Norton 66253246909 Surface Grinding Wheel 12in 60 Grit

Product Description

The NORTON 66253246909 is a Type 1 vitrified aluminum oxide surface grinding wheel built for material removal on ferrous and non-ferrous metals in production and toolroom environments. Measuring 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole, this wheel runs at a maximum of 2705 RPM and carries a medium-grade, J hardness rating. The vitrified bond provides rigidity and free-cutting action, making it well suited for flat surface grinding where dimensional accuracy and consistent stock removal are priorities. Licensed HVAC techs, machinists, and grinding specialists working with CNC or manual surface grinders will find this a direct-fit consumable for daily operations.

This wheel is rated for use on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is intended for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. The 32A Series designation identifies it as part of Norton's standard aluminum oxide vitrified line, with a non-porous, non-tapered, no-recess Type 1 flat wheel profile. The blue-gray color is characteristic of this series and can aid in quick identification on a busy grinding floor.

Key Features

• Aluminum oxide abrasive grain provides durable, consistent cutting action on a wide range of metals
• Vitrified bond offers rigid support and resistance to heat and coolant degradation
• J hardness (medium grade) balances wheel life and cut rate for general-purpose surface grinding
• Type 1 flat wheel profile with no recess and no taper fits standard surface and cylindrical grinder flanges
• Rated to 2705 RPM maximum for safe use on typical production grinding equipment
• Compatible with a broad material application range including stainless, carbon 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.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding technician following ANSI B11.9 and OSHA 29 CFR 1910.215 guarding requirements. Always inspect the wheel for cracks or chips before mounting and perform a ring test per manufacturer guidelines. Machine spindle speed must not exceed the 2705 RPM maximum rating marked on the wheel. Power down and lock out the machine before changing wheels, and ensure flanges are clean, flat, and properly torqued to manufacturer specification before resuming operation.