Norton 66252940197 Surface Grinding Wheel 60 Grit

Product Description

The NORTON 66252940197 is a Type 1 surface grinding wheel engineered for aggressive stock removal and precision finishing on hard ferrous metals and specialty alloys. Built with a ceramic abrasive grain and vitrified bond, this wheel carries a 60-grit, medium-grade (J hardness) specification suited for controlled, cool cutting action. It measures 7 inches in diameter, 1/2 inch thick, and accepts a 1-1/4 inch arbor. The porous, semi-friable ceramic grain structure continuously self-sharpens during use, maintaining cut rate and surface finish across extended grinding cycles. This wheel is installed and operated by skilled machinists, tool-and-die technicians, and precision grinding professionals.

The 66252940197 is designed for surface grinding operations on 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Compatible equipment includes surface grinders, cylindrical grinders, and CNC cutting tool machines. Its blue vitrified wheel construction and porous structure make it well matched to applications where heat buildup must be minimized and consistent stock removal is required across production or maintenance grinding tasks.

Key Features

• Ceramic abrasive grain for aggressive cutting with reduced heat generation
• Vitrified bond with porous structure promotes coolant flow and chip clearance
• 60 grit, J hardness (medium grade) balances material removal rate with surface finish quality
• Type 1 straight wheel profile fits standard surface and cylindrical grinder spindles
• Semi-friable grain continuously fractures to expose fresh cutting edges
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed 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. Series designation 5SG Type 1 per manufacturer specification 5SG60-JVS.

Installation Notes

Installation should be performed by a qualified machinist or grinding technician. Before mounting, inspect the wheel for cracks or chips using the ring test as specified by ANSI B11.9 grinding safety standards. Power down and lock out the grinder before changing wheels, and confirm the machine spindle speed does not exceed the 3600 RPM maximum rated speed of this wheel. Never exceed the rated RPM, overtighten flange hardware, or use damaged blotters or flanges.