Norton 66253302160 Surface Grinding Wheel 60 Grit 14 in

Product Description

The NORTON 66253302160 is a Type 1 surface grinding wheel engineered for demanding precision grinding applications. Built on a vitrified bond with a ceramic (seeded gel) abrasive grain, this wheel operates at a maximum of 1800 RPM and delivers consistent stock removal on hard, difficult-to-grind materials. At 14 inches in diameter and 1.5 inches thick, with a 5-inch arbor hole, it is sized for industrial surface grinders and cylindrical grinders. The 60-grit, K-hardness (medium) structure provides a balance of aggressive cut rate and controlled surface finish. Licensed grinding professionals and tool room machinists are the primary installers of this wheel.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in production and tool room environments. It is well suited for material applications including 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The porous, semi-friable grain structure allows the wheel to remain free-cutting through extended runs on these tough materials, making it a practical choice for shops handling mixed ferrous and specialty alloy work.

Key Features

• Ceramic abrasive grain — semi-friable, self-sharpening for consistent cut on hard alloys
• Vitrified bond with porous structure promotes coolant flow and reduces heat buildup
• 60 grit, K hardness (medium grade) balances material removal rate with surface finish quality
• Type 1 flat wheel profile — no recess, no taper — fits standard surface and cylindrical grinder flanges
• Rated to 1800 RPM maximum operating speed
• 5SG series specification (5SG60-KVS) for traceability and replacement matching

Compatibility

Specified for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Arbor hole diameter is 5 inches; confirm spindle and flange dimensions before mounting.

Installation Notes

Grinding wheel mounting must be performed by a qualified operator following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always perform a ring test before mounting and inspect the wheel for cracks or damage. Never exceed the 1800 RPM maximum rated speed; verify the machine spindle speed before operation. Use properly sized blotter pads and flanges, and allow the wheel to run at operating speed for at least one minute behind a guard before presenting workpiece contact.