Norton 66253364239 Surface Grinding Wheel 60 Grit 14 in

Product Description

The NORTON 66253364239 is a Type 1 straight-profile surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rates and thermal stability across long production runs. The wheel measures 14 inches in diameter, 1-1/2 inches thick, with a 5-inch arbor hole. At 60 grit and I hardness (medium grade), it strikes the balance between aggressive material removal and surface finish quality. Rated to 1800 RPM, it is suited for shop-floor surface grinders and CNC tool grinding operations handled by machinists and tool-and-die professionals.

This wheel is a fit for production and job-shop environments running surface grinders, cylindrical grinders, and CNC cutting tool machines. The 32A specification designates NORTON's aluminum oxide grain blend, optimized for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous structure promotes chip clearance and coolant penetration, reducing heat buildup during extended cuts on thermally sensitive materials.

Key Features

• Aluminum oxide abrasive grain for versatile ferrous and non-ferrous metal grinding
• Vitrified bond provides rigidity and open structure for consistent cut rate
• 60 grit, I hardness (medium grade) balances stock removal with surface finish
• Porous wheel structure improves chip clearance and coolant flow
• Type 1 straight profile with no recess, compatible with standard surface grinder spindle setups
• Rated at 1800 RPM maximum operating speed

Compatibility

Designed 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. Arbor hole size of 5 inches fits standard surface grinder spindle configurations for this wheel diameter class.

Installation Notes

Grinding wheel installation must be performed by a qualified machinist or grinder operator following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the 1800 RPM maximum rated speed. Use proper reducing bushings if required to match spindle arbor size, and ensure flanges, blotters, and guards are correctly fitted before powering the machine. Power down and lock out the grinder before mounting or removing the wheel.