{"product_id":"glass-ball-bearing-pom-plastic-deep-groove-waterproof","title":"Glass Ball Bearing POM Plastic Deep Groove Bearings Waterproof ID 6mm - 30mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eGlass Ball Bearings with POM Plastic Races — Corrosion-Free Performance in Wet \u0026amp; Sensitive Environments\u003c\/h2\u003e\n\u003cp\u003eWhen standard steel bearings corrode, seize, or contaminate a process, engineers and makers working in food-grade equipment, medical devices, aquatic systems, and chemical-exposure applications need a reliable alternative. These glass ball bearings with POM (polyoxymethylene) plastic deep groove races are engineered specifically for environments where metal simply cannot be used — delivering smooth, low-friction rotation without rust, magnetism, or electrical conductivity.\u003c\/p\u003e\n\u003cp\u003eEach bearing features precision-ground borosilicate or soda-lime glass balls seated in a POM plastic outer and inner race, forming a complete deep groove ball bearing assembly. Inner diameters span 6 mm to 30 mm (~0.24\" to 1.18\"), with outer diameters and widths varying by size — see variant options for exact dimensions. The all-plastic and glass construction keeps the total weight light, typically ranging from a few grams for the smallest sizes up to approximately 30–50 g for the largest.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include RC boat and drone pivot points requiring non-magnetic bearings, laboratory centrifuge and pump assemblies where metal contamination is unacceptable, food processing conveyor rollers and packaging machinery requiring FDA-compatible materials, and aquarium or hydroponics pump impellers exposed to continuous moisture. The waterproof, non-corroding design also suits saltwater fishing reel rebuilds and marine hardware where glass ball bearings for wet environments outperform conventional steel options.\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 These bearings follow standard deep groove ball bearing envelope dimensions. Confirm your bore (ID), outer diameter (OD), and width against your housing before ordering. Select the matching size variant above.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Glass Ball Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e \u003cstrong\u003eAll-Glass Rolling Elements\u003c\/strong\u003e — Borosilicate or soda-lime glass balls provide zero metallic contamination, making these bearings safe for food, pharmaceutical, and laboratory use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧱\u003c\/span\u003e \u003cstrong\u003ePOM Plastic Race Construction\u003c\/strong\u003e — The inner and outer races are machined from POM (Delrin-type) plastic, offering low friction, self-lubricating properties, and resistance to most acids, alkalis, and solvents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e \u003cstrong\u003eFully Waterproof \u0026amp; Corrosion-Resistant\u003c\/strong\u003e — No metal components means no rust, no oxidation, and no degradation in humid, submerged, or chemically aggressive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e \u003cstrong\u003eNon-Magnetic \u0026amp; Non-Conductive\u003c\/strong\u003e — Safe for use near sensitive electronics, MRI-adjacent equipment, and applications where electrical isolation is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eWide Size Range: ID 6 mm – 30 mm\u003c\/strong\u003e — Multiple bore sizes available to fit a broad range of shafts and housings; select your exact size from the variant options above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e — Available in packs of 1, 2, 5, 10, 20, or 50 per size, so you can order exactly what your project or production run requires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Glass 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\u003eBall Material\u003c\/th\u003e\n\u003ctd\u003eGlass (borosilicate or soda-lime)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRace Material\u003c\/th\u003e\n\u003ctd\u003ePOM (Polyoxymethylene) Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e6 mm – 30 mm (0.24\" – 1.18\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\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\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eSelf-lubricating (POM material); no grease required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWaterproof\u003c\/th\u003e\n\u003ctd\u003eYes — fully waterproof, no seals required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eResistant to water, mild acids, alkalis, and most solvents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnetic Properties\u003c\/th\u003e\n\u003ctd\u003eNon-magnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003eNon-conductive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically –20°C to +90°C (–4°F to +194°F)\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 per order\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 for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the shaft diameter that the bearing will sit on — this is your required Inner Diameter (ID). Then confirm the housing bore that the bearing's outer race must fit into (Outer Diameter). Finally, check the available axial space to ensure the bearing width fits. Select the matching ID variant above and contact us if you need OD\/width confirmation for a specific size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings strong enough for load-bearing applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eGlass ball bearings are suited for light to moderate radial loads in low-to-medium speed applications. They are not recommended for heavy impact loads or high-speed industrial machinery where steel bearings are the standard. They excel in precision instruments, pumps, food equipment, and hobby\/RC applications where corrosion resistance and contamination-free operation matter more than maximum load capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the glass balls break under normal use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePrecision glass balls used in bearings are manufactured to tight sphericity tolerances and are significantly harder and more durable than common glass. Under normal radial loads within the bearing's rated capacity, breakage is not a concern. Avoid shock loads, over-tightening, or misalignment, which can stress any bearing type regardless of ball material.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings compatible with water or chemical immersion?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Both the glass balls and POM plastic races are inherently waterproof and resistant to corrosion from water, mild acids, alkalis, and many common solvents. This makes them a reliable choice for aquatic pumps, marine hardware, hydroponics systems, and food-processing equipment exposed to wash-down cycles. For highly concentrated acids or specific chemical compatibility, contact us to confirm suitability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these bearings need lubrication?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePOM plastic is a self-lubricating material, so these bearings can operate dry without added grease or oil in most light-duty applications. If your application involves continuous high-speed rotation or elevated temperatures, a small amount of PTFE-based dry lubricant can be applied to reduce friction further without compromising the corrosion-resistant properties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these bearings in food or medical equipment?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe all-glass and POM plastic construction contains no metallic components, making these bearings suitable for environments where metal contamination must be avoided. POM is widely used in food-contact applications. However, for regulated food or medical device applications, please verify compliance with the specific standards applicable to your industry (e.g., FDA 21 CFR, EU 10\/2011) before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the bearing sizes listed (e.g., 2623, 2624)?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe numeric codes in the SKUs correspond to specific bearing dimension series — for example, 2623 refers to a bearing with a 3 mm ID, 2624 to a 4 mm ID, and so on, following a common miniature bearing naming convention. The ID listed in the product title (6 mm – 30 mm) covers the full range available across all variants. Select the variant that matches your required shaft diameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e\n\u003cp\u003e🛒 Select your bearing size and quantity above, then add to cart.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"8 x 22 x 7mm \/ 1 Pcs","offer_id":52410192134418,"sku":"BGMSHXJZC2623x1","price":1.89,"currency_code":"USD","in_stock":true},{"title":"8 x 22 x 7mm \/ 2 Pcs","offer_id":52410192167186,"sku":"BGMSHXJZC2623x2","price":2.14,"currency_code":"USD","in_stock":true},{"title":"8 x 22 x 7mm \/ 5 Pcs","offer_id":52410192199954,"sku":"BGMSHXJZC2623x5","price":2.79,"currency_code":"USD","in_stock":true},{"title":"8 x 22 x 7mm \/ 10 Pcs","offer_id":52410192232722,"sku":"BGMSHXJZC2623x10","price":3.96,"currency_code":"USD","in_stock":true},{"title":"8 x 22 x 7mm \/ 20 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