{"product_id":"norton-66252939680-surface-grinding-wheel-7in-120-grit","title":"Norton 66252939680 Surface Grinding Wheel 7in 120 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66252939680 is a Type 1 surface grinding wheel designed for precision stock removal and surface finishing on a wide range of ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rate and controlled wear in dry or wet grinding applications. The wheel measures 7 inches in diameter, 1\/4 inches thick, with a 1-1\/4 inches arbor hole. At 120 grit with an I hardness code and fine grade classification, it suits finish grinding work where surface finish quality matters. Rated to 3600 RPM maximum operating speed. Wheel weight is approximately 0.79 pounds.\u003c\/p\u003e\u003cp\u003eThis grinding wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both job shop and production environments. It performs across a broad material range including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The 32A series designation reflects a standard aluminum oxide grain structure commonly specified for toolroom and surface grinding operations requiring a fine finish.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAluminum oxide abrasive grain for reliable cutting action on ferrous and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eVitrified bond construction for rigidity, porosity, and consistent wheel form retention\u003c\/li\u003e\n\u003cli\u003e120 grit fine grade for finish-quality surface grinding passes\u003c\/li\u003e\n\u003cli\u003eI hardness code indicates medium hardness for balanced wheel life and cut rate\u003c\/li\u003e\n\u003cli\u003ePorous structure supports coolant flow and chip clearance during grinding\u003c\/li\u003e\n\u003cli\u003eType 1 flat wheel profile with no recess, no taper, and a 1-1\/4 inches straight arbor hole\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a 7 inches diameter, 1-1\/4 inches arbor hole Type 1 grinding wheel. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheel installation and dressing should be performed by a qualified operator or grinding machine technician following the machine manufacturer's spindle speed rating and ANSI B11.9 safe operating procedures. Always verify that the machine spindle speed does not exceed the 3600 RPM maximum rated speed marked on the wheel before mounting. Inspect the wheel for cracks or chips using the ring test before installation, and never force a wheel onto a spindle that requires excessive effort. Power down and lock out the grinder before changing wheels.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\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: 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\u003eGrit\u003c\/strong\u003e: 120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Fine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: I\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Hardness Rating\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 3600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorous\u003c\/strong\u003e: Yes\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\u003eSeries\u003c\/strong\u003e: 32A Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecifications\u003c\/strong\u003e: 32A120-IVBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23131503\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.79 pounds\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: 66252939680\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542706749746,"sku":"66252939680","price":80.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1734ef41710c2853ff6e1793ea8dffed.jpg?v=1785904929","url":"https:\/\/voomisupply.com\/products\/norton-66252939680-surface-grinding-wheel-7in-120-grit","provider":"Voomi Supply","version":"1.0","type":"link"}