Norton 66252906093 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252906093 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous workpieces. Measuring 7 inches in diameter and 1/2 inch thick with a 1-1/4 inch arbor hole, this wheel is built around an aluminum oxide abrasive grain bonded in a vitrified matrix. The 46-grit, coarse-grade construction removes material aggressively while the I hardness rating and vitrified bond provide consistent wheel breakdown and a self-dressing action suited to production grinding environments. Rated at a maximum of 3600 RPM, it is appropriate for use on surface grinders, cylindrical grinders, and CNC cutting tool machines.

This wheel is designed for grinding hard carbon steels, soft carbon steels, and tool steels in industrial and machine shop settings. The Series 32A Type 1 straight-wheel profile mounts directly to surface grinder spindles and cylindrical grinder fixtures without requiring a recess or taper. It is a standard production choice for toolroom work, die grinding, and flat-surface finishing on steel components where a coarse, fast-cutting action is required. The porous structure promotes coolant flow and chip clearance during wet or dry grinding operations.

Key Features

• Aluminum oxide abrasive grain for reliable performance on hard and soft carbon steels and tool steels
• Vitrified bond provides a rigid, porous structure that supports consistent cutting action and self-dressing
• 46 grit coarse grade for aggressive stock removal
• I hardness code with medium hardness rating balances wheel wear against cutting efficiency
• Type 1 straight-wheel profile with no recess and no taper for direct spindle mounting
• 3600 RPM maximum speed rating for safe use on standard surface and cylindrical grinders

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding hard carbon steels, soft carbon steels, and tool steels. Fits spindles accepting a 1-1/4 inch arbor hole.

Installation Notes

Surface grinding wheels must be installed and dressed by a qualified machine operator or tool-and-die technician following the grinder manufacturer's guarding and arbor specifications. Inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI B7.1 standards. Always ensure the machine spindle speed does not exceed the 3600 RPM maximum rating stamped on the wheel. Power down and lock out the grinder before changing wheels.