Norton 66252942524 Surface Grinding Wheel 60 Grit

Product Description

The NORTON 66252942524 is a Type 1 straight surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. It uses an aluminum oxide abrasive bonded in a vitrified matrix, producing consistent cut rates and predictable wheel wear across extended use. The wheel measures 7 inches in diameter, 1 inch thick, with a 1-1/4 inch arbor hole, and is rated to a maximum of 3600 RPM. At 60 grit with an I hardness code and medium grade classification, it is suited for moderate material removal where surface finish and dimensional accuracy are both factors. Machinists, tool grinders, and shop maintenance technicians are the primary users.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Documented material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous, vitrified bond structure promotes chip clearance and coolant penetration, which is especially useful when grinding harder steels or working with materials prone to heat buildup. The NORTON 32A series designation places this wheel in a well-established aluminum oxide product line used across general-purpose precision grinding.

Key Features

• Aluminum oxide abrasive for consistent cut rate on ferrous and non-ferrous metals
• Vitrified bond with porous structure for improved chip clearance and coolant flow
• 60 grit, medium grade (I hardness) for balanced material removal and surface control
• Type 1 straight wheel geometry with no recess and no taper — fits standard spindle setups
• Rated to 3600 RPM maximum operating speed
• NORTON 32A series specification: 32A60-IVBE

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a Type 1 straight wheel with a 1-1/4 inch arbor hole. Confirmed compatible material applications include 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 qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test per standard procedure. Power down and lock out the grinder before changing wheels. Never exceed the maximum operating speed of 3600 RPM, and ensure the machine spindle speed is confirmed before startup.