Norton 66253160401 Surface Grinding Wheel 10in 46 Grit

Product Description

The NORTON 66253160401 is a Type 1 surface grinding wheel designed for demanding material removal on ferrous metals and high-alloy materials. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent stock removal and long wheel life on hard-to-grind materials. It measures 10 inches in diameter, 1 inch thick, with a 3-inch arbor hole, and carries a coarse 46 grit rating with a J hardness code. The semi-friable ceramic grain continuously self-sharpens under load, reducing heat buildup and glazing. Licensed HVAC techs and machinists working with tool steels or exotic alloys will find this wheel well-suited to production surface and cylindrical grinding applications.

This grinding wheel is intended for use on CNC cutting tool machines, cylindrical grinders, and surface grinders. It is rated for material applications including 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The blue vitrified wheel is porous in structure, which supports coolant flow and chip clearance during wet or dry grinding operations. It is a single-piece, no-recess, straight wheel with no taper, making it a direct fit for standard surface grinder arbor setups.

Key Features

• Ceramic abrasive grain with semi-friable structure for continuous self-sharpening
• Vitrified bond provides rigidity and dimensional stability at operating speed
• Coarse 46 grit, J hardness (medium wheel hardness) for aggressive stock removal
• Porous wheel structure supports coolant flow and chip evacuation
• Rated for a wide range of ferrous and exotic alloy materials including titanium and super alloys
• Straight Type 1 profile, no recess, no taper — compatible with standard arbor setups

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Series designation is 5SG Type 1, specification 5SG46-JVS.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or grinding specialist following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips using a ring test before mounting, and confirm the machine spindle speed does not exceed the rated maximum RPM. Power down and lock out the grinder before changing wheels. Never force a wheel onto an arbor or alter the bore diameter.