{"product_id":"norton-66243530419-type-11-grinding-wheel-4in-80-grit","title":"Norton 66243530419 Type 11 Grinding Wheel 4in 80 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66243530419 is a Type 11 flaring cup grinding wheel built for tool and surface grinding applications. It uses a Ceramic Alumina abrasive bonded with a vitrified bond system, rated at J hardness for medium-grade stock removal. The wheel measures 4 inches in diameter with a 1.5-inch overall thickness and a 0.25-inch face width, spinning safely at up to 5,730 RPM. The semi-friable Ceramic Alumina grain self-sharpens as it cuts, maintaining consistent cut rate across the wheel life. Specification code 5SG80-JVS identifies the exact formulation. Licensed tradespeople in tool rooms, maintenance shops, and fabrication environments will find this wheel appropriate for precision grinding of hardened steel and similar tooling materials.\u003c\/p\u003e\u003cp\u003eThis wheel is suited for bench and pedestal grinder setups as well as handheld angle grinders configured for Type 11 cup wheels. The 4-inch diameter and 80-grit medium-grade abrasive make it a practical choice for resharpening cutting tools, removing surface scale, and blending weld areas on ferrous metals in both light industrial and trade maintenance settings. The 1.25-inch arbor hole fits standard spindle configurations common in tool-room grinding equipment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCeramic Alumina abrasive for self-sharpening, consistent cut rate on hardened materials\u003c\/li\u003e\n\u003cli\u003eVitrified bond provides rigidity and thermal stability under continuous grinding loads\u003c\/li\u003e\n\u003cli\u003eJ hardness (medium grade) balances wheel life with stock-removal efficiency\u003c\/li\u003e\n\u003cli\u003eSemi-friable grain fractures to expose fresh cutting edges, reducing glazing\u003c\/li\u003e\n\u003cli\u003eType 11 flaring cup profile for face and tool-edge grinding applications\u003c\/li\u003e\n\u003cli\u003eNon-porous structure maintains form integrity across the usable wheel life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard aftermarket fit for angle grinders and bench grinders accepting Type 11 cup wheels with a 1.25-inch arbor bore.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified technician familiar with abrasive wheel safety requirements per ANSI B7.1 standards. Always power down and de-energize the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before each use and perform a ring test on vitrified wheels as required by applicable safety codes. Never exceed the 5,730 RPM maximum speed rating marked on the wheel.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Ceramic Alumina\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Code\u003c\/strong\u003e: 5SG80-JVS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Thickness\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace Width\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Diameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriability\u003c\/strong\u003e: Semi-Friable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorosity\u003c\/strong\u003e: Non-Porous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 5,730\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NORTON\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66243530419\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51539292717362,"sku":"66243530419","price":142.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b72e94fcf497207fc9264b49f3c83f36.jpg?v=1785837918","url":"https:\/\/voomisupply.com\/products\/norton-66243530419-type-11-grinding-wheel-4in-80-grit","provider":"Voomi Supply","version":"1.0","type":"link"}