Norton 66252941943 Surface Grinding Wheel 60 Grit 7 in

Product Description

The NORTON 66252941943 is a Type 1 straight 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, 3/4 inches thick, with a 1-1/4 inches arbor hole. It runs at a maximum of 3,600 RPM and carries a 60 grit, K hardness (medium grade) rating — a combination well suited to controlled material removal on hard and soft steels, cast iron, and aluminum. The vitrified bond provides consistent grain exposure and good wheel breakdown behavior under surface grinding loads. Licensed machinists, tool room technicians, and industrial maintenance trades are the primary installers and operators.

This wheel is suited for surface grinding and cylindrical grinding applications in tool room, production, and maintenance environments. It performs across 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. Compatible equipment includes surface grinders, cylindrical grinders, and CNC cutting tool machines. The porous, gray-colored wheel body supports coolant flow and chip clearance during wet or dry grinding operations.

Key Features

• Aluminum oxide abrasive for versatile use on steels, cast irons, and aluminum
• Vitrified bond delivers consistent grain exposure and stable wheel geometry
• 60 grit, K hardness medium grade balances cut rate and surface finish
• Porous wheel structure supports coolant flow and chip evacuation
• Type 1 straight profile fits standard surface grinder and cylindrical grinder spindles
• Rated to 3,600 RPM maximum operating speed

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. Series designation 32A Type 1 with specification code 32A60-KVBE.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified machine operators or maintenance trades following ANSI B11.9 and OSHA 29 CFR 1910.215 safe guarding requirements. Always inspect the wheel for cracks or chips before mounting and perform a ring test per standard procedure. Power down and lock out the grinder before changing wheels, and verify that spindle RPM does not exceed the 3,600 RPM maximum rating marked on the wheel. Use the correct flange size and paper blotter washers to ensure even clamping pressure.