Norton 66253363974 Surface Grinding Wheel 60 Grit 14 in

Product Description

The NORTON 66253363974 is a Type 1 surface grinding wheel engineered for demanding material removal on hard ferrous metals and exotic alloys. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent stock removal and long wheel life on surface grinders and cylindrical grinders. The 5SG series ceramic grain is semi-friable, meaning it fractures to expose fresh cutting edges throughout the wheel's life. At 14 inches in diameter, 1 inch thick, and rated to 1800 RPM, this wheel suits production and toolroom grinding applications where dimensional accuracy and surface finish are critical. Licensed HVAC and trade professionals recognize the 5SG series as a go-to for high-alloy and difficult-to-grind materials.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The medium grade and I hardness code make it well-suited for medium-pressure grinding passes on materials that tend to load or glaze softer wheels. It is a common choice in toolrooms, production shops, and maintenance facilities where a variety of hard or abrasion-resistant materials are processed regularly.

Key Features

• Ceramic abrasive grain (5SG series) for long life and consistent cut on hard alloys
• Semi-friable grain structure self-sharpens during grinding to maintain cut rate
• Vitrified bond provides rigidity and porosity for effective coolant and chip clearance
• Medium grade and I hardness code balance wheel life with aggressive stock removal
• Type 1 straight wheel profile fits standard surface grinder and cylindrical grinder spindle arbors
• 5-inch hole size accommodates common large-diameter grinding spindle flanges

Compatibility

Rated 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, super alloys, cast iron, ductile iron, and gray iron. Specification code 5SG60-IVS identifies the grain, grit, hardness, and bond for cross-reference and wheel dressing purposes.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding machine operator following ANSI B11.9 safety standards and the machine manufacturer's mounting instructions. Always inspect the wheel for cracks or chips using a ring test before mounting, and never exceed the 1800 RPM maximum rated speed. Power down and lock out the grinder before changing wheels, and use proper wheel flanges and blotters as specified for the arbor size. Eye and face protection must be worn during wheel mounting, dressing, and grinding operations.