Norton 66253044425 Surface Grinding Wheel 8in 80 Grit

Product Description

The NORTON 66253044425 is a Type 1 surface grinding wheel built for precision stock removal on a wide range of materials including stainless steel, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone. The wheel measures 8 inches in diameter and 1 inch thick with a 1-1/4 inch arbor hole. It uses a silicon carbide abrasive bonded in a vitrified matrix, which provides consistent cutting action and good form retention during surface grinding operations. At 80 grit and I hardness, this wheel falls in the medium grade range, making it appropriate for moderate material removal where surface finish and dimensional accuracy both matter.

This wheel is rated for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is well-suited for shop and production environments handling non-ferrous metals, cast iron, and hard non-metallic materials. The green silicon carbide compound is particularly effective on titanium and 300 series stainless steel, where friability and sharp cutting edges help prevent loading. It carries the 39C80-IVMT specification designation, identifying the abrasive type, grit, hardness, and bond system in standard Norton nomenclature.

Key Features

• Silicon carbide abrasive with vitrified bond for consistent cutting and good wheel life
• 80 grit, medium grade (I hardness) for balanced stock removal and surface finish
• Type 1 straight wheel profile with no recess, no taper
• Rated to 3600 RPM maximum operating speed
• Non-porous structure; green wheel color for quick visual identification
• Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone.

Installation Notes

Wheel mounting and dressing should be performed by a qualified machinist or grinding specialist following ANSI B7.1 safety standards. Always power down and de-energize the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation and perform a ring test per manufacturer guidelines. Never exceed the rated maximum speed of 3600 RPM.