Norton 66253043883 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253043883 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. It measures 8 inches in diameter and 1/2 inch thick, with a 1-1/4 inch arbor hole for standard surface grinder spindle mounting. The abrasive is aluminum oxide with a vitrified bond, a combination well suited to controlled, consistent cutting action. At 46 grit and H hardness (coarse grade), this wheel cuts aggressively while the vitrified bond resists loading. It is rated to 3600 RPM maximum and follows the manufacturer specification designation 32A46-HVBEP. Machinists, tool-and-die technicians, and grinding specialists are the primary installers and users of this wheel.

This wheel is suited for surface grinding operations across a wide range of materials, including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Compatible equipment includes surface grinders, cylindrical grinders, and CNC cutting tool machines. The coarse grit and porous structure make it well matched to applications requiring fast material removal rather than fine finishing. It is a common choice in job shops and production grinding environments where consistent cut rates on varied stock are required.

Key Features

• Aluminum oxide abrasive provides durable, sharp cutting action across ferrous and non-ferrous metals
• Vitrified bond resists loading and maintains wheel form during extended surface grinding passes
• 46 grit coarse grade suited for aggressive stock removal applications
• H hardness rating (soft-to-medium range) allows the wheel to shed dull grains and self-sharpen during use
• Porous structure promotes coolant flow and chip clearance, reducing heat buildup at the workpiece
• 1-1/4 inch arbor hole fits standard surface and cylindrical grinder spindles without adapter in most configurations

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Verify spindle speed does not exceed the 3600 RPM maximum wheel rating before mounting.

Installation Notes

Wheel mounting and dressing should be performed by qualified machinists or grinding technicians following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the maximum rated speed of 3600 RPM. Use proper flanges and blotters as specified by the grinder manufacturer; do not over-tighten the spindle nut.