Norton 66252916211 Surface Grinding Wheel 46 Grit 7in

Product Description

The NORTON 66252916211 is a Type 1 surface grinding wheel built for precision stock removal on hard ferrous metals and specialty alloys. It measures 7 inches in diameter, 0.5 inches thick, with a 1.25-inch arbor hole. The wheel uses a ceramic abrasive grain bonded with a vitrified bond, which resists heat buildup and maintains a consistent cut rate throughout the wheel's life. Rated at 3600 RPM maximum, it is suited for both wet and dry operation. The coarse 46 grit and H hardness code make it effective for aggressive material removal on surface grinders and cylindrical grinders.

This wheel is designed for use on CNC cutting tool machines, cylindrical grinders, and surface grinders in industrial and job-shop environments. It performs on a wide range of difficult materials including 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The 3SG Type 1 series is a standard choice for machine shops and tool rooms requiring reliable, repeatable cuts on high-hardness workpieces. It supports both wet coolant and dry grinding setups.

Key Features

• Ceramic abrasive grain with vitrified bond for consistent cut rate and heat resistance
• 46 grit coarse grade for aggressive material removal
• H hardness code, soft hardness rating for efficient self-dressing action
• 3600 RPM maximum speed rating
• Wet and dry operation compatible
• Semi-friable grain structure for balanced sharpness and durability

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a Type 1 wheel with a 1.25-inch arbor hole. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron workpieces.

Installation Notes

Installation should be performed by a qualified machinist or grinding technician following ANSI B7.1 safe use standards for abrasive wheels. Before mounting, inspect the wheel for cracks or chips using the ring test. Power down and lock out the grinder before changing wheels. Never exceed the maximum rated RPM of 3600; always confirm the machine spindle speed before operation.