Norton 66253044089 Surface Grinding Wheel 46 Grit 8in

Product Description

The NORTON 66253044089 is a Type 1 surface grinding wheel engineered for aggressive material removal on hard ferrous metals and specialty alloys. Built with a ceramic abrasive grain and a vitrified bond, it delivers consistent cut rates and thermal resistance across extended grinding cycles. The wheel measures 8 inches in diameter, 0.5 inches thick, with a 1.25-inch arbor hole, and carries a coarse 46 grit rating with an I hardness code. Rated to 3,105 RPM, it is sized for bench-top and pedestal surface grinders used in tool rooms, job shops, and maintenance environments. The porous, semi-friable grain structure promotes cool cutting and self-sharpening action under load.

This wheel is suited for surface grinding and cylindrical grinding applications on hard-to-grind materials including 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. It is designed for use on CNC cutting tool machines, cylindrical grinders, and surface grinders. The coarse grit and ceramic composition make it a practical choice for stock removal passes where heat buildup and wheel loading are common concerns with conventional abrasive wheels.

Key Features

• Ceramic abrasive grain with vitrified bond for high-strength, thermally stable construction
• Coarse 46 grit and I hardness code suit aggressive stock removal on hard alloys
• Porous, semi-friable structure promotes self-sharpening and reduces heat buildup
• Type 1 flat wheel profile with no recess fits standard surface and cylindrical grinder spindles
• Rated to 3,105 RPM for safe operation on compatible machines
• Series designation 5SG46-IVS identifies exact specification for reorder and quality tracking

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders requiring a Type 1 flat wheel with a 1.25-inch arbor hole. Confirmed 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 general industry standards for abrasive wheel machinery. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test per manufacturer guidance. Never exceed the wheel's maximum rated RPM, and ensure the machine spindle speed is verified before operation.