Norton 66253262582 Surface Grinding Wheel 60 Grit 12in

Product Description

The NORTON 66253262582 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Built on an aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent cut rates and predictable wear across extended grinding cycles. It measures 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole, and carries a 60-grit, medium-grade (Hardness Code I) specification rated to a maximum of 2070 RPM. The vitrified bond structure is porous, promoting coolant flow and chip clearance during heavy-duty surface grinding operations. Licensed machinists, tool-and-die makers, and industrial maintenance technicians are the primary installers and operators of this wheel.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in production and job-shop environments. Its aluminum oxide abrasive makes it effective across a broad range of material applications including 400 Series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is suitable for both roughing passes requiring aggressive material removal and finishing passes where surface finish consistency matters.

Key Features

• Aluminum oxide abrasive for broad material compatibility including stainless, carbon steels, and cast iron
• Vitrified bond with porous structure promotes coolant penetration and swarf clearance
• 60-grit medium grade (Hardness Code I) balances stock removal rate with surface finish quality
• Type 1 flat wheel geometry with no recess and no taper for straightforward mounting
• Maximum operating speed of 2070 RPM — verify machine spindle speed before mounting
• Series 32A specification (32A60-IVBE) for consistent abrasive performance across production runs

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 following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Always inspect the wheel for cracks or chips using a ring test before mounting, and never exceed the stated maximum RPM of 2070. Power down and lock out the grinder before changing wheels. Use properly sized flanges and a compressible blotter between the flange and wheel face as required by applicable safety standards.