Norton 66253019352 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253019352 is a Type 1 surface grinding wheel designed for precision flat and surface grinding applications in industrial and shop environments. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal on ferrous metals. It measures 8 inches in diameter and 1/2 inch thick, with a 1-1/4 inch arbor hole. The 60-grit medium-grade specification and H hardness code suit it for controlled material removal passes on hard and soft carbon steels and tool steels. Maximum operating speed is rated at 3600 RPM. Installation and operation are handled by machinists and tool-and-die professionals using compatible grinding machines.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both wet and dry grinding conditions. Its ruby-colored aluminum oxide construction and porous structure support heat dissipation during extended grinding cycles. Typical applications include toolroom work, die maintenance, and production surface grinding of hard carbon steels, soft carbon Steels, and tool steels where a medium-grade, moderately hard wheel is appropriate.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, repeatable grinding action
• 60-grit medium grade suited for stock removal on carbon and tool steels
• H hardness code (Soft-to-Medium range) helps the wheel shed dull grains and reduce heat buildup
• Porous wheel structure promotes coolant flow in wet grinding setups
• Rated for wet and dry operation up to 3600 RPM
• Type 1 flat wheel profile with no recess — compatible with standard surface and cylindrical grinder flanges

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding hard carbon steels, soft carbon steels, and tool steels. The 1-1/4 inch arbor hole fits standard machine spindles for this wheel diameter class. Confirm machine spindle speed does not exceed the 3600 RPM maximum rating before mounting.

Installation Notes

Grinding wheels must be installed, dressed, and operated by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always de-energize and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using a ring test before every installation, and never exceed the rated maximum RPM. Use appropriate flanges, blotters, and guards as specified by the machine manufacturer.