Norton 66253263145 Surface Grinding Wheel 46 Grit

Product Description

The NORTON 66253263145 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Constructed with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rate and long service life across demanding production environments. It measures 12 inches in diameter, 1-1/2 inches thick, and accepts a 5-inch arbor hole. The 46-grit coarse grade and I hardness code make it well suited to aggressive material removal where surface finish is a secondary concern. Rated to a maximum of 2070 RPM, this wheel is intended for use on dedicated surface grinders, cylindrical grinders, and CNC cutting tool machines. At 11.96 pounds, it is a substantial wheel appropriate for production-level grinding operations.

This wheel is rated for use on a broad range of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous structure of the vitrified bond promotes coolant flow and chip clearance during wet or dry grinding cycles, reducing heat buildup at the workpiece. It is a practical choice for tool rooms, machine shops, and maintenance grinding cells that require a reliable coarse-grade wheel for heavy stock removal or reconditioning work. The Type 1 straight-wheel profile and no-recess design simplify mounting and flanging on standard spindle assemblies.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cut rate and wheel integrity
• 46-grit coarse grade suited to aggressive stock removal on steels, cast iron, and aluminum
• Porous structure promotes coolant penetration and chip evacuation during grinding
• Type 1 straight-wheel profile with no recess for straightforward flange mounting
• Rated to 2070 RPM maximum operating speed
• Series designation 32A46-IVBE indicates specific abrasive blend, grit, hardness, and bond combination

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Confirmed material compatibility includes 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 should be performed by a qualified machinist or grinding specialist following ANSI B11.9 safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test to verify integrity. Power down and lock out the grinder before changing wheels, and ensure the spindle speed does not exceed the 2070 RPM maximum stamped on the wheel. Use matched flanges and a compressible blotter on each side of the wheel when securing to the spindle.