Norton 66253038897 Surface Grinding Wheel 8in 80 Grit

Product Description

The NORTON 66253038897 is a Type 1 surface grinding wheel built for precision flat-surface stock removal on ferrous metals. Constructed with aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rates and good form-holding across a range of steel applications. The wheel measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. Rated at a maximum of 3600 RPM, it carries a medium (K) hardness grade, placing it in the middle of the hardness scale for balanced wheel life and cut efficiency. This is a straight wheel format with no recess and no taper, suitable for mounting on standard surface grinder spindles.

This wheel is intended for use on hard carbon steels, soft carbon steels, and tool steels in production and toolroom environments. Compatible machine types include surface grinders, cylindrical grinders, and CNC cutting tool machines. The 32A series designation identifies the aluminum oxide grain structure, making it a standard choice for general-purpose surface grinding where consistent finish quality and dimensional accuracy are required.

Key Features

• Type 1 straight wheel profile — no recess, no taper for straightforward surface grinding setups
• Aluminum oxide abrasive with vitrified bond for consistent grain exposure and long wheel life
• 80 grit, medium (K hardness) grade — suited for moderate stock removal with acceptable surface finish
• 3600 RPM maximum rated speed — verify machine speed before mounting
• Porous structure aids coolant flow and chip clearance during wet or dry grinding
• Blue wheel color identifies the 32A aluminum oxide series for easy shop-floor identification

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Designed for grinding hard carbon steels, soft carbon steels, and tool steels. Series specification: 32AA80-KVTR.

Installation Notes

Surface grinding wheels must be installed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Before mounting, perform a ring test to check for cracks, and confirm the machine spindle speed does not exceed the 3600 RPM wheel rating. Power down and lock out the grinder before changing wheels. Use proper flanges and blotters as required; never exceed the rated maximum speed under any operating condition.