Norton 66253043869 Surface Grinding Wheel 80 Grit 8 in

Product Description

The NORTON 66253043869 is a Type 1 surface grinding wheel engineered for precision stock removal on surface grinders, cylindrical grinders, and CNC cutting tool machines. Built on an aluminum oxide abrasive with a vitrified bond, this wheel delivers consistent cut rates and long service life across a range of metalworking applications. The wheel measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. Running at a maximum rated speed of 3600 RPM, it carries a K hardness code and a medium grade classification. Licensed machinists and tool room technicians are the primary installers and users of this wheel.

This wheel is suited for grinding soft carbon steels, tool steels, and super alloys in both production and toolroom environments. It performs on surface grinders where flat, accurate finishes are required, as well as on cylindrical grinders for OD grinding operations. The 80 grit designation makes it appropriate for moderate material removal where surface finish quality still matters. The vitrified bond structure self-dresses consistently, which helps maintain cut efficiency throughout the wheel life.

Key Features

• Aluminum oxide abrasive rated for soft carbon steels, tool steels, and super alloys
• Vitrified bond for consistent self-dressing and stable cutting action
• 80 grit, medium grade for balanced stock removal and surface finish
• K hardness code provides firm wheel structure suited to moderate grinding pressures
• Non-porous, non-tapered, no-recess Type 1 straight wheel profile
• Semi-friable abrasive grain for controlled breakdown under load

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding machine operator following the machine manufacturer guidelines and ANSI B11.9 safety standards. Always power down and lock out the machine before changing wheels. Inspect the wheel for cracks or chips before mounting, and never exceed the rated maximum speed of 3600 RPM. Flanges, blotters, and arbor hardware must be clean, correctly sized, and free of damage prior to installation.