{"product_id":"norton-66253262501-surface-grinding-wheel-12in-46-grit","title":"Norton 66253262501 Surface Grinding Wheel 12in 46 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66253262501 is a Type 1 surface grinding wheel engineered for heavy stock removal on ferrous metals and difficult-to-grind alloys. Built on a ceramic abrasive grain with a vitrified bond, it delivers consistent cut rate and form retention across extended production runs. The wheel measures 12 inches in diameter, 1 inch thick, with a 3-inch arbor hole. It carries a J hardness code, placing it in the medium hardness range, and a 46-grit coarse grade suited for aggressive material removal rather than finishing. Maximum operating speed is 2070 RPM. The blue, porous, semi-friable structure promotes cool cutting and resists loading under heavy infeed conditions.\u003c\/p\u003e\u003cp\u003eThis wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in shop and production environments. Listed material applications include 400 Series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. It is appropriate for both job-shop and high-volume machining operations where consistent wheel life and dimensional control are required. The 5SG Type 1 series designation identifies it as part of a vitrified ceramic line built for precision grinding of tough materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCeramic abrasive grain with vitrified bond for high cut rate and extended wheel life\u003c\/li\u003e\n\u003cli\u003e46 grit coarse grade for aggressive stock removal on hard and abrasion-resistant alloys\u003c\/li\u003e\n\u003cli\u003eJ hardness code (medium) balances wheel breakdown rate with workpiece support\u003c\/li\u003e\n\u003cli\u003ePorous, semi-friable structure promotes cool cutting and reduces loading\u003c\/li\u003e\n\u003cli\u003eType 1 flat wheel profile with no recess, compatible with standard surface and cylindrical grinder flanges\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. Suitable for grinding 400 Series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Series designation is 5SG Type 1 with specification code 5SG46-JVS.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheel mounting must be performed by qualified personnel following ANSI B7.1 safety standards for abrasive wheel use, handling, and guarding. Always perform a ring test before mounting and confirm the machine spindle speed does not exceed the 2070 RPM maximum marked on the wheel. Guard clearances and flange conditions must be inspected prior to installation. Never exceed the rated operating speed and ensure the arbor bore fits the spindle without forcing.\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\u003eArbor Hole Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 46\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\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: 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\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\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\u003eSpecification Code\u003c\/strong\u003e: 5SG46-JVS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5SG Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23131503\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: 66253262501\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542300754226,"sku":"66253262501","price":612.77,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0dbcdeb74dffeb8ecf890a47f1825086.jpg?v=1785897384","url":"https:\/\/voomisupply.com\/products\/norton-66253262501-surface-grinding-wheel-12in-46-grit","provider":"Voomi Supply","version":"1.0","type":"link"}