Norton 66252942513 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252942513 is a Type 1 vitrified aluminum oxide surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Measuring 7 inches in diameter and 1 inch thick with a 1-1/4 inch arbor hole, this wheel carries a 46-grit coarse grade and an H hardness code, placing it in the softer end of the hardness scale for efficient, cool cutting. A maximum operating speed of 3600 RPM is marked on the wheel. The vitrified bond and porous structure allow coolant penetration and chip clearance, reducing heat buildup during extended surface grinding operations. Machinists and tool-and-die professionals specify this wheel for production and maintenance grinding work.

This wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both shop and production environments. It performs across 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 coarse grit makes it well matched to aggressive material removal passes where surface finish is secondary to stock removal rate. The wheel ships as a single unit and is identified by the specification designation 32A46-HVBE.

Key Features

• 46-grit coarse aluminum oxide abrasive for aggressive stock removal on steel, iron, and aluminum
• Vitrified bond with porous structure promotes coolant flow and chip ejection to reduce heat
• H hardness code provides a softer wheel action that releases dull grains and self-dresses efficiently
• Type 1 flat wheel profile fits standard surface grinder and cylindrical grinder spindle configurations
• 1-1/4 inch arbor hole accommodates common spindle sizes found on production grinding machines
• Specification designation 32A46-HVBE confirms Norton 32A aluminum oxide grain series

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for material applications including 400 Series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Mounting and dressing of grinding wheels should be performed by a qualified machinist or grinding specialist following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Inspect the wheel for cracks or chips before mounting and perform a ring test. Always match the machine spindle speed to the wheel's 3600 RPM maximum and never exceed it. Power down and lock out the machine before changing wheels, and use the proper flanges and blotter papers as specified by the grinder manufacturer.