Norton 66253364049 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253364049 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Constructed from aluminum oxide abrasive in a vitrified bond, this wheel delivers consistent cutting action and thermal stability across extended grinding cycles. The coarse 46 grit and K hardness rating (medium) make it well suited for aggressive material removal where surface finish is secondary to throughput. Rated at a maximum of 1800 RPM, the wheel measures 14 inches in diameter, 1 inch thick, with a 5-inch arbor hole. Installation and operation require a compatible spindle and guarding setup rated for the wheel dimensions.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in professional shop environments. The 38A Series aluminum oxide formulation is a standard choice for grinding soft carbon steels, tool steels, and super alloys where wheel life and cut rate need to stay balanced. The non-porous, non-tapered, non-recessed profile fits standard Type 1 mounting configurations. Shops running high-volume tool reconditioning or surface prep on structural components will find the coarse grit appropriate for roughing passes before finish grinding operations.

Key Features

• 46 grit coarse aluminum oxide abrasive for aggressive stock removal
• Vitrified bond provides rigidity and thermal resistance during dry or wet grinding
• K hardness (medium) rating balances wheel wear against cutting efficiency
• Semi-friable abrasive exposes fresh cutting edges as the wheel wears
• Type 1 flat profile with no recess and no taper for straightforward mounting
• Compatible with surface grinders, cylindrical grinders, and CNC tool machines

Compatibility

Suitable for use on CNC cutting tool machines, cylindrical grinders, and surface grinders. Rated for soft carbon steels, tool steels, and super alloys per the 38A Type 1 Series specification 38A46-KVBE.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator. Power down and lock out the machine before mounting or removing any grinding wheel. Inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the 1800 RPM maximum speed rating. Ensure the machine spindle, flanges, and guards are rated for a 14-inch diameter wheel before operation.