Norton 66253262580 Surface Grinding Wheel 60 Grit 12 in

Product Description

The NORTON 66253262580 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. It measures 12 inches in diameter, 1 inch thick, and accepts a 3-inch arbor hole. The wheel is constructed from aluminum oxide abrasive bonded in a vitrified matrix, producing a rigid, porous structure that clears swarf efficiently and runs cool under load. At 60 grit with an H hardness code and medium grade classification, it delivers an aggressive yet controlled cut suited to surface and cylindrical grinding applications. The wheel is rated to a maximum of 2,070 RPM. Specification code 32A60-HVBE identifies the exact wheel formulation for reorder verification.

This wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both job-shop and production environments. It is formulated for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous, vitrified bond structure makes it a strong choice for wet or dry precision grinding passes where consistent finish and dimensional accuracy are required. Grinding wheel technicians and tool-room machinists are the primary installers and operators.

Key Features

• Aluminum oxide abrasive with vitrified bond for rigid, free-cutting action
• Porous wheel structure promotes coolant flow and reduces heat buildup
• 60 grit, H hardness (medium grade) for aggressive material removal with controllable finish
• Type 1 flat wheel profile with no recess — standard straight configuration
• Rated to 2,070 RPM maximum operating speed
• Compatible with a wide material range including stainless, carbon steels, tool steels, aluminum, and cast and ductile iron

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 mounting and dressing should be performed by a qualified operator or machinist familiar with ANSI B11.9 and OSHA 1910.215 requirements for abrasive wheel machinery. Always power down and de-energize the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation using the ring test; do not mount a wheel that does not emit a clear tone. Never exceed the maximum rated RPM of 2,070 — verify the machine spindle speed before operation.