{"product_id":"norton-66253246858-surface-grinding-wheel-12in-46-grit","title":"Norton 66253246858 Surface Grinding Wheel 12in 46 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 66253246858 is a Type 5 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. Measuring 12 inches in diameter and 1.5 inches thick with a 5-inch arbor hole, this wheel carries a 46-grit coarse grade and J hardness code, placing it in the medium hardness range. The vitrified bond provides rigidity and free-cutting action at speeds up to 2705 RPM. It is installed and operated by machinists and grinding technicians on surface grinders and cylindrical grinders in production and tool-room environments.\u003c\/p\u003e\n\u003cp\u003eThis wheel is suited for aggressive material removal on a broad range of workpiece materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The one-side recessed profile (Type 5 geometry) with a 7.5-inch recess diameter and 0.5-inch recess depth allows clearance for flanges and mounting hardware on compatible spindle configurations. It is a practical choice for high-volume surface grinding operations where coarse stock removal is required before finishing passes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum oxide abrasive with vitrified bond for rigid, free-cutting performance\u003c\/li\u003e\n  \u003cli\u003e46-grit coarse grade suited for aggressive stock removal\u003c\/li\u003e\n  \u003cli\u003eJ hardness (medium) balances wheel wear against cutting efficiency\u003c\/li\u003e\n  \u003cli\u003eType 5 one-side recessed geometry with 7.5-inch recess diameter and 0.5-inch recess depth\u003c\/li\u003e\n  \u003cli\u003eRated to 2705 RPM maximum operating speed\u003c\/li\u003e\n  \u003cli\u003eNon-porous structure for consistent grinding action across compatible metals\u003c\/li\u003e\n  \u003cli\u003eSeries 32A formulation optimized for steels, cast iron, and aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with surface grinders and cylindrical grinders accepting a 5-inch arbor hole and Type 5 wheel geometry. Compatible material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eGrinding wheel installation should be performed by a qualified machinist or grinding technician following ANSI B11.9 and OSHA 29 CFR 1910.215 requirements for abrasive wheel machinery. Always inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the rated 2705 RPM maximum speed. Ensure the machine spindle, flanges, and blotter paper are clean and properly seated before tightening. Power down and lock out the machine before performing any wheel change.\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 5\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\u003eArbor Hole Size\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecess Diameter\u003c\/strong\u003e: 7.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecess Depth\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecess Type\u003c\/strong\u003e: One-Side\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\u003eWheel Hardness Rating\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 2705\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification Code\u003c\/strong\u003e: 46J8V32A\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: Blue \/ Gray\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 8.4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23131503\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 32A Type 5\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: 66253246858\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51544486969650,"sku":"66253246858","price":134.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f13bb787fd556816a403a2fc92c8155e.jpg?v=1785927786","url":"https:\/\/voomisupply.com\/products\/norton-66253246858-surface-grinding-wheel-12in-46-grit","provider":"Voomi Supply","version":"1.0","type":"link"}