{"product_id":"norton-66253207707-surface-grinding-wheel-46-grit","title":"Norton 66253207707 Surface Grinding Wheel 46 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 66253207707 is a Type 1 surface grinding wheel built for precision stock removal on ferrous metals. Constructed with aluminum oxide abrasive and a vitrified bond, this wheel measures 12 inches in diameter, 1.5 inches thick, with a 5-inch arbor hole. It carries a coarse 46-grit rating with an H hardness code, placing it on the softer end of the hardness scale for efficient, free-cutting action. The vitrified bond structure is porous, allowing coolant penetration and heat dissipation during heavy material removal operations. Licensed machinists and tool grinders are the primary installers and operators.\u003c\/p\u003e\n\u003cp\u003eThis wheel is rated for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is suited for grinding hard carbon steels, soft carbon steels, and tool steels. The 32A Series designation reflects a specific aluminum oxide grain structure optimized for these ferrous applications. The wheel is non-tapered and has no recess, making it a straightforward flat-face Type 1 form. Maximum operating speed is 2,070 RPM and must not be exceeded under any circumstances. Typical applications include surface grinding of flat workpieces and finish passes on tool steel components in production or job-shop environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum oxide abrasive with vitrified bond for consistent, controlled cut on ferrous materials\u003c\/li\u003e\n  \u003cli\u003eCoarse 46-grit, H hardness (soft hardness rating) for free-cutting, aggressive stock removal\u003c\/li\u003e\n  \u003cli\u003ePorous wheel structure promotes coolant flow and reduces heat buildup at the grind zone\u003c\/li\u003e\n  \u003cli\u003eType 1 flat wheel profile with no taper and no recess for straightforward surface grinding setups\u003c\/li\u003e\n  \u003cli\u003e32A Series grain specification — designed for hard carbon steels, soft carbon steels, and tool steels\u003c\/li\u003e\n  \u003cli\u003eMaximum operating speed of 2,070 RPM clearly rated for safe machine matching\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. Recommended material applications include hard carbon steels, soft carbon steels, and tool steels as specified by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or grinding machine operator. Before mounting, inspect the wheel for cracks or chips using the ring test per ANSI B7.1 safety standards, and ensure the machine spindle speed does not exceed the 2,070 RPM maximum rated speed of the wheel. Use the correct blotter and flanges sized for a 5-inch arbor hole, and never overtighten the mounting nut beyond what is needed to secure the wheel without distortion. Always dress the wheel before initial use and after any storage period to true the face and expose fresh abrasive grain.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 1.5 inches\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: 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: H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Hardness Rating\u003c\/strong\u003e: Soft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 2,070\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\u003eSeries\u003c\/strong\u003e: 32A Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: 32AA46-HVTRP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 11.96 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: 66253207707\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51541307294002,"sku":"66253207707","price":587.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e16b2b59561fa88a6afd73f631a372c7.jpg?v=1785871960","url":"https:\/\/voomisupply.com\/products\/norton-66253207707-surface-grinding-wheel-46-grit","provider":"Voomi Supply","version":"1.0","type":"link"}