Norton 66253043740 Surface Grinding Wheel 100 Grit

Product Description

The NORTON 66253043740 is a Type 1 surface grinding wheel engineered for precision material removal on ferrous and non-ferrous metals. It measures 8 inches in diameter and 1/2 inch thick, with a 1-1/4 inch arbor hole. The abrasive matrix is aluminum oxide bonded with a vitrified bond, rated at 100 grit in a Fine grade with a Medium hardness rating (Hardness Code I). Specification designation is 32A100-IVBE. Rated to a maximum of 3600 RPM, this wheel is designed for use on surface grinders and cylindrical grinders in professional shop environments. Machinists, toolroom technicians, and grinding machine operators are the primary installers and users.

This wheel is suited for both production and toolroom applications where a fine surface finish is required on a variety of workpiece materials. Typical use cases include surface grinding on CNC cutting tool machines, cylindrical grinders, and dedicated surface grinders. The aluminum oxide abrasive and vitrified bond make it effective on a broad range of metallic materials including stainless steel, carbon steel, tool steel, aluminum, and cast iron variants. It is non-tapered and features no recess, making it a straightforward straight-wheel configuration.

Key Features

• Aluminum oxide abrasive for consistent cut on ferrous and non-ferrous metals
• Vitrified bond for rigidity, porosity, and cool cutting action
• 100 grit Fine grade delivers smooth surface finishes
• Medium hardness (Code I) balances wheel life and stock removal
• Porous structure supports chip clearance and reduced heat buildup
• Type 1 straight-wheel profile with no taper and no recess for straightforward mounting

Compatibility

Compatible with CNC cutting tool machines, cylindrical grinders, and surface grinders. Suitable for use on 400 Series Stainless, Hard Carbon Steels, Soft Carbon Steels, Tool Steels, Aluminum, Cast Iron, Ductile Iron, and Gray Iron workpieces. Requires a machine spindle that accepts a 1-1/4 inch arbor hole and is rated for at least 3600 RPM.

Installation Notes

Grinding wheel installation and dressing must be performed by a qualified machinist or toolroom technician 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 damage before mounting, and perform a ring test per ANSI guidelines. Never exceed the 3600 RPM maximum speed rating marked on the wheel or packaging.