Norton 66253246802 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 66253246802 is a Type 1 vitrified surface grinding wheel designed for precision material removal on soft carbon steels and tool steels. It measures 7 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole for direct mounting on standard surface and cylindrical grinders. The aluminum oxide abrasive is bonded with a vitrified process and rated at a coarse 46 grit with a J hardness code, placing it in the medium-hardness range. This combination delivers aggressive stock removal while maintaining consistent wheel integrity throughout the grind cycle. Rated to 3600 RPM maximum, this wheel is part of the Gemini Precision Vitrified Grinding Wheels series.

This wheel is suited for surface grinding applications in tool rooms, production shops, and maintenance environments. It is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The coarse 46-grit specification makes it a practical choice for initial stock removal passes on soft carbon steels and tool steels where a fine finish is not the priority. Machinists and tool-and-die technicians are the primary installers and operators of this type of wheel.

Key Features

• 46 grit aluminum oxide abrasive for coarse, aggressive stock removal
• Vitrified bond construction provides rigidity and consistent cut performance
• J hardness code, medium-hardness rating, supports controlled wear in steel grinding applications
• Porous wheel structure promotes coolant flow and chip clearance
• Rated to 3600 RPM maximum operating speed
• Type 1 flat wheel profile with no recess, compatible with standard surface grinder chucks and flanges

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels and tool steels. Confirm arbor size, flange compatibility, and maximum RPM rating of the host machine before mounting.

Installation Notes

Grinding wheel mounting and dressing must be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. 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 exceed the 3600 RPM maximum speed rating printed on the wheel or stated by the manufacturer.