Norton 66252941204 Surface Grinding Wheel 46 Grit

Product Description

The NORTON 66252941204 is a Type 1 surface grinding wheel designed for aggressive material removal on ferrous and non-ferrous metals. Built with an aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rate and form retention across extended grinding cycles. The wheel measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. At a 46 grit coarse grade with a G hardness code, it is suited for stock removal applications where surface finish is secondary to throughput. Rated at a maximum of 3,600 RPM, it meets standard speed requirements for most surface and cylindrical grinding equipment.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both production shop and toolroom environments. It is well matched to applications involving 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The coarse grit and soft hardness rating allow the wheel to cut freely on harder materials without loading or glazing. It is a practical choice for maintenance shops, machine shops, and tool and die operations requiring reliable, repeatable grinding performance.

Key Features

• Aluminum oxide abrasive for broad material compatibility including stainless, carbon steels, tool steels, and cast iron
• Vitrified bond provides rigidity, form retention, and resistance to oils and coolants
• 46 grit coarse grade optimized for high stock removal rates
• G hardness code (soft) promotes free cutting action and reduces heat buildup on harder workpieces
• Porous structure aids coolant flow and chip clearance during wet or dry grinding
• Type 1 straight wheel geometry fits standard surface grinder spindle setups

Compatibility

Designed 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. Series designation 32A Type 1.

Installation Notes

Installation should be performed by a qualified grinding machine operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test to check for internal fractures. Power down and lock out the machine before mounting or removing the wheel. Never exceed the maximum rated speed of 3,600 RPM, and always use the correct arbor flanges and blotters for proper clamping.