Norton 66253364043 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253364043 is a Type 1 surface grinding wheel designed for precision stock removal on metalworking applications. It measures 14 inches in diameter, 1 inch thick, with a 5-inch arbor hole. The wheel is constructed from aluminum oxide abrasive bonded with a vitrified bond system, producing a coarse, semi-friable cutting action suited to softer ferrous metals and high-performance alloys. Rated at a maximum of 1800 RPM, it carries an H hardness code, placing it in the soft-to-medium range of the hardness scale. Specification designation is 38A46-HVBE. Total unit weight is 11.46 pounds.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in industrial and commercial shop environments. The aluminum oxide grain and coarse 46-grit structure make it well suited for soft carbon steels, tool steels, and super alloys where aggressive material removal is required without loading the wheel face. It is a non-tapered, non-recessed, non-porous Type 1 flat wheel compatible with machines that accept a 5-inch bore arbor at or below 1800 RPM.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, open cutting action
• 46 grit coarse grade for aggressive stock removal on ferrous metals and super alloys
• H hardness code — soft-to-medium wheel hardness suitable for harder workpiece materials
• Semi-friable grain structure self-sharpens during use to maintain cutting efficiency
• Non-porous, non-recessed Type 1 flat profile for surface and cylindrical grinding setups
• Series 38A Type 1 designation with specification code 38A46-HVBE

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. Requires a machine arbor that accepts a 5-inch bore and operates at or below 1800 RPM.

Installation Notes

Mounting and dressing of grinding wheels should be performed by a qualified machinist or grinding equipment operator following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels, and verify that the machine spindle speed does not exceed the 1800 RPM maximum rating stamped on the wheel. Use correct flange hardware rated for the wheel diameter and arbor size.