{"product_id":"tru-maxx-66253292502-surface-grinding-wheel-12in-46-grit","title":"Tru-maxx 66253292502 Surface Grinding Wheel 12in 46 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TRU-MAXX 66253292502 is a Type 1 surface grinding wheel designed for precision flat grinding operations on ferrous metals and hardened steels. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal and a controlled finish across the full face of the wheel. At 12 inches in diameter and 1-1\/2 inches thick, with a 5-inch arbor hole, it fits standard surface grinder spindle configurations. The 46 grit coarse grade makes it suited for aggressive material removal. Rated at a maximum of 2705 RPM, the wheel operates safely within the speed range of most industrial surface grinders. At 13 pounds, mounting and balancing are straightforward for experienced machine operators.\u003c\/p\u003e\u003cp\u003eThis wheel is used in machine shops and industrial maintenance environments where flat surface grinding is required. Typical applications include squaring workpiece faces, removing scale or surface defects, and finishing tool steel or hardened components. The white aluminum oxide grain is semi-friable, meaning it fractures under load to expose fresh cutting edges, which helps maintain cut rate and reduces heat buildup during extended grinding passes. It is installed and used by machinists and tool-and-die professionals working on horizontal spindle surface grinders.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 1 flat wheel profile — no recess, full-face grinding contact\u003c\/li\u003e\n\u003cli\u003eAluminum oxide abrasive with vitrified bond for rigid, consistent wheel structure\u003c\/li\u003e\n\u003cli\u003e46 grit coarse grade for high stock removal rates\u003c\/li\u003e\n\u003cli\u003eSemi-friable grain self-sharpens under load to extend wheel life\u003c\/li\u003e\n\u003cli\u003eI hardness (soft rating) allows the wheel to release dull grains readily, reducing glazing\u003c\/li\u003e\n\u003cli\u003eMaximum 2705 RPM rating — verify spindle speed before mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on horizontal spindle surface grinders accepting a Type 1 flat wheel with a 12-inch diameter, 1-1\/2-inch face width, and 5-inch arbor hole.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a qualified machinist or grinding operator following ANSI B11.24 and wheel manufacturer safety guidelines. Always ring-test the wheel before mounting and confirm the machine spindle speed does not exceed the 2705 RPM maximum rating marked on the wheel blotter. Power down and lock out the grinder before mounting or removing the wheel. Never exceed the rated RPM, use improper flanges, or force a wheel onto an arbor that does not match the 5-inch hole size.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1-1\/2 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\u003eGrit\u003c\/strong\u003e: 46 (Coarse)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: I (Soft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrain Structure\u003c\/strong\u003e: 5\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\u003eSpecification Code\u003c\/strong\u003e: 28A46I5V31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 2705\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecess Type\u003c\/strong\u003e: No Recess\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 13 pounds\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: 66253292502\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRU-MAXX","offers":[{"title":"Default Title","offer_id":51753998549298,"sku":"66253292502","price":125.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e79989627de8da6eea87d330637e5ac2.jpg?v=1788942721","url":"https:\/\/voomisupply.com\/products\/tru-maxx-66253292502-surface-grinding-wheel-12in-46-grit","provider":"Voomi Supply","version":"1.0","type":"link"}