{"product_id":"norton-66252939219-surface-grinding-wheel-80-grit-7-in","title":"Norton 66252939219 Surface Grinding Wheel 80 Grit 7 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 66252939219 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. The wheel measures 7 inches in diameter and 1\/8 inches thick with a 1-1\/4 inches arbor hole. It is constructed from aluminum oxide abrasive bonded in a vitrified matrix, producing a white, non-porous wheel rated at medium grade with an I hardness code. Maximum operating speed is 3,275 RPM. The 38A series designation identifies it as a semi-friable aluminum oxide formulation suited to controlled, consistent cutting action on ferrous and high-alloy workpieces. Licensed machinists, tool grinders, and surface grinding specialists are the primary installers and operators.\u003c\/p\u003e\n\u003cp\u003eThis wheel is intended for surface grinding, cylindrical grinding, and CNC cutting tool machine applications. Its 80 grit rating positions it in the medium-coarse range, making it effective for moderate material removal while maintaining reasonable surface finish on soft carbon steels, tool steels, and super alloys. The 7-inch diameter and 1\/8-inch thickness make it a common format for surface grinder spindles in both job-shop and production-floor environments. The vitrified bond provides rigidity and allows the wheel to break down predictably, exposing fresh abrasive during the cut.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum oxide abrasive in vitrified bond for consistent cut and controlled breakdown\u003c\/li\u003e\n  \u003cli\u003e80 grit, medium grade, I hardness code suited to moderate stock removal on ferrous alloys\u003c\/li\u003e\n  \u003cli\u003eSemi-friable 38A grain formulation extends wheel life on soft carbon and tool steel applications\u003c\/li\u003e\n  \u003cli\u003eNon-porous, non-tapered Type 1 flat wheel geometry with no recess\u003c\/li\u003e\n  \u003cli\u003eWhite wheel color aids visual wear monitoring during dressing cycles\u003c\/li\u003e\n  \u003cli\u003eRated to 3,275 RPM maximum operating speed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include soft carbon steels, tool steels, and super alloys. Fits spindles accepting a 1-1\/4 inches arbor hole with a 7-inch wheel diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eGrinding wheel mounting and operation should be performed by qualified machinists or tool room technicians familiar with ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Never exceed the 3,275 RPM maximum operating speed marked on the wheel or its blotter. Ensure the machine spindle is fully stopped before changing or dressing the wheel, and use proper flanges and blotters as specified for Type 1 wheel mounting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArbor Hole Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: I\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 38A Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecifications\u003c\/strong\u003e: 38A80-IVBE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 3,275\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFriability\u003c\/strong\u003e: Semi-Friable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePorous\u003c\/strong\u003e: Non-Porous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapered\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecess Type\u003c\/strong\u003e: No Recess\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.397 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23131503\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 66252939219\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51540841431346,"sku":"66252939219","price":106.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8487fc6d987fdd7a23f6692b6a6ebc80.jpg?v=1785864728","url":"https:\/\/voomisupply.com\/products\/norton-66252939219-surface-grinding-wheel-80-grit-7-in","provider":"Voomi Supply","version":"1.0","type":"link"}