{"product_id":"tru-maxx-66253269552-surface-grinding-wheel-46-grit-7-in","title":"Tru-maxx 66253269552 Surface Grinding Wheel 46 Grit 7 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TRU-MAXX 66253269552 is a Type 1 surface grinding wheel designed for precision flat and surface grinding applications on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and predictable wear characteristics valued by machinists and grinding technicians. At 46 grit with a J hardness code and medium hardness rating, it falls in the coarse range, making it well suited for stock removal passes. The grain structure is rated 6, and the wheel is semi-friable, meaning it self-sharpens during use to maintain an aggressive cutting action. Maximum operating speed is 3,600 RPM. The wheel weighs 2 pounds.\u003c\/p\u003e\u003cp\u003eThis wheel is used in surface grinding operations on manual and CNC surface grinders found in machine shops, tool rooms, and maintenance departments. The 7-inch diameter, 0.5-inch thickness, and 1.25-inch arbor hole fit standard horizontal-spindle surface grinder configurations. Coarse, 46-grit aluminum oxide wheels at this size are commonly selected for roughing passes where faster material removal is prioritized over fine finish. The white aluminum oxide construction and vitrified bond make it appropriate for hardened steels and tool steels where heat generation must be managed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 1 straight wheel profile with no recess — fits standard horizontal-spindle surface grinders\u003c\/li\u003e\n\u003cli\u003e46 grit aluminum oxide abrasive for coarse, high-removal-rate grinding\u003c\/li\u003e\n\u003cli\u003eJ hardness code with medium hardness rating and grain structure 6\u003c\/li\u003e\n\u003cli\u003eSemi-friable abrasive self-sharpens during use to sustain cutting performance\u003c\/li\u003e\n\u003cli\u003eVitrified bond provides rigidity and consistent wheel geometry throughout the wheel life\u003c\/li\u003e\n\u003cli\u003eNon-porous construction; white wheel color for easy inspection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard consumable for horizontal-spindle surface grinders accepting a 7-inch diameter, 0.5-inch thick, Type 1 wheel with a 1.25-inch arbor hole running at or below 3,600 RPM.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSurface grinding wheels must be installed and dressed by a qualified machinist or grinding technician following ANSI B11.23 safe-use guidelines for grinding machines. Always perform a ring test before mounting and confirm the machine spindle speed does not exceed the 3,600 RPM maximum rated speed of this wheel. Power down and lock out the grinder before changing wheels, and use the correct flanges and blotters per machine manufacturer specifications. Never exceed the rated RPM; overspeed is a critical safety hazard with vitrified bond wheels.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 1 (Straight, No Recess)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\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: 46 (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\u003eGrain Structure\u003c\/strong\u003e: 6\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\u003ePorosity\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\u003eMaximum RPM\u003c\/strong\u003e: 3,600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Code\u003c\/strong\u003e: 28A46J6V31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TRU-MAXX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66253269552\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRU-MAXX","offers":[{"title":"Default Title","offer_id":51729922621746,"sku":"66253269552","price":30.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de11e6bca2bfa8ca50222966395a6152.jpg?v=1788709863","url":"https:\/\/voomisupply.com\/products\/tru-maxx-66253269552-surface-grinding-wheel-46-grit-7-in","provider":"Voomi Supply","version":"1.0","type":"link"}