{"product_id":"norton-66252941056-surface-grinding-wheel-7in-80-grit","title":"Norton 66252941056 Surface Grinding Wheel 7in 80 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66252941056 is a Type 1 straight surface grinding wheel engineered for precision stock removal on ferrous metals. Built on an aluminum oxide abrasive with a vitrified bond, this wheel runs at a maximum of 3600 RPM and delivers consistent, controlled cutting action across a medium-grade, semi-friable structure. The hardness code L rating keeps the wheel from glazing on softer work materials while maintaining wheel integrity under sustained dry operation. Licensed machinists, tool-and-die shops, and industrial grinding techs reach for this wheel when flatness and surface finish matter. The 38A series designation indicates a white aluminum oxide formulation suited to heat-sensitive and precision grinding applications.\u003c\/p\u003e\u003cp\u003eThis wheel is sized at 7 inches in diameter, 1\/2 inch thick, with a 1-1\/4 inch arbor hole, making it a direct fit for standard surface grinder spindles in that bore class. Rated for dry operation only, it is well-suited to surface grinders, cylindrical grinders, and CNC cutting tool machines working soft carbon steels, tool steels, and super alloys. It carries no recess and is non-tapered, meaning it mounts flat and true to the spindle flange.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAluminum oxide abrasive with vitrified bond for consistent, free-cutting action\u003c\/li\u003e\n\u003cli\u003e38A white aluminum oxide series — reduces heat buildup on sensitive tool steels and super alloys\u003c\/li\u003e\n\u003cli\u003eMedium grade, semi-friable structure extends wheel life while resisting glazing\u003c\/li\u003e\n\u003cli\u003eHardness code L balances wear resistance with self-dressing behavior\u003c\/li\u003e\n\u003cli\u003eNon-porous, non-tapered, no-recess Type 1 profile for flat, repeatable mounting\u003c\/li\u003e\n\u003cli\u003eRated for dry operation up to 3600 RPM\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 requiring a 1-1\/4 inch arbor bore and a Type 1 straight wheel profile. Suitable for grinding soft carbon steels, tool steels, and super alloys.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheel mounting and dressing must be performed by a qualified machinist or grinding equipment operator following ANSI B11.9 and OSHA 29 CFR 1910.215 safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels. Never exceed the 3600 RPM maximum speed rating stamped on the wheel.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 1 (Straight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 38A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArbor Hole Size\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriability\u003c\/strong\u003e: Semi-Friable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 3600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: Dry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecess Type\u003c\/strong\u003e: No Recess\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorous\u003c\/strong\u003e: Non-Porous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Soft Carbon Steels, Tool Steels, Super Alloys\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: 66252941056\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542754656562,"sku":"66252941056","price":89.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7fbf515f0b2627fffbaf900c1ea552bd.jpg?v=1785906339","url":"https:\/\/voomisupply.com\/products\/norton-66252941056-surface-grinding-wheel-7in-80-grit","provider":"Voomi Supply","version":"1.0","type":"link"}