Norton 66253044196 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253044196 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Built around an aluminum oxide abrasive grain bonded in a vitrified matrix, this wheel measures 8 inches in diameter, 3/4 inches thick, and carries a 1-1/4 inch arbor hole. The 46 grit, coarse grade provides aggressive cutting action suited for rapid material removal, while the H hardness code and porous structure help maintain cool cutting temperatures and consistent wheel breakdown. Rated to 3600 RPM, it is installed by machinists and tool-room technicians on surface grinders and cylindrical grinders in production and job-shop environments.

This wheel is designed for use on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The 32A series specification (32A46-HVBEP) makes it appropriate for applications where controlled wheel wear and clean surface finish are required alongside efficient material removal rates. It fits standard surface grinder spindles accepting a 1-1/4 inch bore.

Key Features

• Aluminum oxide abrasive grain with vitrified bond for durable, consistent cutting
• 46 grit coarse grade for high material removal rates
• H hardness code with porous structure for cooler cutting and reduced workpiece heat
• Type 1 flat wheel profile with no recess for straightforward mounting
• 3600 RPM maximum operating speed
• Series specification 32A46-HVBEP for material traceability and replacement matching

Compatibility

Rated for use on 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Fits surface grinders, cylindrical grinders, and CNC cutting tool machines accepting an 8 inch diameter, 1-1/4 inch bore Type 1 wheel.

Installation Notes

Grinding wheel installation and dressing must be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 guarding requirements. Before mounting, inspect the wheel for cracks or chips using the ring test — do not mount a damaged wheel. Power down and lockout the machine before changing wheels, confirm the spindle speed does not exceed the 3600 RPM rating, and always use the correct flanges and blotter paper as required. Run the wheel at operating speed under the guard for at least one minute before bringing it into contact with the workpiece.