Norton 66253364101 Surface Grinding Wheel 14in 60 Grit

Product Description

The NORTON 66253364101 is a Type 1 surface grinding wheel engineered for demanding material removal on hard ferrous metals and specialty alloys. It measures 14 inches in diameter, 1-1/2 inches thick, with a 5-inch arbor hole. The wheel uses a ceramic abrasive grain bonded in a vitrified matrix, rated at J hardness (medium grade) and 60 grit for aggressive stock removal with consistent cut rates. Rated to a maximum of 1800 RPM, it suits production surface grinding and cylindrical grinding applications where heat resistance and grain friability are critical performance factors. Weight is 15 pounds.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is well suited to grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The porous, semi-friable ceramic grain structure promotes cool cutting action, reducing thermal damage risk on heat-sensitive workpieces. It is typically specified by toolroom machinists, grinding operators, and industrial maintenance shops working with high-alloy or hardened materials.

Key Features

• Ceramic abrasive grain with vitrified bond for high stock removal rates and long wheel life
• 60 grit, J hardness (medium grade) for aggressive roughing on hard and difficult-to-grind materials
• Porous, semi-friable structure promotes cool cutting and reduces glazing
• Type 1 straight wheel geometry with no recess, 5-inch arbor hole for broad machine compatibility
• Maximum operating speed of 1800 RPM
• Series designation 5SG Type 1; specification code 5SG60-JVS

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for material applications including 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 qualified machine operators or maintenance personnel familiar with abrasive wheel safety. Always inspect the wheel for cracks or damage using a ring test before mounting, and never exceed the marked maximum RPM of 1800. Ensure the machine spindle speed is confirmed and guarding is in place before operation. Follow ANSI B11.9 and OSHA 1910.215 abrasive wheel machinery standards for mounting, flanging, and guarding requirements.