Norton 66253263120 Surface Grinding Wheel 46 Grit

Product Description

The NORTON 66253263120 is a Type 1 surface grinding wheel designed for heavy material removal on ferrous and non-ferrous metals. It measures 12 inches in diameter, 1-1/2 inches thick, with a 5-inch arbor hole. The wheel uses an aluminum oxide abrasive bonded with a vitrified bond, carrying a 46 grit coarse grade and J hardness code. At a maximum operating speed of 2,070 RPM, it delivers consistent stock removal in surface grinding, cylindrical grinding, and CNC tooling applications. Weighing 11.96 pounds, it is built for production shop environments where controlled, repeatable grinding is required.

This wheel is suited for both ferrous and non-ferrous workpiece materials in industrial production and toolroom settings. Compatible material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. The vitrified bond provides open, porous structure that resists loading and maintains free cutting action across these material types.

Key Features

• 46 grit coarse aluminum oxide abrasive for aggressive stock removal
• Vitrified bond with porous structure resists wheel loading
• J hardness (medium) balances wheel life with cutting efficiency
• Type 1 straight wheel profile with no recess, no taper
• Rated to 2,070 RPM maximum operating speed
• Series specification 32A46-JVBE for precise reorder identification

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron as stated by the manufacturer.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding technician. Always power down and lock out the grinder before mounting or changing wheels. Verify that the machine spindle speed does not exceed the 2,070 RPM maximum rated speed marked on the wheel before operating. Inspect the wheel for cracks or chips before each use and follow ANSI B7.1 safety standards for proper mounting, flanges, and blotter use.