Norton 66253044096 Surface Grinding Wheel 8in 80 Grit

Product Description

The NORTON 66253044096 is a Type 1 surface grinding wheel designed for precision stock removal and finishing on hard ferrous metals and exotic alloys. Built with a ceramic abrasive grain and vitrified bond, it delivers consistent cutting action and thermal resistance across a range of demanding applications. The wheel measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. Rated at 3600 RPM maximum, it carries an 80 grit, J hardness (medium grade) specification, making it well-suited for moderate material removal where surface finish control matters. Licensed trades and tool room operators rely on this wheel for repeatable results on tight-tolerance work.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both production and tool room environments. It is engineered for aggressive-yet-controlled grinding of 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The porous, semi-friable ceramic grain structure promotes cooler cutting by reducing heat buildup at the workpiece, which is critical when working with heat-sensitive alloys and hardened tool steels.

Key Features

• Ceramic abrasive grain with vitrified bond for consistent cut rate and long wheel life
• 80 grit, J hardness (medium grade) suited for moderate stock removal with surface finish control
• Porous, semi-friable structure reduces heat buildup during grinding of heat-sensitive alloys
• Rated to 3600 RPM maximum for safe operation on standard surface and cylindrical grinders
• Type 1 flat wheel profile with no recess, compatible with standard straight-wheel guard configurations
• Designated material applications include stainless steel, tool steels, titanium, super alloys, and cast and ductile iron

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Series designation is 5SG Type 1.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or tool room technician following ANSI B11.9 and OSHA 29 CFR 1910.215 safe guarding requirements. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before mounting and perform a ring test; never mount a damaged wheel. Ensure the spindle speed of the machine does not exceed the 3600 RPM maximum rating marked on the wheel.