Norton 66253263166 Surface Grinding Wheel 12in 46 Grit

Product Description

The NORTON 66253263166 is a Type 5 vitrified surface grinding wheel engineered for material removal on ferrous and non-ferrous metals. Measuring 12 inches in diameter and 1.5 inches thick with a 5-inch arbor hole, it runs at a maximum of 2070 RPM. The 32A aluminum oxide abrasive grain at 46 grit delivers coarse, fast stock removal, while the vitrified bond provides rigidity and porosity for efficient chip clearance. At 10.91 pounds, it is suited for stationary surface and cylindrical grinder setups where consistent cut rate and wheel life matter.

This wheel is rated for use on a broad range of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is designed for use on surface grinders and cylindrical grinders in industrial, maintenance, and tool-room environments. The one-side recessed profile with a 7.5-inch recess diameter and 0.5-inch recess depth allows proper clearance for flanges on compatible spindle configurations, making it a practical choice for production and repair grinding operations.

Key Features

• 32A aluminum oxide abrasive grain — coarse 46 grit for high material removal rate
• Vitrified bond construction with porous structure for efficient coolant flow and chip evacuation
• Type 5 one-side recessed wheel profile with 7.5-inch recess diameter and 0.5-inch recess depth
• I hardness code (medium) balances wheel life against cut rate on a wide range of metals
• Rated to 2070 RPM maximum operating speed
• Compatible with both surface grinders and cylindrical grinders

Compatibility

Rated for use with surface grinders and cylindrical grinders. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Specification code 32A46-IVBE.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machine operator or maintenance technician familiar with ANSI B11 and OSHA 29 CFR 1910.215 abrasive wheel safety requirements. Always power down and lockout the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before each use and perform a ring test per ANSI standards. Never exceed the rated maximum RPM of 2070.