Norton 66252942429 Surface Grinding Wheel 60 Grit 7 in

Product Description

The NORTON 66252942429 is a Type 1 surface grinding wheel designed for aggressive stock removal on hard ferrous metals and exotic alloys. Built around a ceramic abrasive grain bonded in a vitrified matrix, this wheel delivers consistent cut rate and long service life on demanding materials including stainless steel, tool steels, titanium, super alloys, and cast iron. The wheel measures 7 inches in diameter and 1 inch thick with a 1-1/4 inch arbor hole, rated to a maximum of 3600 RPM. At 60 grit with a J hardness code and medium grade classification, it is suited to moderate to heavy material removal where wheel friability and grain exposure are critical to performance.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in production and tool-room environments. Typical applications include surface grinding of 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, and both ductile and gray iron. The semi-friable ceramic grain continuously self-sharpens under load, making it well suited to high-pressure grinding passes where a conventional aluminum oxide wheel would glaze or burn the workpiece.

Key Features

• Ceramic abrasive grain with semi-friable structure for continuous self-sharpening during cut
• Vitrified bond provides rigid grain retention and open wheel structure for coolant penetration
• 60 grit, J hardness, medium grade — balanced stock removal and surface finish for ferrous materials
• Porous wheel construction promotes chip clearance and reduces heat buildup at the workpiece
• Blue wheel color for visual identification of ceramic grain series
• Type 1 straight wheel profile with no recess — compatible with standard surface and cylindrical grinder flanges

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include 400 Series Stainless, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel installation and dressing must be performed by qualified personnel following ANSI B7.1 safety standards. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before each use — do not mount a damaged wheel. Verify the machine spindle speed does not exceed the 3600 RPM maximum rating marked on the wheel before operation.