Norton 66252941312 Surface Grinding Wheel 60 Grit 7 in

Product Description

The NORTON 66252941312 is a Type 1 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on ferrous and non-ferrous materials. Measuring 7 inches in diameter and 1/2 inch thick with a 1-1/4 inch arbor hole, it carries a 60-grit, medium-grade abrasive rated to 3,600 RPM. The vitrified bond provides rigidity and consistent cut rate under controlled feed conditions. The 32A series specification and F hardness code indicate a relatively soft wheel that releases worn grain readily, reducing heat buildup and glazing during surface and cylindrical grinding operations. Weight is 1.59 pounds.

This wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both production and toolroom environments. Intended applications include grinding 400-series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is a standard fit for shops running flat surface work or O.D. grinding where a medium-grade, open-structure wheel is specified to manage heat on a range of material hardnesses.

Key Features

• 60-grit aluminum oxide abrasive with medium grade for balanced cut rate and surface finish
• Vitrified bond provides rigid support and consistent grain exposure throughout wheel life
• F hardness code (soft) promotes self-dressing action to reduce glazing on hard workpiece materials
• Porous structure aids coolant retention and heat dissipation at the grinding interface
• 3,600 RPM maximum operating speed rated for standard surface and cylindrical grinder spindles
• No recess, no taper — straightforward Type 1 flat wheel geometry for easy mounting and dressing

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a 7-inch diameter, 1-1/4 inch arbor hole wheel. Suitable for material applications including 400 Series Stainless, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Installation should be performed by a qualified grinding machine operator or maintenance technician following ANSI B7.1 safe use standards for abrasive wheels. Before mounting, inspect the wheel for cracks or chips using the ring test and confirm the spindle speed does not exceed the 3,600 RPM wheel rating. Power down and lock out the grinder before changing wheels, and use proper flanges and blotters as specified by the machine manufacturer. Always dress the wheel with an appropriate dressing tool before beginning a new grinding operation.