Norton 69936662909 Surface Grinding Wheel 46 Grit 7in

Product Description

The NORTON 69936662909 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and high-performance alloys. Built with aluminum oxide abrasive and a vitrified bond, this wheel carries a coarse 46 grit rating and an H hardness code, placing it in the soft-to-medium hardness range for efficient, cool cutting. It measures 7 inches in diameter, 1/2 inch thick, and features a 1-1/4 inch arbor hole. The vitrified bond structure is porous, promoting chip clearance and reduced heat buildup during wet or dry operation. This wheel is installed and dressed by qualified grinding machine operators and surface grinder technicians.

This grinding wheel is suited for surface grinding, cylindrical grinding, and CNC cutting tool machine applications. It is rated for soft carbon steels, tool steels, and super alloys, making it a practical choice for tool rooms, production grinding cells, and maintenance shops. The 25A series designation indicates a pink aluminum oxide grain that is semi-friable, allowing the wheel to self-sharpen as it wears. It supports both wet and dry grinding operations, giving operators flexibility across different machine setups and coolant configurations.

Key Features

• Aluminum oxide abrasive grain, semi-friable, for consistent cut rate on steels and super alloys
• Vitrified bond with porous structure promotes chip clearance and reduces heat at the workpiece
• 46 grit coarse grade for aggressive stock removal
• H hardness code for efficient grinding on softer workpiece materials
• Rated for wet and dry operation
• No recess, no taper — standard Type 1 flat wheel profile

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. Verify spindle speed rating and arbor size before mounting.

Installation Notes

This wheel must be mounted and operated by qualified personnel following ANSI B7.1 safety standards for abrasive wheels. Always power down and lock out the grinder before mounting or removing the wheel. Perform a ring test before installation to check for cracks, and never exceed the rated maximum speed of 3600 RPM. Use the correct flange and blotter assembly for the arbor size, and allow the wheel to run at operating speed in a guarded position before bringing it to the workpiece.