Norton 66253364414 Surface Grinding Wheel 14x2x5 60 Grit

Product Description

The NORTON 66253364414 is a Type 1 surface grinding wheel engineered for demanding material removal on hard ferrous metals and superalloys. Built with a ceramic abrasive grain and a vitrified bond, it delivers consistent stock removal and long wheel life on surface grinders, cylindrical grinders, and CNC cutting tool machines. The wheel measures 14 inches in diameter, 2 inches thick, with a 5-inch arbor hole, and is rated to a maximum of 1800 RPM. At 60 grit and J hardness, it falls in the medium grade range, offering an efficient balance between cut rate and surface finish. The porous, semi-friable ceramic structure promotes cool cutting and reduces heat buildup on heat-sensitive workpieces.

This wheel is suited for production and toolroom grinding applications where material hardness demands a high-performance abrasive. Typical applications include surface grinding of 400 series stainless steel, hard carbon steels, tool steels, titanium, superalloys, cast iron, ductile iron, and gray iron. It is designed for wet grinding operation, making it appropriate for shops running coolant-equipped surface or cylindrical grinders where thermal control is a priority.

Key Features

• Ceramic abrasive grain for aggressive stock removal on hard and difficult-to-grind materials
• Vitrified bond with porous structure promotes coolant flow and reduces heat at the grinding interface
• 60 grit, J hardness (medium grade) suited for efficient material removal with acceptable surface finish
• Rated for wet grinding operation — compatible with standard water-soluble and synthetic coolants
• Semi-friable grain continuously self-sharpens to maintain cut rate over wheel life
• No-recess, no-taper Type 1 straight wheel geometry fits standard surface and cylindrical grinder flanges

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, superalloys, cast iron, ductile iron, and gray iron. Specification code 5SG60-JVS. Maximum operating speed is 1800 RPM — verify machine RPM does not exceed wheel rating before mounting.

Installation Notes

Grinding wheel installation must be performed by a qualified machinist or tool and die professional following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Perform a ring test before mounting to check for cracks, and use proper blotting paper flanges of matching diameter. Never exceed the 1800 RPM maximum speed rating marked on the wheel.