Norton 66253044094 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253044094 is a Type 1 surface grinding wheel engineered for high-performance material removal on hard and difficult-to-grind metals. Measuring 8 inches in diameter and 1/2 inch thick with a 1-1/4 inch arbor hole, this wheel features a ceramic abrasive grain in a vitrified bond matrix. The 60 grit, K hardness (medium grade) specification delivers consistent stock removal while maintaining wheel form. Rated to 3600 RPM, it is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The porous, semi-friable structure promotes cool cutting and self-sharpening action during aggressive grinding operations.

This wheel is suited for precision surface grinding applications in both production and toolroom environments. It performs on 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Its blue vitrified bond construction makes it a standard choice for shops running surface grinders where consistent finish quality and dimensional accuracy are required. The 5SG Type 1 series designation identifies it as part of a ceramic grain line built for demanding ferrous and exotic metal grinding work.

Key Features

• Ceramic abrasive grain with vitrified bond for aggressive stock removal and long wheel life
• 60 grit, K hardness (medium grade) for balanced cut rate and surface finish
• Semi-friable, porous structure promotes cool cutting and continuous self-sharpening
• Rated at 3600 RPM for surface grinder and CNC tool grinder compatibility
• Type 1 flat wheel profile with no recess, no taper — straight mounting
• Compatible with a wide range of ferrous and exotic materials including titanium and super alloys

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. Part of the NORTON 5SG Type 1 ceramic grinding wheel series.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation using the ring test, and never exceed the maximum RPM stamped on the wheel. Use the correct flanges and blotters as specified by the grinder manufacturer.