Norton 66253043756 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253043756 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and high-performance alloys. Built on an aluminum oxide abrasive with a vitrified bond, it delivers consistent cut rates and predictable wear across extended runs. The wheel measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and is rated to 3600 RPM. H hardness and medium grade make this wheel suitable for controlled material removal without excessive loading or glazing. It carries the 38A60-HVBE specification designation used by toolroom and production grinding professionals.

This wheel is intended for surface grinding, cylindrical grinding, and CNC cutting tool machine applications. Material applications include soft carbon steels, tool steels, and super alloys. The semi-friable aluminum oxide grain continuously fractures under load to expose fresh cutting edges, maintaining aggressiveness throughout the wheel life. The white, non-porous, non-tapered Type 1 form fits standard surface grinder spindles and is a common choice in toolroom environments where dimensional accuracy is critical.

Key Features

• Type 1 flat wheel profile with no recess — straightforward mounting on surface and cylindrical grinders
• Aluminum oxide abrasive, semi-friable grade — self-sharpening under load for consistent cut
• Vitrified bond — open structure promotes coolant flow and chip clearance
• H hardness, medium grade — balances wheel life against material removal rate on steels and super alloys
• 3600 RPM maximum speed rating — confirm machine RPM before mounting
• 38A60-HVBE specification — recognized series designation for toolroom traceability

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suited for grinding soft carbon steels, tool steels, and super alloys. The 1-1/4 inch arbor hole fits standard spindle configurations on machines accepting Type 1 wheels at this diameter.

Installation Notes

Grinding wheel installation must be performed by a qualified operator following ANSI B11.9 or applicable shop safety standards. Power down and lock out the grinder before mounting or removing any wheel. Perform a ring test before installation to check for cracks — do not mount a wheel that fails the ring test. Never exceed the 3600 RPM maximum speed marked on the wheel, and always use proper flanges and blotters of the correct diameter.