Norton 66252940284 Surface Grinding Wheel 80 Grit 7 in

Product Description

The NORTON 66252940284 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel measures 7 inches in diameter, 3/8 inches thick, with a 1-1/4 inch arbor hole. The 80 grit, medium-grade (K hardness) construction delivers a balance of cut rate and surface finish suitable for production grinding applications. Rated at a maximum of 3600 RPM, it is installed and operated by machinists and tool room technicians on surface grinders and cylindrical grinding equipment.

This wheel is suited for use on CNC cutting tool machines, cylindrical grinders, and surface grinders in both job shop and production environments. Identified by the specification code 32A80-KVBE, it is part of the NORTON 32A Type 1 series. Material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous structure supports coolant flow and chip clearance during wet or dry grinding operations.

Key Features

• Aluminum oxide abrasive for versatile ferrous and non-ferrous metal grinding
• Vitrified bond provides rigidity and consistent form holding during surface grinding
• 80 grit medium grade (K hardness) balances aggressive stock removal with acceptable surface finish
• Porous wheel structure improves coolant penetration and reduces heat buildup
• Type 1 straight wheel profile fits standard surface grinder spindle configurations
• Specification code 32A80-KVBE for direct cross-reference and reorder accuracy

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders. Compatible material applications include 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Installation should be performed by a qualified machinist following ANSI B11 and machine manufacturer safety guidelines. Before mounting, perform a ring test to check for cracks, and confirm the machine spindle speed does not exceed the 3600 RPM maximum rating of this wheel. Power down and lock out the grinder before changing wheels. Never force the wheel onto the arbor or over-tighten flanges, as this can cause stress fractures.