Norton 66252941203 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252941203 is a Type 1 surface grinding wheel engineered for precision stock removal on a range of ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cutting action and shape retention throughout the grind. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and is rated to a maximum of 3600 RPM. The 46-grit, F-hardness (coarse grade) construction is suited for aggressive material removal where surface finish is secondary to throughput. Licensed machinists, tool-and-die technicians, and surface grinder operators are the typical installers.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It performs across a broad material range including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous, vitrified bond structure supports efficient swarf clearance and cooler grinding, making it a practical choice for both production and maintenance grinding applications in machine shops and industrial facilities.

Key Features

• Aluminum oxide abrasive for reliable performance on ferrous and non-ferrous metals
• Vitrified bond with porous structure promotes swarf clearance and reduced heat buildup
• 46 grit, F hardness (coarse grade) for aggressive stock removal
• Type 1 flat wheel profile with no recess — straightforward mounting and dressing
• Rated to 3600 RPM maximum operating speed
• Series 32A specification (32A46-FVBEP) for consistent manufacturing tolerance

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

Installation and wheel changes must be performed by a qualified machinist or grinding operator with the machine fully powered down and locked out per OSHA lockout/tagout requirements. Always inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI B11.9 or applicable grinding safety standards. Never exceed the 3600 RPM maximum speed rating marked on the wheel. Use appropriate flanges and blotters when mounting, and allow the wheel to run at operating speed in a guarded position for at least one minute before engaging the workpiece.