Norton 66253246808 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253246808 is a Type 1 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on a wide range of ferrous and non-ferrous materials. Measuring 14 inches in diameter, 2 inches thick, with a 5-inch arbor hole, this wheel carries a 46-grit coarse grade and an H hardness rating — a combination suited for aggressive material removal where surface finish is secondary to cut rate. The vitrified bond provides consistent structure and open porosity that helps manage heat buildup during extended grinding passes. Rated at a maximum of 1,775 RPM, it is built for use on industrial surface grinders and CNC cutting tool machines. At 11.43 pounds, the wheel has the mass expected of a production-grade abrasive in this diameter class.

This wheel is specified for use 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. It fits standard surface grinder and cylindrical grinder spindles with a 5-inch bore. The coarse 46-grit designation makes it the right choice for high-stock-removal operations such as surface preparation, scale removal, and rough dimensioning rather than finishing passes. The Series 32A wheel construction is a recognized Norton platform for general-purpose precision grinding on production equipment.

Key Features

• Type 1 flat wheel profile — no recess, no taper — for straight surface and cylindrical grinding
• 46-grit aluminum oxide abrasive delivers coarse, high-removal cutting action
• H hardness rating (soft side of the scale) allows the wheel to release dull grains and resist loading
• Vitrified bond maintains wheel shape and provides consistent cut throughout wheel life
• Rated to 1,775 RPM maximum — verify spindle speed before mounting
• Compatible material range includes stainless, carbon steels, tool steels, aluminum, and multiple cast iron grades

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel installation must be performed by a qualified operator following ANSI B7.1 safety standards. Power down and lock out the machine before mounting or removing any wheel. Perform a ring test before installation to check for cracks, and confirm the machine spindle speed does not exceed the 1,775 RPM maximum rating marked on the wheel. Use proper flanges and blotters as specified by the machine manufacturer, and dress the wheel before the first grinding pass to true the face and expose fresh abrasive.