Norton 66253043724 Surface Grinding Wheel 60 Grit 8 in

Product Description

The NORTON 66253043724 is a Type 1 straight surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel is constructed with aluminum oxide abrasive grain bonded in a vitrified matrix, producing a medium-grade, porous structure rated at H hardness. It carries a maximum operating speed of 3600 RPM. This wheel is a standard choice for machinists and tool-and-die professionals performing flat surface grinding on a wide range of workpiece materials.

The 66253043724 is suited for surface grinding operations in job shop, production, and maintenance environments. Typical applications include finish and rough grinding on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The gray, porous wheel structure supports chip clearance and reduces heat buildup during extended cuts.

Key Features

• Type 1 straight wheel profile with no recess, compatible with standard surface grinder arbors
• Aluminum oxide abrasive grain suited for steels, cast iron, and aluminum applications
• Vitrified bond provides rigidity and consistent form holding during surface grinding
• 60 grit, H hardness (medium grade) delivers a balance of stock removal rate and finish quality
• Porous wheel structure promotes coolant flow and reduces thermal loading on the workpiece
• Specification code 32A60-HVBE identifying grain type, grit, hardness, and bond formulation

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for material applications including 400 series stainless, 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 following ANSI B11.9 and OSHA 29 CFR 1910.215 safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels. Never exceed the rated maximum operating speed of 3600 RPM.