{"product_id":"solid-carbide-ball-bearings-steel-ball-beads-dia-11-12-13-14-15-16-18-19-20mm","title":"Solid Carbide Ball Bearings Steel Ball Beads Dia 11\/12\/13\/14\/15\/16\/18\/19\/20mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003ch2 class=\"hdiy-overview\"\u003eSolid Carbide Ball Bearings — Precision-Ground Steel Ball Beads for Demanding Mechanical Applications\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eWhen a worn or undersized ball causes valve leakage, spindle chatter, or inconsistent load distribution, the fix starts with selecting the right diameter to within fractions of a millimeter. Machinists, toolmakers, maintenance engineers, and precision assembly technicians rely on dimensionally accurate rolling elements to restore or build mechanisms that perform to spec — not just close enough.\u003c\/p\u003e\n\u003cp\u003eThese solid carbide ball bearings are manufactured from tungsten carbide, delivering a Vickers hardness typically in the HV 1400–1600 range and a density of approximately 14.9 g\/cm³. The diameter range spans 11 mm (0.433\") to 20 mm (0.787\"), with 28 discrete sizes available — including fractional-inch equivalents such as 11.1125 mm (7\/16\"), 12.7 mm (1\/2\"), 15.875 mm (5\/8\"), 19.05 mm (3\/4\"), and 17.4625 mm (11\/16\"). Each ball is ground to a spherical tolerance consistent with Grade G25–G100 depending on the selected size.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include check-valve seating in hydraulic and pneumatic circuits, precision jig and fixture locating elements, ball-end mill grinding references, and wear-resistant contact points in metering and dosing equipment. The carbide composition also makes these solid carbide ball bearings suitable as grinding media in laboratory mills where steel contamination must be avoided.\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 note:\u003c\/strong\u003e Verify bore or seat diameter before ordering. Carbide balls are not compressible — dimensional fit must be confirmed against your application drawing or measured seat. Select your diameter from the variant options above.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Solid Carbide Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eTungsten Carbide Construction\u003c\/strong\u003e\n\u003cp\u003eSolid WC-Co composition provides hardness in the HV 1400–1600 range — significantly harder than tool steel — resisting deformation under high point loads and abrasive contact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e \u003cstrong\u003e28 Discrete Diameters: 11–20 mm\u003c\/strong\u003e\n\u003cp\u003eCovers both metric and fractional-inch standards (7\/16\", 1\/2\", 5\/8\", 3\/4\") in a single product listing, reducing sourcing complexity for mixed-standard assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003ePrecision-Ground Spherical Surface\u003c\/strong\u003e\n\u003cp\u003eGround to spherical tolerances consistent with Grade G25–G100, ensuring repeatable seating, uniform load distribution, and minimal runout in rotating or reciprocating applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eCorrosion and Wear Resistance\u003c\/strong\u003e\n\u003cp\u003eCarbide's inherent chemical stability resists oxidation and mild acid exposure, making these balls suitable for hydraulic fluids, light chemical media, and high-humidity environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Pack Quantities: 1, 2, or 5 PCS\u003c\/strong\u003e\n\u003cp\u003eOrder a single replacement ball for a repair job, a pair for matched-seat applications, or a 5-piece set for production runs and stocking — all from the same variant selector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚗️\u003c\/span\u003e \u003cstrong\u003eLow Magnetic Permeability\u003c\/strong\u003e\n\u003cp\u003eCarbide's non-ferromagnetic character makes these balls suitable for applications where steel balls would interfere with magnetic sensors, encoders, or MRI-adjacent equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📐 Technical Specifications — Solid Carbide Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Carbide (WC-Co)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e11 mm – 20 mm (0.433\" – 0.787\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Diameters\u003c\/th\u003e\n\u003ctd\u003e11, 11.1125, 11.5, 11.509, 12, 12.303, 12.5, 12.7, 13, 13.5, 14, 14.288, 14.5, 15, 15.081, 15.5, 15.875, 16, 16.5, 17, 17.4625, 17.5, 18, 18.5, 19, 19.05, 19.5, 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness (typical)\u003c\/th\u003e\n\u003ctd\u003eHV 1400–1600 (HRA 88–92)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDensity (typical)\u003c\/th\u003e\n\u003ctd\u003e~14.9 g\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSphericity Grade (typical)\u003c\/th\u003e\n\u003ctd\u003eG25–G100 (varies by diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003ePrecision ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnetic Properties\u003c\/th\u003e\n\u003ctd\u003eNon-ferromagnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantities\u003c\/th\u003e\n\u003ctd\u003e1 PCS \/ 2 PCS \/ 5 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBinder\u003c\/th\u003e\n\u003ctd\u003eCobalt (Co)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertifications \/ Standards\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\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 diameter for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the seat, bore, or mating surface with a calibrated micrometer or bore gauge before ordering. Carbide balls are rigid and non-compressible, so the fit must match your drawing tolerance exactly. If you are replacing an existing ball, measure the worn ball's diameter and select the next standard size up if the seat has also worn. For valve applications, consult the OEM seat specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between solid carbide balls and chrome steel balls?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSolid carbide (WC-Co) balls are approximately 3–4× harder than chrome steel (52100) balls, with hardness in the HV 1400–1600 range versus HV 400–700 for steel. Carbide balls resist abrasive wear, deformation under high point loads, and mild chemical attack far better than steel. The trade-off is that carbide is more brittle under impact loading — it is not recommended for applications with severe shock loads where steel's toughness is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these balls be used in corrosive or wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes, within limits. Tungsten carbide with a cobalt binder resists oxidation and mild acids well, making it suitable for hydraulic fluids, water, and light chemical media. However, strong acids (particularly hydrochloric and sulfuric acid) can attack the cobalt binder over time. For highly aggressive chemical environments, contact us to confirm suitability before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre fractional-inch sizes available, and how do they correspond to metric?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Several variants are listed in their exact fractional-inch decimal equivalents: 11.1125 mm = 7\/16\", 12.7 mm = 1\/2\", 15.875 mm = 5\/8\", 17.4625 mm = 11\/16\", and 19.05 mm = 3\/4\". These are the same physical sizes as their inch counterparts — select the diameter that matches your measured seat or drawing callout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pack quantity should I order?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect 1 PCS for a single replacement or prototype evaluation. Choose 2 PCS for matched-pair applications such as dual-seat valves or bilateral locating fixtures. The 5 PCS pack offers a lower per-unit cost and is suited for production runs, maintenance kits, or stocking a range of sizes. All pack quantities ship as individual balls of the same selected diameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan carbide balls be used as grinding media in laboratory mills?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Solid carbide balls are commonly used as grinding media in planetary ball mills and attritors where steel contamination of the sample must be avoided. Their high density (~14.9 g\/cm³) provides effective milling energy, and their hardness minimizes media wear and sample contamination. Confirm that your mill jar material is compatible with carbide before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the surface finish and sphericity tolerance of these balls?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese balls are precision ground to spherical tolerances consistent with Grade G25–G100 depending on the diameter selected. The surface is finished to a smooth ground condition suitable for seating, rolling contact, and reference applications. For applications requiring a specific certified grade (e.g., G10 or G16), contact us to confirm availability before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Diameter and Packing QTY above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"11mm \/ 1 PCS","offer_id":52410264224018,"sku":"Adaah2024GANGZHU2018x1","price":21.75,"currency_code":"USD","in_stock":true},{"title":"11.1125mm \/ 1 PCS","offer_id":52410264256786,"sku":"Adaah2024GANGZHU2019x1","price":24.41,"currency_code":"USD","in_stock":true},{"title":"11.5mm \/ 1 PCS","offer_id":52410264289554,"sku":"Adaah2024GANGZHU2020x1","price":24.41,"currency_code":"USD","in_stock":true},{"title":"11.509mm \/ 1 PCS","offer_id":52410264322322,"sku":"Adaah2024GANGZHU2021x1","price":24.41,"currency_code":"USD","in_stock":true},{"title":"12mm \/ 1 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