Norton 66243584549 Surface Grinding Wheel 120 Grit

Product Description

The NORTON 66243584549 is a Type 1 straight surface grinding wheel designed for precision material removal on surface grinders. Built with aluminum oxide abrasive, this wheel is suited for grinding ferrous metals, tool steel, and similar hard materials where consistent stock removal and surface finish are required. It measures 11.811 inches in diameter and 0.866 inches thick, with a 3-inch arbor hole for secure mounting on compatible spindle flanges. At 120 grit with an E hardness grade, the wheel delivers fine finishing passes while maintaining wheel integrity under load. Weighing 5.226 pounds, it is sized for industrial bench and surface grinding applications.

This grinding wheel is intended for use on horizontal spindle surface grinders in machine shops, tool rooms, and production grinding environments. The 120 grit and fine grade make it appropriate for finish grinding operations where tight tolerances and smooth surface profiles are the goal. Licensed machinists, tool and die makers, and industrial maintenance technicians are the primary users. The non-porous, non-tapered Type 1 wheel profile is a standard configuration across a wide range of surface grinder models.

Key Features

• 120 grit aluminum oxide abrasive for fine surface finishing on ferrous and tool steel workpieces
• Type 1 straight wheel profile — standard configuration for horizontal spindle surface grinders
• E hardness code — firm bond grade suited to finish grinding passes
• Non-porous construction for consistent cutting action and predictable wheel wear
• 3-inch arbor hole fits standard industrial surface grinder spindle flanges
• 11.811-inch diameter provides broad contact area for efficient flat surface grinding

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for horizontal spindle surface grinders accepting a Type 1 wheel with an 11.811-inch diameter and 3-inch bore.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or maintenance technician following ANSI B11.9 and applicable OSHA standards for abrasive wheel machinery. Always de-energize and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the maximum RPM rating marked on the wheel. Use proper blotter washers and flanges and allow the wheel to run at operating speed with the guard in place before engaging the workpiece.