Norton 66253363970 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253363970 is a Type 1 surface grinding wheel built for demanding material removal on hard ferrous metals and exotic alloys. Measuring 14 inches in diameter, 1 inch thick, with a 5-inch arbor hole, it is engineered with a ceramic abrasive grain and a vitrified bond system. The 46 grit, coarse grade construction delivers aggressive stock removal, while the medium hardness rating (Grade I) provides the controlled breakdown needed to keep the wheel cutting freely without glazing. Maximum operating speed is 1,800 RPM. Licensed machinists, tool and die makers, and industrial grinding technicians are the primary installers of this wheel.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The ceramic grain and semi-friable structure make it well suited for applications involving 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. It carries the series designation 5SG Type 1 and is a non-recessed, non-tapered straight wheel configuration. The blue wheel color is characteristic of the 5SG ceramic series.

Key Features

• Ceramic abrasive grain for aggressive cutting on hard-to-grind materials including tool steels and super alloys
• Vitrified bond provides rigid wheel structure and consistent form holding during surface grinding operations
• 46 grit coarse grade delivers high material removal rates per pass
• Medium hardness (Grade I) allows controlled grain release to prevent glazing
• Semi-friable grain structure exposes fresh cutting edges as the wheel wears
• Type 1 straight wheel profile with no recess and no taper for straightforward mounting

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable material applications include 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron.

Installation Notes

Mounting and dressing of grinding wheels must be performed by qualified personnel following ANSI B7.1 safety code requirements. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the maximum rated RPM of 1,800. Proper flanges and a compatible blotter must be used to ensure safe wheel seating.