Norton 66253262567 Surface Grinding Wheel 12in 46 Grit

Product Description

The NORTON 66253262567 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Constructed with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent, controlled cutting action across a wide range of materials. The 46-grit coarse grade removes material aggressively while the J hardness code indicates a medium-hard bond that resists breakdown under sustained load. Rated at a maximum of 2070 RPM, it measures 12 inches in diameter, 1 inch thick, and carries a 3-inch arbor hole. Weight is 9.045 pounds. Licensed machinists and grinding technicians install this wheel on surface and cylindrical grinder spindles for flat surface finishing and tool reconditioning.

This wheel is suited for surface grinding operations in industrial machine shops, tool rooms, and production environments. Compatible materials 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 with CNC cutting tool machines, cylindrical grinders, and surface grinders. The porous, non-tapered, no-recess design supports free cutting and heat dissipation during extended grinding passes.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, repeatable cut rate
• 46-grit coarse grade rated for aggressive material removal on a broad range of metals
• J hardness (medium) bond resists glazing while holding form under load
• Non-tapered, no-recess Type 1 profile fits standard straight-wheel surface grinder flanges
• Porous wheel structure aids coolant penetration and chip clearance
• Specification designation 32A46-JVBE identifies exact wheel composition for cross-referencing

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders. 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

Installation should be performed by a qualified machinist or grinding technician following the wheel manufacturer's and machine builder's mounting procedures. Before mounting, inspect the wheel for cracks or chips using a ring test and confirm the machine spindle speed does not exceed the 2070 RPM maximum rating marked on the wheel. Power down and lock out the grinder before removing the existing wheel and seating the new one. Use proper reducing bushings if required to achieve a snug, non-forced fit on the arbor, and always install blotter washers between the wheel and flanges as required by ANSI B7.1 safety standards.