Norton 66243529960 Surface Grinding Wheel 60 Grit 4 in

Product Description

The NORTON 66243529960 is a Type 1 surface grinding wheel designed for precision stock removal and finishing on a wide range of hard and non-ferrous materials. Built on a vitrified bond with silicon carbide abrasive, this 4-inch diameter, 1/2-inch thick wheel runs at a rated maximum of 8120 RPM. The 60-grit, medium-grade construction delivers aggressive cutting action while maintaining consistent wheel integrity during extended machine cycles. At 0.45 pounds, it is compact enough for ID grinder and surface grinder spindles used in tool rooms, machine shops, and maintenance environments. The 37C series designation indicates a silicon carbide formulation suited for materials that load conventional aluminum oxide wheels.

This wheel is rated for use on 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone. It is intended for installation on CNC cutting tool machines, cylindrical grinders, ID grinders, and surface grinders. The 1/2-inch arbor hole fits standard spindle configurations common to bench-mounted and machine-mounted grinders in light industrial and trade shop settings. Machinists, tool and die technicians, and maintenance mechanics are the primary installers.

Key Features

• Silicon carbide abrasive, 37C series — optimized for non-ferrous metals, stainless, and masonry
• Vitrified bond provides dimensional stability and consistent cut rate
• 60-grit medium grade for efficient material removal without excessive surface heat
• Type 1 flat wheel profile, no recess, non-porous, non-tapered construction
• Rated to 8120 RPM for safe operation on standard grinder spindles
• Compact 4-inch diameter fits ID grinders and surface grinders with limited clearance

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, ID grinders, and surface grinders equipped with a 1/2-inch arbor. Suitable for grinding 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or maintenance technician familiar with ANSI B11 and OSHA 29 CFR 1910.215 abrasive wheel safety standards. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation — never mount a damaged wheel. Verify the machine spindle speed does not exceed the 8120 RPM maximum rating marked on the wheel.