Norton 66253246800 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 66253246800 is a Type 1 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on metalworking equipment. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel carries a 46-grit coarse grade with an I hardness rating, suited for aggressive material removal while maintaining consistent wheel geometry. It is rated to a maximum of 3,600 RPM. The vitrified bond provides rigidity and porosity for free cutting action. This wheel is installed by machinists and tool-and-die technicians in production and maintenance grinding applications.

This grinding wheel is built for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It performs well on soft carbon steels and tool steels where a coarse, open cut is needed to clear chips and reduce heat buildup. The Gemini Precision Vitrified series is engineered for consistent performance across repetitive grinding cycles in both job shop and production environments.

Key Features

• Type 1 flat wheel profile — no recess, straight face for surface and cylindrical grinding
• Aluminum oxide abrasive with vitrified bond for rigid, porous wheel structure
• 46-grit coarse grade for high material removal rates on steel workpieces
• I hardness rating provides medium wheel hardness for balanced wear and cut rate
• Rated at 3,600 RPM maximum operating speed
• Blue and gray wheel color for Gemini series identification

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels and tool steels. Fits machines with a 1-1/4 inch arbor.

Installation Notes

Grinding wheels must be installed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always perform a ring test before mounting and inspect the wheel for cracks or damage. Machine guarding must be in place and the workpiece must be secured before the wheel reaches operating speed. Never exceed the maximum RPM stamped on the wheel.