Norton 66253044790 Surface Grinding Wheel 46 Grit 8 Inches

Product Description

The NORTON 66253044790 is a Type 5 surface grinding wheel designed for precision stock removal on a wide range of ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, it carries a 46 grit, coarse grade designation suited for aggressive material removal while maintaining consistent wheel geometry. The wheel measures 8 inches in diameter and 1 inch thick with a 1-1/4 inch arbor hole. It is rated to a maximum of 3,105 RPM and falls into hardness code I, which reflects a medium hardness rating on the vitrified scale. Licensed grinding machine operators and tool room machinists are the primary installers and end users of this wheel.

This grinding wheel is engineered for use on surface grinders and cylindrical grinders in shop and industrial environments. The aluminum oxide abrasive construction makes it well suited for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The one-side recessed Type 5 profile reduces wheel weight and allows clearance for flanges on appropriate grinding spindles. It fits both production grinding and toolroom applications where a coarse, free-cutting wheel is required for high material removal rates.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, controlled cut
• 46 grit coarse grade for high material removal rates
• Type 5 one-side recessed profile with 1/2 inch recess depth and 3-1/4 inch recess diameter
• Medium hardness code I rating for balanced wheel wear and cutting action
• Rated to 3,105 RPM maximum operating speed
• Compatible with 400 series stainless, carbon steels, tool steels, aluminum, and iron grades

Compatibility

Designed for use with surface grinders and cylindrical grinders. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test on vitrified wheels. Never exceed the maximum RPM stamped or labeled on the wheel.