Norton 66253262111 Surface Grinding Wheel 80 Grit 12 in

Product Description

The NORTON 66253262111 is a Type 1 surface grinding wheel engineered for precision stock removal on a wide range of ferrous and non-ferrous materials. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cut rate and wheel integrity across extended grinding cycles. The wheel measures 12 inches in diameter, 0.5 inches thick, with a 5-inch arbor hole, and carries an 80-grit, medium-grade specification with a K hardness code. Maximum rated speed is 2,070 RPM. This wheel is suited for use by machinists and grinding professionals working in production and job-shop environments.

The 66253262111 is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It performs on a broad spectrum of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous, vitrified bond structure promotes coolant penetration and chip clearance, making it effective for both wet and dry grinding applications in shop environments where material finish and dimensional accuracy matter.

Key Features

• Aluminum oxide abrasive for consistent performance on steel, stainless, and cast iron
• Vitrified bond with porous structure for improved coolant flow and chip clearance
• 80 grit, K hardness (medium grade) for balanced stock removal and surface finish
• Type 1 flat wheel with no recess and no taper for straightforward mounting
• Rated to 2,070 RPM maximum operating speed
• Series 32A specification: 32A80-KVBE

Compatibility

Rated 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

Installation should be performed by a qualified machinist or grinding equipment operator following ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or damage before mounting and perform a ring test. Ensure the machine spindle speed does not exceed the wheel maximum RPM rating. Power down and lock out the grinder before changing wheels, and run the newly mounted wheel at operating speed for at least one minute with the guard in place before bringing it into contact with workpiece material.