Norton 66252938884 Surface Grinding Wheel 80 Grit 7in

Product Description

The NORTON 66252938884 is a Type 1 straight surface grinding wheel engineered for precision stock removal on steel workpieces. It features an aluminum oxide abrasive bonded with a vitrified bond system, producing a porous, free-cutting wheel structure rated at a medium grade with K hardness. At 7 inches in diameter, 1/2 inch thick, and bored to 1-1/4 inches, this wheel fits standard surface grinder and cylindrical grinder spindles. The 80 grit designation delivers a balance of material removal rate and surface finish quality, making it a reliable choice for production grinding on ferrous metals. Maximum operating speed is 3600 RPM.

This wheel is intended for grinding hard carbon steels, soft carbon steels, and tool steels. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The vitrified bond offers good form holding and consistent cut rate across the face of the wheel, making it well suited to flat surface grinding operations in tool rooms, maintenance shops, and production grinding cells where tight tolerances on steel components are required.

Key Features

• Aluminum oxide abrasive construction for effective grinding of ferrous and tool steel materials
• Vitrified bond provides rigid wheel structure and predictable wear characteristics
• Porous wheel structure promotes coolant flow and chip clearance during grinding
• 80 grit medium grade balances material removal and surface finish on steel
• K hardness (medium) rating supports consistent performance across varied feed rates
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding hard carbon steels, soft carbon steels, and tool steels. The 1-1/4 inch bore fits standard spindle arbors on machines accepting Type 1 straight wheels in this size class.

Installation Notes

Installation should be performed by a qualified machine operator or grinding specialist 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. Power down and lock out the grinder before mounting or removing any wheel. Never exceed the maximum operating speed of 3600 RPM marked on the wheel or its blotter.