Norton 66253262054 Surface Grinding Wheel 46 Grit 12 in

Product Description

The NORTON 66253262054 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals. Built on an aluminum oxide abrasive with a vitrified bond, it delivers consistent cutting action and thermal stability across extended grinding cycles. The wheel measures 12 inches in diameter, 1 inch thick, with a 3-inch arbor hole. At a 46 grit, coarse grade with an I hardness rating and a maximum operating speed of 2,070 RPM, it is suited for aggressive material removal where surface finish is secondary to throughput. Licensed machinists, tool-and-die technicians, and CNC grinding operators are the primary installers and users.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It performs well on hard carbon steels, soft carbon steels, and tool steels. The vitrified bond structure is rated porous, which promotes coolant flow and chip clearance during wet or dry grinding operations. Its coarse, medium-hardness profile makes it a practical choice for initial surface conditioning and heavy material removal passes in production grinding environments.

Key Features

• Aluminum oxide abrasive for reliable performance on carbon and tool steels
• Vitrified bond provides rigidity and thermal resistance during grinding
• Porous wheel structure promotes chip clearance and coolant flow
• 46 grit coarse grade suited for high material removal rates
• I hardness (medium) balances wheel wear with consistent cutting action
• No recess, no taper — standard Type 1 straight wheel geometry for broad machine compatibility

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include hard carbon steels, soft carbon steels, and tool steels as specified by the manufacturer.

Installation Notes

Grinding wheel mounting must be performed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always perform a ring test before mounting and inspect the wheel for cracks or chips. Never exceed the maximum operating speed of 2,070 RPM. Guard the wheel properly and allow it to run at operating speed for at least one minute before engaging the workpiece.