Norton 66252803344 Surface Grinding Wheel 6in 60 Grit

Product Description

The NORTON 66252803344 is a Type 1 surface grinding wheel engineered for aggressive stock removal on hard ferrous metals and specialty alloys. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent cut rates and long service life under the thermal and mechanical demands of surface grinding. At 6 inches in diameter and 1/2 inch thick with a 1-1/4 inch arbor hole, it mounts directly to standard surface grinder spindles. The 60-grit, K-hardness (medium) specification suits general-purpose rough-to-finish grinding where controlled material removal and wheel form retention are priorities. Licensed grinding technicians and toolroom machinists are the primary installers and users of this wheel.

This wheel is rated for use on 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. It is designed for operation on surface grinders, cylindrical grinders, and CNC cutting tool machines. The porous, semi-friable ceramic structure keeps the wheel face open during heavy cuts, reducing heat buildup on sensitive workpiece materials such as titanium and tool steels. It carries the 5SG series designation and is suited to both production and toolroom environments where wheel life and cut consistency matter.

Key Features

• Ceramic abrasive grain with vitrified bond for high cut rates and long wheel life
• Type 1 straight wheel profile with no recess — fits standard surface and cylindrical grinder spindles
• 60 grit, K hardness (medium grade) for aggressive stock removal with controlled finish
• Porous, semi-friable structure reduces grinding heat on hard alloys and stainless steels
• Rated for 400 series stainless, tool steels, titanium, super alloys, and cast and ductile iron
• Maximum operating speed of 4,140 RPM

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a Type 1 straight wheel with a 1-1/4 inch arbor hole. Material applications include 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding technician following ANSI B11.9 and OSHA 1910.215 requirements. 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. Never exceed the maximum rated speed of 4,140 RPM; verify the machine spindle speed before operation.