Norton 66252941038 Surface Grinding Wheel 7in 60 Grit

Product Description

The NORTON 66252941038 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rate and form retention throughout its service life. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The 60 grit, J hardness rating places it in the medium range — firm enough to hold geometry on soft carbon steels and tool steels without loading prematurely. Rated to 3,600 RPM, it is suitable for production-level surface and cylindrical grinding applications requiring repeatable finishes.

This wheel is used on surface grinders, cylindrical grinders, and CNC cutting tool machines in both job shop and production environments. The 38A series aluminum oxide formulation is a standard choice for grinding soft carbon steels, tool steels, and super alloys where controlled material removal and wheel longevity are priorities. The white, non-porous wheel construction helps reduce heat buildup at the workpiece surface during extended grinding passes. It is installed and dressed by machinists, tool-and-die makers, and grinding technicians.

Key Features

• Aluminum oxide abrasive — semi-friable grain for consistent cut on carbon steels, tool steels, and super alloys
• Vitrified bond provides rigid structure and precise form retention
• 60 grit medium grade for balanced stock removal and surface finish
• J hardness code — medium wheel hardness suited to softer workpiece materials
• Type 1 straight wheel profile with no recess and no taper
• Rated to 3,600 RPM for surface grinder and cylindrical grinder use

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include soft carbon steels, tool steels, and super alloys per manufacturer specification.

Installation Notes

Grinding wheels must be installed by a qualified machinist or grinding technician following ANSI B11.9 and OSHA 1910.215 standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the machine before changing wheels, and ensure the arbor hole, flanges, and blotters are clean and properly sized. Never exceed the maximum RPM stamped on the wheel.