{"product_id":"norton-66253262515-surface-grinding-wheel-80-grit-12in","title":"Norton 66253262515 Surface Grinding Wheel 80 Grit 12in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 66253262515 is a Type 1 surface grinding wheel engineered for high-performance stock removal on ferrous metals and hard alloys. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent cut rates and long service life on demanding materials including stainless steel, tool steels, titanium, super alloys, and various grades of cast and ductile iron. It measures 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole. The wheel carries an 80 grit, J hardness (medium grade) rating and is rated to a maximum of 2070 RPM. The semi-friable ceramic grain continuously fractures to expose sharp cutting edges, maintaining grinding efficiency across extended cycles.\u003c\/p\u003e\n\u003cp\u003eThis wheel is suited for precision surface grinding applications in machine shops, tool rooms, and manufacturing environments. It is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The 5SG Type 1 series is particularly effective when grinding 400 series stainless steel, hard carbon steels, high-speed tool steels, titanium, super alloys, and cast iron families including gray, ductile, and malleable grades. The porous structure of the wheel assists with chip clearance and coolant flow during wet or dry grinding operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCeramic abrasive grain with semi-friable characteristics for self-sharpening performance\u003c\/li\u003e\n  \u003cli\u003eVitrified bond provides rigidity and consistent form-holding under load\u003c\/li\u003e\n  \u003cli\u003e80 grit, J hardness (medium grade) balances material removal rate with surface finish quality\u003c\/li\u003e\n  \u003cli\u003ePorous wheel structure improves chip clearance and coolant penetration\u003c\/li\u003e\n  \u003cli\u003eType 1 straight wheel profile with no recess for broad surface grinder compatibility\u003c\/li\u003e\n  \u003cli\u003eRated for stainless steel, tool steels, titanium, super alloys, and cast iron applications\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. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Confirm arbor hole size, flange compatibility, and maximum spindle RPM before mounting.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eGrinding wheel installation and dressing should be performed by a qualified machinist or grinding machine operator following ANSI B11.9 and OSHA 29 CFR 1910.215 safe guarding standards. Before mounting, inspect the wheel for cracks or chips using the ring test, and verify that the machine spindle speed does not exceed the 2070 RPM maximum rating marked on the wheel. Always use proper flanges and blotters, and allow the wheel to run at operating speed for at least one minute behind a guard before presenting work. Never exceed the rated maximum RPM under any operating condition.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArbor Hole Size\u003c\/strong\u003e: 5 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\u003eAbrasive Material\u003c\/strong\u003e: Ceramic\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 (No Recess)\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: Yes\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: 2070\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5SG Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: 5SG80-JVS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 7.98 pounds\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: 66253262515\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51540901855538,"sku":"66253262515","price":630.02,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5ef1e59d574fec4a8372fcf3b3a2d61c.jpg?v=1785865667","url":"https:\/\/voomisupply.com\/products\/norton-66253262515-surface-grinding-wheel-80-grit-12in","provider":"Voomi Supply","version":"1.0","type":"link"}