Norton 66252906094 Surface Grinding Wheel 46 Grit 7in

Product Description

The NORTON 66252906094 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals. Built from aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent, controlled cutting action across a wide range of steel applications. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The 46-grit, J-hardness (coarse grade) specification makes it well-suited for aggressive material removal where surface finish is secondary to cut rate. Rated at a maximum of 3600 RPM, it meets the demands of production grinding in shop and industrial environments. The porous structure aids in chip clearance and heat dissipation during extended runs.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It performs on hard carbon steels, soft carbon steels, and tool steels. The 32A Type 1 series designation identifies it as a straight-face wheel, the standard configuration for horizontal-spindle surface grinding. It fits into typical production and toolroom workflows where repeatable, flat-surface results are required on steel workpieces.

Key Features

• Aluminum oxide abrasive for reliable cutting on carbon and tool steels
• Vitrified bond provides rigidity and consistent wheel breakdown during grinding
• 46 grit, coarse grade for aggressive stock removal
• J hardness (medium hardness rating) balances wheel life against cut aggressiveness
• Porous structure supports chip clearance and reduces heat buildup
• Type 1 straight wheel profile fits standard surface and cylindrical grinder spindles

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. Arbor hole size of 1-1/4 inches fits standard spindle configurations for this wheel class.

Installation Notes

Installation should be performed by a qualified grinding machine operator or toolroom technician following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Before mounting, inspect the wheel for cracks or chips using the ring test. Ensure the machine spindle speed does not exceed the 3600 RPM maximum marked on the wheel. Use proper flanges and a blotter on each side of the wheel, and allow the wheel to run at operating speed for at least one minute behind a guard before grinding.