\u003eSteel races and balls deliver the dimensional stability and load capacity required in motors, gearboxes, and precision instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eSeven Size Options (683–689)\u003c\/strong\u003e\n\u003cp\u003eInner diameters from 3 mm to 9 mm and outer diameters from 7 mm to 17 mm cover the most common miniature bearing footprints in a single listing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cstrong\u003eLow Rotational Friction\u003c\/strong\u003e\n\u003cp\u003ePrecision-ground raceways reduce drag, supporting efficient operation in brushless motors, spindles, and other speed-sensitive assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eDirect Drop-In Replacement\u003c\/strong\u003e\n\u003cp\u003eDimensions conform to standard 6xx-series micro bearing specifications, allowing direct substitution without housing modification in most applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n\u003cp\u003eOrder 1, 2, 5, 10, 20, or 50 pieces per variant to match a single repair job, a production run, or a workshop stock requirement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Micro Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Series\u003c\/th\u003e\n\u003ctd\u003e683, 684, 685, 686, 687, 688, 689\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e3 mm – 9 mm (0.118″ – 0.354″) — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e7 mm – 17 mm (0.276″ – 0.669″) — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth (Thickness)\u003c\/th\u003e\n\u003ctd\u003e3 mm – 5 mm (0.118″ – 0.197″) — See variant options\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\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeal \/ Shield\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eRadial + moderate axial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1, 2, 5, 10, 20, 50 Pcs\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 bearing size for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the shaft diameter (inner diameter), the housing bore (outer diameter), and the available axial space (width\/thickness). Match those three dimensions to the variant options — for example, a 5 mm shaft in a 11 mm housing with 5 mm of axial space calls for the 685 (5×11×5 mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 683, 684, 685, 686, 687, 688, and 689 bearing numbers?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach number designates a specific set of dimensions. The 683 is the smallest at 3×7×3 mm and the 689 is the largest at 9×17×5 mm. The number itself is an industry-standard designation — any bearing labeled 683 from any manufacturer shares the same bore, OD, and width.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings suitable for high-speed motors?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Deep groove ball bearings are the standard choice for high-speed radial applications such as brushless DC motors, spindle motors, and cooling fans. The steel construction and precision-ground raceways support the rotational speeds typical of these applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these bearings handle axial (thrust) loads?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eDeep groove ball bearings can accommodate moderate axial loads in addition to radial loads. For applications where axial loading is the primary force, a dedicated thrust bearing is more appropriate. For mixed radial and light axial loads — common in motors and gearboxes — these bearings are well suited.\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\u003eStandard steel bearings offer moderate corrosion resistance suitable for indoor and dry environments. For wet, humid, or chemically exposed environments, consider stainless steel variants. Contact us to confirm material options if corrosion resistance is a critical requirement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pieces should I order for a repair versus a production run?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eFor a single repair, the 1 or 2 Pcs option is the most economical. Workshop stock or small production runs typically benefit from the 10 or 20 Pcs packs. For larger production volumes, the 50 Pcs pack offers the best per-unit value. Select the quantity from the Amount variant above.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if a bearing needs to be replaced?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eCommon signs include audible grinding or clicking during rotation, increased drag or resistance when spinning the shaft by hand, visible pitting or discoloration on the races or balls, and excessive radial play when the shaft is wiggled. Any of these symptoms indicate the bearing should be replaced before further damage occurs to the surrounding assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size, type, and quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"3x7x3mm \/ 683 \/ 1 Pcs","offer_id":52410190758162,"sku":"BGMSHXJZC5885x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"3x7x3mm \/ 683 \/ 2 Pcs","offer_id":52410190790930,"sku":"BGMSHXJZC5885x2","price":2.14,"currency_code":"USD","in_stock":true},{"title":"3x7x3mm \/ 683 \/ 5 Pcs","offer_id":52410190823698,"sku":"BGMSHXJZC5885x5","price":2.79,"currency_code":"USD","in_stock":true},{"title":"3x7x3mm \/ 683 \/ 10 Pcs","offer_id":52410190856466,"sku":"BGMSHXJZC5885x10","price":3.96,"currency_code":"USD","in_stock":true},{"title":"3x7x3mm \/ 683 \/ 20 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