Norton 66253044215 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253044215 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel measures 8 inches in diameter, 3/4 inches thick, with a 1-1/4 inch arbor hole. It carries a 46-grit coarse grade with an I hardness code (medium hardness rating), making it well suited for aggressive material removal while maintaining form. Rated to a maximum of 3,105 RPM, it is a standard straight wheel used on surface grinders and cylindrical grinders in production and tool room environments. The vitrified bond provides rigidity and free-cutting action across a wide range of materials.

This grinding wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It performs on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The coarse 46-grit specification makes it appropriate for roughing passes and rapid material removal rather than finish grinding. It fits standard machine spindles requiring a 1-1/4 inch hole and is a common choice in maintenance shops, tool rooms, and production grinding cells.

Key Features

• Aluminum oxide abrasive for reliable performance on ferrous and non-ferrous metals
• Vitrified bond construction provides rigidity and consistent cutting action
• 46-grit coarse grade for aggressive stock removal
• I hardness code (medium) balances wheel wear and cut rate
• Porous structure promotes coolant flow and chip clearance
• No recess, no taper — standard Type 1 straight wheel geometry
• Series designation 32A46-IVBE for direct cross-reference

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Compatible material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel mounting and dressing must be performed by a qualified operator or machinist following ANSI B11.9 and OSHA 1910.215 safety standards. Before mounting, inspect the wheel for cracks or chips using the ring test — do not mount a damaged wheel. Power down and lock out the machine before changing wheels, and confirm the machine spindle speed does not exceed the 3,105 RPM maximum rating stamped on the wheel. Always dress the wheel after mounting to ensure concentricity before making contact with the workpiece.