{"product_id":"norton-66243529032-internal-grinding-wheel-60-grit","title":"Norton 66243529032 Internal Grinding Wheel 60 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66243529032 is a Type 1 internal grinding wheel designed for precision bore and internal diameter grinding operations. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal on ferrous metals and hardened steel in machine shop and production environments. The wheel measures 3 inches in diameter by 1\/2 inch thick with a 3\/8-inch arbor hole, and carries a maximum operating speed of 10,825 RPM. At 60 grit with a medium grade and J hardness rating, it balances cut rate with surface finish quality. Weighing 0.3 pounds, it is suited for internal grinding spindles and tool post grinder setups.\u003c\/p\u003e\u003cp\u003eThis wheel is used in internal grinding applications on cylindrical grinders, jig grinders, and tool post grinders. It is appropriate for grinding bores, bushings, races, and similar internal features in a machine shop or industrial maintenance environment. The semi-friable aluminum oxide abrasive self-sharpens under load, making it effective on hardened ferrous workpieces where consistent finish is required. Licensed machinists and toolroom technicians are the primary installers and operators of this wheel type.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e60 grit, medium grade aluminum oxide abrasive for balanced material removal and surface finish\u003c\/li\u003e\n\u003cli\u003eVitrified bond for rigidity and consistent wheel form retention during internal grinding\u003c\/li\u003e\n\u003cli\u003eSemi-friable abrasive construction promotes self-sharpening under grinding load\u003c\/li\u003e\n\u003cli\u003e10,825 maximum RPM rating for safe operation on internal grinding spindles\u003c\/li\u003e\n\u003cli\u003eNo-recess Type 1 straight wheel profile for straightforward mounting\u003c\/li\u003e\n\u003cli\u003eWhite wheel color for easy visual identification as an aluminum oxide medium-grade wheel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use internal grinding wheel for spindles and arbors accepting a 3\/8-inch hole with a 3-inch diameter Type 1 wheel form.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of grinding wheels must comply with ANSI B11.9 and applicable OSHA standards for abrasive wheel machinery. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting and perform a ring test prior to use. Never exceed the maximum RPM rating marked on the wheel, and always use the correct flanges and blotters for the arbor size.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: J (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\u003eWheel Type\u003c\/strong\u003e: Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecess Type\u003c\/strong\u003e: No Recess\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: 10,825\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArbor Hole\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23131503\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: 66243529032\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51538938757426,"sku":"66243529032","price":25.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/31db9c56c868f4424a83098a53147254.jpg?v=1785830268","url":"https:\/\/voomisupply.com\/products\/norton-66243529032-internal-grinding-wheel-60-grit","provider":"Voomi Supply","version":"1.0","type":"link"}