{"product_id":"pp-nylon-plastic-precision-ball-bearing-glass-balls-608-626-6000-6006","title":"PP Nylon Plastic Precision Ball Bearing Glass Ball Bearings 608 626 6000 - 6006","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003ch2 class=\"hdiy-overview\"\u003ePP Nylon Plastic Precision Ball Bearings with Glass Balls — Lightweight, Corrosion-Resistant Rolling Elements for Demanding Environments\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eWhen metal bearings corrode, add unwanted weight, or interfere with sensitive electronics, engineers and DIYers reach for a non-metallic alternative. These PP nylon plastic precision ball bearings with glass rolling elements are designed for applications where standard steel bearings fall short — including wet environments, food-adjacent machinery, and magnetically sensitive assemblies.\u003c\/p\u003e\n\u003cp\u003eEach bearing consists of a polypropylene (PP) nylon outer and inner race paired with precision glass balls. The range covers nine standard sizes from 626 (6×19×6 mm \/ 0.24\"×0.75\"×0.24\") through 6006 (30×55×13 mm \/ 1.18\"×2.17\"×0.51\"), with bore diameters spanning 6 mm to 30 mm. Available in packs of 1, 2, 5, 10, or 25 pieces to suit both prototyping and production runs.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include light-duty conveyor rollers in wash-down environments, 3D printer carriage assemblies where reduced rotating mass improves acceleration, RC vehicle wheel hubs requiring non-conductive bearings, and laboratory or medical equipment where metal contamination must be avoided. The glass ball construction also makes these bearings a practical choice for corrosion-resistant skateboard or inline skate wheel replacements in coastal or humid climates.\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 6-series dimensional conventions (ISO 15). They are dimensionally interchangeable with steel 608, 626, 6000–6006 bearings in the same bore\/OD\/width. Verify load ratings before substituting in high-speed or heavy-load applications.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These PP Nylon Plastic Precision Ball Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧪\u003c\/span\u003e\u003cstrong\u003eCorrosion-Resistant Construction\u003c\/strong\u003e — Polypropylene races resist moisture, mild acids, and alkalis that would pit or seize a steel bearing, extending service life in wet or chemically active environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e\u003cstrong\u003eSignificantly Reduced Weight\u003c\/strong\u003e — PP nylon has a density roughly one-seventh that of steel. Swapping to plastic bearings in rotating assemblies lowers rotational inertia and reduces overall component weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\u003cstrong\u003eLow-Noise, Smooth Rolling\u003c\/strong\u003e — Precision glass balls provide a consistent rolling surface with low vibration, making these bearings suitable for noise-sensitive applications such as office equipment or medical devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cstrong\u003eNon-Conductive \u0026amp; Non-Magnetic\u003c\/strong\u003e — Neither the PP races nor the glass balls conduct electricity or respond to magnetic fields, eliminating interference in electronic assemblies and MRI-adjacent equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eNine Standard Sizes (626 – 6006)\u003c\/strong\u003e — Bore diameters from 6 mm to 30 mm cover the most common 6-series applications. Each size is dimensionally compatible with the equivalent steel bearing designation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Pack Quantities (1 – 25 pcs)\u003c\/strong\u003e — Order a single bearing for a repair or 25 pieces for a production batch. Per-unit cost decreases with larger pack sizes, making bulk orders cost-effective.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — PP Nylon Plastic Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eDeep groove ball bearing (open, no seal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRace Material\u003c\/th\u003e\n\u003ctd\u003ePolypropylene (PP) nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRolling Element\u003c\/th\u003e\n\u003ctd\u003ePrecision glass balls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003e626, 608, 6000, 6001, 6002, 6003, 6004, 6005, 6006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter (d)\u003c\/th\u003e\n\u003ctd\u003e6 mm – 30 mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (D)\u003c\/th\u003e\n\u003ctd\u003e19 mm – 55 mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth (B)\u003c\/th\u003e\n\u003ctd\u003e6 mm – 13 mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eISO 15 \/ 6-series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically –10°C to +80°C (14°F to 176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Radial Load\u003c\/th\u003e\n\u003ctd\u003eSee variant options — lower than equivalent steel bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eDry \/ unlubricated (grease compatible if required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantities\u003c\/th\u003e\n\u003ctd\u003e1, 2, 5, 10, 25 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConductivity\u003c\/th\u003e\n\u003ctd\u003eNon-conductive\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\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\u003eWhich size should I choose for a standard 608 skateboard or fidget spinner application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect the \u003cstrong\u003e608 (8×22×7 mm)\u003c\/strong\u003e variant. This is the most widely used bearing size in skateboards, inline skates, and fidget spinners. The bore is 8 mm, outer diameter 22 mm, and width 7 mm — identical dimensions to a standard steel 608 bearing, so it drops directly into the same housing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong are these plastic bearings compared to steel bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePP nylon bearings carry significantly lower radial and axial loads than equivalent steel bearings. They are suited for light-duty, low-speed applications (typically under 3,000 RPM and light radial loads). For heavy machinery, high-speed spindles, or impact-loaded assemblies, a steel bearing is the appropriate choice. Contact us to confirm load suitability for your specific application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion-resistant enough for outdoor or marine use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Polypropylene resists fresh water, salt water, and many mild chemicals without rusting or pitting. Glass balls are similarly inert. These bearings are a practical choice for outdoor equipment, coastal environments, and wash-down applications where steel bearings would corrode. Avoid prolonged exposure to strong solvents or concentrated acids.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings compatible with my existing steel bearing housing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes — each size follows the same outer diameter and width as the equivalent steel 6-series bearing (ISO 15). A 6004 PP bearing, for example, has the same 42 mm OD and 12 mm width as a steel 6004. Fit it into the same housing with the same press or snap-fit method. Note that PP nylon has a slightly higher thermal expansion coefficient than steel, so check clearances if the assembly will see significant temperature swings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these bearings in food processing or medical equipment?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePP nylon and glass are both non-toxic and free of metal contamination risk, making these bearings a common choice in light-duty food-adjacent and laboratory equipment. However, they are not certified food-grade (FDA\/EC 1935\/2004) out of the box. If regulatory compliance is required for direct food contact, please contact us to confirm suitability or request documentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to lubricate these bearings before installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are supplied dry (unlubricated). For most light-duty, low-speed applications they can be run dry. If your application involves continuous rotation at moderate speeds, applying a small amount of PTFE-based or silicone grease compatible with polypropylene will extend service life. Avoid petroleum-based greases, which can degrade PP over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 626 and 608 sizes, and which is more common?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e608\u003c\/strong\u003e (8×22×7 mm) has an 8 mm bore and is the most widely used size globally — found in skateboards, scooters, and countless small appliances. The \u003cstrong\u003e626\u003c\/strong\u003e (6×19×6 mm) has a smaller 6 mm bore and is common in RC cars, small motors, and precision instruments. Choose based on your shaft diameter: 6 mm shaft → 626; 8 mm shaft → 608.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size and pack quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"626 （6x19x6）mm \/ 1","offer_id":52410381959442,"sku":"LLGFSHXJZC2632x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"608 （8x22x7）mm \/ 1","offer_id":52410381992210,"sku":"LLGFSHXJZC2633x1","price":11.15,"currency_code":"USD","in_stock":true},{"title":"6000（10x26x8）mm \/ 1","offer_id":52410382024978,"sku":"LLGFSHXJZC2634x1","price":11.15,"currency_code":"USD","in_stock":true},{"title":"6001（12x28x8）mm \/ 1","offer_id":52410382057746,"sku":"LLGFSHXJZC2635x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"6002（15x32x9）mm \/ 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