Norton 66252939548 Surface Grinding Wheel 60 Grit 7 in

Product Description

The NORTON 66252939548 is a Type 1 surface grinding wheel engineered for precision stock removal on a wide range of ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rates and predictable wheel breakdown. The wheel measures 7 inches in diameter, 1/4 inch thick, and carries a 1-1/4 inch arbor hole. Grit is 60 with a medium (I) hardness rating, making it suited for moderate material removal without excessive surface loading. Rated to 3600 RPM, it meets typical surface and cylindrical grinder operating speeds. Licensed grinding technicians and toolroom machinists are the primary installers.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Stated material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is a flat, straight-profile wheel with no recess and no taper, following standard Type 1 geometry. The Series 32A designation indicates a well-established aluminum oxide specification commonly specified in production grinding and toolroom environments for general-purpose ferrous and non-ferrous work.

Key Features

• Aluminum oxide abrasive for reliable cut rate on steel, cast iron, and aluminum
• Vitrified bond provides open, porous structure for cool cutting and consistent wheel performance
• 60 grit medium grade balances stock removal speed with acceptable surface finish
• Type 1 flat wheel geometry with no recess — straightforward mounting to standard arbors
• 3600 RPM max speed rating fits common surface and cylindrical grinder spindle speeds
• Series 32A specification (32A60-IVBE) for traceable, repeatable performance across batches

Compatibility

Specified for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Fits any machine spindle accepting a 1-1/4 inch arbor hole and operating at or below 3600 RPM.

Installation Notes

Grinding wheel mounting must be performed by a qualified operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always ring-test the wheel before mounting and inspect for cracks or damage. Power down and lockout the grinder before changing wheels, and never exceed the maximum RPM marked on the wheel. A flanged arbor with properly sized blotters should be used to distribute clamping load evenly across the wheel face.