Norton 66253043713 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253043713 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. Built with an aluminum oxide abrasive grain and a vitrified bond, this wheel delivers consistent cutting action and thermal stability under sustained grinding loads. It measures 8 inches in diameter, 0.5 inches thick, with a 1.25-inch arbor hole, and carries a coarse 46-grit rating with an I hardness code. Rated to 3,105 RPM, it is suited for tool rooms and production surface grinding where controlled material removal is the priority. The gray vitrified wheel is porous, which aids in coolant retention and heat dissipation during extended passes.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both job-shop and production environments. Material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The coarse grit and medium hardness rating make it appropriate for aggressive stock removal rather than finish grinding. The wheel specification designation is 32A46-IVBE, part of the NORTON 32A Type 1 series.

Key Features

• Aluminum oxide abrasive grain — effective on a wide range of ferrous and non-ferrous metals
• Vitrified bond with porous structure for coolant flow and heat control during heavy cuts
• 46-grit coarse grade for efficient stock removal
• I hardness code (medium) balances wheel life against cutting aggression
• Type 1 straight wheel profile fits standard surface and cylindrical grinder arbors
• 3,105 RPM maximum speed rating

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Compatible with applications involving 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Arbor hole size is 1.25 inches.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machine operator or tool-room technician following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels, and verify that the machine spindle speed does not exceed the wheel's 3,105 RPM maximum rating. Use proper flanges and blotters as specified by the grinder manufacturer.