Norton 66253044159 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253044159 is a Type 1 surface grinding wheel engineered for precision material removal on ferrous and non-ferrous metals. Built with an aluminum oxide abrasive and a vitrified bond, this wheel measures 8 inches in diameter, 3/4 inches thick, with a 1-1/4 inch arbor hole. The 46 grit, H hardness (coarse grade) construction delivers aggressive stock removal while maintaining consistent wheel shape under load. It is rated to a maximum of 3105 RPM. The vitrified bond offers rigidity and open porosity, which helps with chip clearance during heavy-duty surface grinding operations. Licensed machinists and tool grinders are the primary installers and operators of this wheel.

This grinding wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both job shop and production environments. It performs across a wide range of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Its coarse grit makes it well-suited for high-stock-removal passes rather than finish grinding. The series designation is 32A Type 1, with a full specification code of 32A46-HVBE.

Key Features

• Aluminum oxide abrasive for broad ferrous and non-ferrous material compatibility
• Vitrified bond with porous structure promotes chip clearance and cool cutting action
• 46 grit, H hardness coarse grade for aggressive stock removal
• Type 1 flat wheel profile with no recess, compatible with standard surface and cylindrical grinder arbors
• Maximum rated speed of 3105 RPM
• Series 32A specification code: 32A46-HVBE

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.

Installation Notes

Mounting and dressing of grinding wheels must be performed by qualified personnel in accordance with ANSI B11.9 and the wheel manufacturer's posted maximum RPM. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before each use using the ring test, and never exceed the rated maximum speed of 3105 RPM. A proper wheel guard must be in place and secured before operating the machine.