Norton 66253262565 Surface Grinding Wheel 12in 46 Grit

Product Description

The NORTON 66253262565 is a Type 1 surface grinding wheel built for high-stock-removal applications on ferrous and non-ferrous metals. Constructed from aluminum oxide abrasive grain bonded with a vitrified bond, it delivers consistent cut rates and good form retention under repeated passes. The wheel measures 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole, and carries a coarse 46 grit rating with an I hardness code, placing it in the medium hardness range. Rated at a maximum of 2,070 RPM, this wheel is suited for production surface grinding where aggressive material removal is the priority. Licensed grinding technicians and tool-room machinists are the primary installers and operators.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both shop and production environments. It performs on a broad range of materials including 400 Series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Its porous structure aids coolant flow and chip clearance, making it practical for wet or dry grinding operations in tool-and-die, maintenance, and production machining settings.

Key Features

• Aluminum oxide abrasive grain for reliable cutting action on steels, cast iron, and aluminum
• Vitrified bond provides rigidity and consistent wheel geometry during grinding passes
• Coarse 46 grit removes material quickly, reducing cycle times on heavy stock removal
• Porous wheel structure promotes coolant penetration and chip clearance
• No recess, no taper — straight Type 1 profile for straightforward mounting
• Series specification 32A46-IVBE for precise wheel identification and replacement ordering

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.

Installation Notes

Grinding wheel mounting and dressing must be performed by a qualified operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before each use using the ring test; do not mount a damaged wheel. Confirm the machine spindle speed does not exceed the wheel's 2,070 RPM maximum rating before operation.