Norton 66253246815 Surface Grinding Wheel 60 Grit 7in

Product Description

The NORTON 66253246815 is a Type 1 vitrified aluminum oxide surface grinding wheel rated for 3600 RPM. At 7 inches in diameter, 1/2 inch thick, and bored to a 1-1/4 inch hole, this wheel fits standard surface grinder spindles. The 60-grit, H-hardness medium-grade bond delivers controlled stock removal on a broad range of ferrous and non-ferrous workpiece materials. The vitrified bond provides consistent structure and free-cutting action, making it well-suited for precision surface grinding applications in tool rooms and production environments. Licensed HVAC technicians, machinists, and maintenance professionals working with hard alloys or cast iron specify this wheel for its predictable performance and dimensional stability under load.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It handles a wide range of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The non-porous, non-recessed, non-tapered Type 1 flat wheel profile is the standard configuration for surface grinding applications in both job shop and production settings. It is appropriate for both light finishing passes and moderate material removal on flat workpiece surfaces.

Key Features

• Type 1 flat wheel profile — no recess, no taper, direct spindle mount
• Aluminum oxide abrasive with vitrified bond for consistent, free-cutting action
• 60 grit, H hardness (medium grade) for balanced stock removal and surface finish
• Rated to 3600 RPM maximum operating speed
• Compatible with a broad range of ferrous and non-ferrous materials including stainless, tool steels, and cast iron
• Series 32A Type 1 specification code: 60H8V32A

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel installation and dressing should be performed by qualified personnel following applicable ANSI B11 and OSHA 29 CFR 1910.215 machine guarding standards. Power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation — never mount a damaged wheel. Ring-test the wheel before use, ensure flanges and blotters are correctly seated, and run the wheel at operating speed for at least one minute with guards in place before bringing it into contact with the workpiece.