{"product_id":"norton-66253262719-surface-grinding-wheel-12in-60-grit","title":"Norton 66253262719 Surface Grinding Wheel 12in 60 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66253262719 is a Type 1 vitrified aluminum oxide surface grinding wheel engineered for precision stock removal on ferrous metals and superalloys. Measuring 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole, this wheel carries a 60-grit, K-hardness (medium) rating in the 38A series. The vitrified bond delivers consistent cutting action and free-cutting performance across a range of material hardnesses. Rated to a maximum of 2070 RPM, it is suited for surface grinders and cylindrical grinders operating at controlled spindle speeds. Wheel weight is 7.973 pounds. Installation and dressing should be performed by a qualified machine operator or tool and die technician.\u003c\/p\u003e\u003cp\u003eThis wheel is designed for use on soft carbon steels, tool steels, and superalloys in production and job-shop environments. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines equipped with a 5-inch arbor. The 38A aluminum oxide formulation is semi-friable, meaning the abrasive fractures under load to expose fresh cutting edges, which helps maintain cut rate and reduces heat buildup during extended grinding passes on heat-sensitive workpiece materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e38A semi-friable aluminum oxide abrasive for consistent, free-cutting action\u003c\/li\u003e\n\u003cli\u003eVitrified bond provides rigidity and dimensional stability during grinding\u003c\/li\u003e\n\u003cli\u003e60 grit, K hardness (medium grade) balances material removal rate with surface finish\u003c\/li\u003e\n\u003cli\u003eType 1 straight-wheel profile fits standard surface and cylindrical grinder spindles\u003c\/li\u003e\n\u003cli\u003eNon-porous, non-tapered, no-recess construction for uniform wheel balance\u003c\/li\u003e\n\u003cli\u003eRated to 2070 RPM maximum operating speed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with surface grinders, cylindrical grinders, and CNC cutting tool machines equipped with a 5-inch arbor. Suitable for grinding soft carbon steels, tool steels, and superalloys per the manufacturer specification 38A60-KVBE.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMounting and dressing of grinding wheels must be performed by a trained operator following ANSI B7.1 safety standards. Power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the 2070 RPM maximum speed rating. Flanges, blotters, and arbor hardware must be in serviceable condition and properly sized for a 5-inch hole before mounting.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eHole Size\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 2070\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Code\u003c\/strong\u003e: 38A60-KVBE\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\u003eWheel Color\u003c\/strong\u003e: White\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\u003eMaterial Application\u003c\/strong\u003e: Soft Carbon Steels, Tool Steels, Superalloys\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 7.973 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: 66253262719\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51540320813362,"sku":"66253262719","price":337.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64f20ff0a59f3a888b3121788ff1ace5.jpg?v=1785852159","url":"https:\/\/voomisupply.com\/products\/norton-66253262719-surface-grinding-wheel-12in-60-grit","provider":"Voomi Supply","version":"1.0","type":"link"}