{"product_id":"bore-2mm-miniature-deep-groove-ball-bearings-full-cage-rc-model-diy","title":"Bore 2mm Miniature Deep Groove Ball Bearings Full Cage for RC Model Toy Car DIY","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBore 2mm Miniature Deep Groove Ball Bearings — Precision Rolling Elements for RC Models and DIY Builds\u003c\/h2\u003e\n\u003cp\u003eWhen a seized or wobbly bearing ruins a carefully assembled RC car or precision DIY mechanism, the root cause is almost always an undersized or poorly toleranced component. Hobbyists, model builders, and mechanical DIY enthusiasts who work at the sub-5mm scale need bore 2mm miniature deep groove ball bearings that fit exactly, spin freely, and hold up through repeated use without play or noise.\u003c\/p\u003e\n\u003cp\u003eThese miniature deep groove ball bearings feature a 2mm bore (inner diameter) and a full-complement cage design that evenly distributes load across all rolling elements. The full cage construction reduces friction and prevents ball-to-ball contact, extending service life in high-speed, low-load applications. Outer diameter and width vary by specific part number — see variant options for confirmed dimensions.\u003c\/p\u003e\n\u003cp\u003eTypical applications include RC car wheel axles and steering pivots, small servo linkage pivot points, miniature gearbox shafts in toy mechanisms, and precision spindles in DIY robotics or instrumentation projects where a 2mm shaft diameter is specified.\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 2mm diameter shafts. Verify outer diameter and width against your housing before ordering. Suitable for RC models, toy cars, small motors, and light-duty DIY mechanical assemblies.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Bore 2mm Miniature 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\u003e2mm Precision Bore\u003c\/strong\u003e — Machined inner race sized for a 2mm shaft, providing a snug, concentric fit that eliminates radial play in RC axles and miniature spindles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eFull Cage Design\u003c\/strong\u003e — Evenly spaced rolling elements held by a full cage reduce friction, minimize noise, and prevent ball-to-ball contact during high-speed rotation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e \u003cstrong\u003eDeep Groove Raceway\u003c\/strong\u003e — The deep groove profile handles both radial and moderate axial loads, making these bearings versatile across RC steering, gearbox shafts, and pivot applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e \u003cstrong\u003eLow Starting Torque\u003c\/strong\u003e — Optimized internal clearance and smooth raceway finish allow free spinning with minimal drag — critical for battery-powered RC models where efficiency matters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eCorrosion-Resistant Construction\u003c\/strong\u003e — Bearing steel construction with consistent surface finish resists light moisture exposure encountered in indoor and outdoor RC use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e — Available in 1, 5, 10, and 20-piece quantities so you can stock spares for a single build or maintain a workshop supply for ongoing projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Miniature Deep Groove 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 Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCage Type\u003c\/th\u003e\n\u003ctd\u003eFull Cage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore (Inner Diameter)\u003c\/th\u003e\n\u003ctd\u003e2 mm (0.079 in)\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\u003eWidth\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBearing Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSealing\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eFactory-greased\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eRadial + Light Axial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Application\u003c\/th\u003e\n\u003ctd\u003eRC models, toy cars, DIY mechanisms, miniature gearboxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1 pcs \/ 5 pcs \/ 10 pcs \/ 20 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 confirm this bearing fits my RC car or model?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure your shaft diameter first — these bearings are designed for a 2mm bore. Then measure the housing bore (the hole the bearing sits in) and compare it to the outer diameter listed in the variant you select. If you cannot measure directly, check your RC car's parts list or manufacturer spec sheet for the bearing designation (e.g., MR52, MR62, MR72) and match it to the variant options available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a full cage and an open bearing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA full cage bearing uses a retainer that holds each ball in a separate pocket, preventing ball-to-ball contact. This reduces friction and heat at higher speeds compared to a full-complement (cageless) design. For RC cars and toy mechanisms that spin at moderate-to-high RPM, the full cage design typically delivers quieter, smoother operation and longer service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings suitable for outdoor RC use where moisture is present?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are made from bearing steel with a consistent surface finish that resists light moisture exposure. For occasional outdoor use on dry or slightly damp surfaces they perform reliably. For sustained wet or muddy conditions, consider a shielded or sealed variant (ZZ or 2RS suffix) which adds a physical barrier against water and debris ingress. Check the variant options or contact us to confirm sealing type.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these bearings in a DIY robotics or instrumentation project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The 2mm bore deep groove ball bearing is a common choice for miniature robot joints, encoder shafts, and small stepper motor output shafts where a 2mm diameter shaft is used. The deep groove raceway handles the combined radial and light axial loads typical in these applications. Confirm the outer diameter and width match your housing design before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many bearings should I order for a typical RC car build?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMost 1\/24 to 1\/18 scale RC cars use between 4 and 12 bearings depending on the drivetrain complexity. A 10-piece pack covers a full rebuild with a few spares. If you are building multiple cars or maintaining a workshop stock, the 20-piece option offers a better per-unit cost. The 1-piece and 5-piece options are ideal for single replacements or small prototype builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the SKU suffix (x1, x5, x10, x20) mean?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe suffix indicates the quantity per order: x1 = 1 piece, x5 = 5 pieces, x10 = 10 pieces, x20 = 20 pieces. All quantities are the same bearing — only the pack size differs. Select the quantity that matches your project needs using the Amount selector above.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install a miniature bearing without damaging it?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAlways press or tap on the ring being fitted — press on the inner race when fitting to a shaft, and press on the outer race when fitting into a housing. Never apply force through the rolling elements. For 2mm bore bearings, a correctly sized punch or a bearing press tool is recommended. Avoid hammering directly on the bearing face, as this can dent the raceways and cause premature failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"1 pcs","offer_id":52410361020690,"sku":"PENGJSCS00046x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"5 pcs","offer_id":52410361053458,"sku":"PENGJSCS00046x5","price":3.2,"currency_code":"USD","in_stock":true},{"title":"10 pcs","offer_id":52410361086226,"sku":"PENGJSCS00046x10","price":4.88,"currency_code":"USD","in_stock":true},{"title":"20 pcs","offer_id":52410361118994,"sku":"PENGJSCS00046x20","price":8.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of6_69d8ad57-53b9-47a5-aa15-03fb831683b0.jpg?v=1782434389","url":"https:\/\/homediyer.com\/products\/bore-2mm-miniature-deep-groove-ball-bearings-full-cage-rc-model-diy","provider":"HomeDIYer","version":"1.0","type":"link"}