Norton 66252836548 Surface Grinding Wheel 80 Grit 6 in

Product Description

The NORTON 66252836548 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and hard alloys. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cutting action and shape retention across extended use. The wheel measures 6 inches in diameter and 1/2 inch thick with a 1/2 inch arbor hole, and is rated to a maximum of 4140 RPM. At 80 grit with a K hardness (medium grade), it suits controlled material removal on soft carbon steels, tool steels, and super alloys where surface finish and dimensional accuracy both matter.

This wheel fits standard surface grinders, cylindrical grinders, and CNC cutting tool machines. The 38A series aluminum oxide formulation is a common choice in tool rooms and production grinding applications where the workpiece material is sensitive to heat buildup. Semi-friable grain structure allows the wheel to self-sharpen during use, helping maintain cut rate on harder tool steels and super alloys without excessive glazing.

Key Features

• Aluminum oxide abrasive, semi-friable — self-sharpens during grinding to maintain cut rate
• Vitrified bond provides rigid wheel structure and precise form holding
• 80 grit, K hardness (medium) — suited for controlled stock removal with acceptable surface finish
• Rated to 4140 RPM maximum operating speed
• Non-porous, no recess, no taper — standard Type 1 straight wheel geometry
• 38A series specification: 38A80-KVBE

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include soft carbon steels, tool steels, and super alloys. Fits machines with a 1/2 inch arbor and wheel guards rated for the 6 inch diameter and 4140 RPM operating speed.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding technician following ANSI B11.9 safety standards for grinding machines. Always inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI B7.1 guidelines. Power down and lock out the machine before changing wheels. Do not exceed the maximum RPM stamped on the wheel or listed in the manufacturer documentation.