Norton 66253246887 Surface Grinding Wheel 10in 46 Grit

Product Description

The NORTON 66253246887 is a Type 1 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. Measuring 10 inches in diameter and 1 inch thick with a 3-inch arbor hole, this wheel runs at a maximum of 3250 RPM. The 46-grit, K-hardness (medium) bond provides a coarse cutting action suited to aggressive material removal while maintaining stable wheel structure. It weighs 5.83 pounds and carries a non-porous vitrified bond construction for consistent performance and dressing response. Licensed HVAC, plumbing, and fabrication shops alike rely on vitrified wheels of this specification for repeatability across long production runs.

This wheel is rated for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Compatible material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is well suited to production grinding environments where a durable, coarse-cut wheel is needed to flatten surfaces, remove scale, or reduce stock on a variety of workpiece materials. The 3-inch hole accommodates standard machine spindle flanges common to industrial surface grinder setups.

Key Features

• Type 1 straight wheel profile — no recess, no taper — for flat surface and cylindrical grinding
• 46-grit aluminum oxide abrasive delivers coarse, high-stock-removal cutting action
• K hardness code (medium) vitrified bond resists glazing while holding form
• 3250 RPM maximum operating speed rated for safe use on standard industrial grinders
• Non-porous vitrified bond for consistent dressing and predictable wheel wear
• Broad material compatibility covering stainless, carbon steels, tool steels, aluminum, and cast iron

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Series designation is 32A Type 1.

Installation Notes

Grinding wheel mounting and replacement should be performed by a qualified machine operator or toolroom technician following ANSI B11.9 and OSHA 1910.215 requirements. Always power down and lock out the grinder before removing or installing a wheel. Inspect the wheel for cracks or chips before mounting, perform a ring test, and confirm the machine spindle speed does not exceed the 3250 RPM maximum marked on the wheel. Never exceed the rated speed and ensure flanges and blotters are properly seated before operating.