Norton 66253262078 Surface Grinding Wheel 60 Grit 12in

Product Description

The NORTON 66253262078 is a Type 1 surface grinding wheel engineered for precision material removal on ferrous metals. Built from aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent cutting action and dimensional stability under high-cycle conditions. It measures 12 inches in diameter, 1 inch thick, with a 3-inch arbor hole, and carries a 60-grit, medium-grade (Hardness Code I) specification. The vitrified bond structure is porous, allowing coolant penetration and heat dissipation during extended grinding operations. Rated to a maximum of 2,070 RPM, it is suited for surface and cylindrical grinding applications in professional machine shop environments.

This wheel is intended for use on hard carbon steels, soft carbon steels, and tool steels. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The 32A series vitrified aluminum oxide construction makes it a standard choice for toolroom and production grinding where flat, accurate surface finishes are required. The blue wheel color is characteristic of the NORTON 32A series designation.

Key Features

• Aluminum oxide abrasive for effective stock removal on carbon and tool steels
• Vitrified bond with porous structure for coolant flow and thermal control
• 60-grit medium grade (Hardness Code I) balances cut rate and surface finish
• Type 1 flat wheel geometry with no recess and no taper for straightforward mounting
• Rated at 2,070 RPM maximum operating speed
• Series designation 32AA60-IVTR for direct cross-reference ordering

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include hard carbon steels, soft carbon steels, and tool steels. Compatible machines must accommodate a 12-inch diameter wheel with a 3-inch arbor hole and operate within the 2,070 RPM maximum speed rating.

Installation Notes

Grinding wheel installation should be performed by a qualified machinist or toolroom professional. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test per ANSI B11.9 guidelines. Never exceed the maximum operating RPM marked on the wheel, and ensure the machine spindle speed is confirmed before startup.