{"product_id":"norton-66252942222-type-5-surface-grinding-wheel-46-grit","title":"Norton 66252942222 Type 5 Surface Grinding Wheel 46 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66252942222 is a Type 5 recessed surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Built from aluminum oxide abrasive in a vitrified bond matrix, it delivers consistent cut rates and predictable wheel wear across extended grinding cycles. The wheel measures 7 inches in diameter and 0.75 inches thick with a 1.25-inch arbor hole, a one-side recess of 0.25 inches deep at 2.75 inches in diameter, and carries an I hardness code rating at 46 grit coarse grade. Rated to 3600 RPM, this wheel is suited to surface grinders and cylindrical grinders operated by machinist and tool-room professionals.\u003c\/p\u003e\u003cp\u003eThis grinding wheel is designed for use on soft carbon steels, tool steels, and super alloys in surface grinding and cylindrical grinding applications. The 38A series semi-friable aluminum oxide grain self-sharpens during cut, making it effective on harder tool steels that would load a less friable abrasive. It is appropriate for both production grinding and precision tool-room work where consistent surface finish and dimensional control are required. The white wheel color aids visual inspection of dress condition between passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 5 recessed profile with a 0.25-inch deep, 2.75-inch diameter one-side recess for clearance on center-mount applications\u003c\/li\u003e\n\u003cli\u003e38A series semi-friable aluminum oxide grain promotes self-sharpening action on hard and abrasion-resistant workpiece materials\u003c\/li\u003e\n\u003cli\u003eVitrified bond provides rigid support, predictable dressing behavior, and thermal resistance during wet or dry grinding\u003c\/li\u003e\n\u003cli\u003e46 grit coarse grade suited for aggressive stock removal on soft carbon steels, tool steels, and super alloys\u003c\/li\u003e\n\u003cli\u003eI hardness code medium-grade wheel balances grain retention with controlled breakdown to resist glazing\u003c\/li\u003e\n\u003cli\u003e3600 RPM maximum operating speed; porous structure supports coolant flow and chip clearance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use with surface grinders and cylindrical grinders. Material application includes soft carbon steels, tool steels, and super alloys as stated by the manufacturer. Arbor hole size is 1.25 inches; verify spindle compatibility before mounting.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheel installation must be performed by a qualified machinist or grinding equipment operator following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always ring-test the wheel for cracks before mounting and use the correct flanges and blotters rated for the wheel diameter. Never exceed the 3600 RPM maximum operating speed marked on the wheel. Guard the grinding machine per manufacturer specifications and allow a free-run period after mounting before bringing the wheel into contact with the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 5 (One-Side Recessed)\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 Type 5\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: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecess Depth\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecess Diameter\u003c\/strong\u003e: 2.75 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: I\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: Medium\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\u003ePorous\u003c\/strong\u003e: Yes\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\u003eSpecification Code\u003c\/strong\u003e: 38A46-IVBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Soft Carbon Steels, Tool Steels, Super Alloys\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.28 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: NORTON\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66252942222\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51541721514290,"sku":"66252942222","price":88.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/521db50c7c3f8220524103e503f14507.jpg?v=1785883049","url":"https:\/\/voomisupply.com\/products\/norton-66252942222-type-5-surface-grinding-wheel-46-grit","provider":"Voomi Supply","version":"1.0","type":"link"}