Norton 66253043727 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253043727 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals in industrial and shop environments. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel is constructed with aluminum oxide abrasive and a vitrified bond, delivering a medium-grade cut rated at J hardness. Maximum operating speed is 3600 RPM. The 32A Series designation indicates a well-established aluminum oxide grain structure suited for consistent material removal on hard and soft metals. Machinists and tool grinders install this wheel on surface grinders and cylindrical grinders.

This wheel is suited for surface grinding applications in production and maintenance shops handling a wide range of metals. Compatible material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The porous, vitrified-bond construction allows coolant penetration and chip clearance during prolonged cuts, reducing heat buildup at the workpiece.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, controlled stock removal
• 60 grit, J hardness (medium grade) for general-purpose surface grinding
• Porous wheel structure promotes coolant flow and reduces thermal loading
• Type 1 flat wheel profile with no recess, compatible with standard surface grinder flanges
• Rated to 3600 RPM maximum operating speed
• 32A Series specification (32A60-JVBE) for traceability and replacement sourcing

Compatibility

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

Installation Notes

Wheel mounting and dressing should be performed by a qualified machinist or grinding equipment operator. Before mounting, inspect the wheel for cracks using the ring test per ANSI B7.1 standards, and ensure the machine spindle speed does not exceed the 3600 RPM maximum rating marked on the wheel. Power down and lock out the grinder before changing wheels. Always use properly sized, clean flanges and blotters; never overtighten the arbor nut.