Norton 66253043715 Surface Grinding Wheel 46 Grit 8 in

Product Description

The NORTON 66253043715 is a Type 1 vitrified surface grinding wheel engineered for precision material removal on ferrous and non-ferrous workpieces. Built on an aluminum oxide abrasive grain with a vitrified bond, this wheel carries a coarse 46 grit rating and J hardness code, placing it in the medium hardness range. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and is rated to a maximum of 3600 RPM. The series designation is 32A46-JVBE. Machinists, tool and die makers, and surface grinder operators install this wheel in production and maintenance grinding applications.

This wheel is suited for use on CNC cutting tool machines, cylindrical grinders, and surface grinders in both shop and production environments. Material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The coarse grit is appropriate for aggressive stock removal rather than finish grinding passes. It is commonly installed in industrial maintenance shops, fabrication facilities, and tool rooms where consistent, repeatable material removal across a range of metals is required.

Key Features

• Aluminum oxide abrasive grain delivers consistent cut on ferrous and non-ferrous metals
• Vitrified bond provides rigidity and precise form-holding during surface grinding
• 46 grit coarse grade for efficient stock removal
• J hardness (medium) balances wheel wear rate with cutting efficiency
• Porous structure promotes coolant flow and chip clearance during grinding
• Type 1 flat wheel geometry with no recess, compatible with standard surface grinder spindle configurations

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Arbor hole size of 1-1/4 inches fits standard surface grinder spindles accepting that bore diameter.

Installation Notes

Installation should be performed by a qualified machinist or grinding machine operator. Before mounting, inspect the wheel for cracks or chips using a ring test per ANSI B7.1 guidelines, and verify the machine spindle speed does not exceed the 3600 RPM maximum rating marked on the wheel. Power down and lock out the grinder before removing the existing wheel and mounting the replacement. Always use proper flange hardware and blotters; do not force the wheel onto the spindle arbor.