Norton 69936662916 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 69936662916 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Built around an aluminum oxide abrasive grain with a vitrified bond, this wheel delivers consistent, controlled cutting action across a broad range of surface grinding applications. At 46 grit and J hardness, it falls in the coarse-grade range, making it well suited for rapid material removal while maintaining surface integrity. The wheel is rated to 3,600 RPM and carries a semi-friable grain structure that self-sharpens under load, reducing glazing and extending wheel life between dresses.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both wet and dry operating conditions. Its porous, vitrified bond structure promotes efficient coolant flow when used wet, helping to control heat at the workpiece. Typical applications include grinding soft carbon steels, tool steels, and super alloys in production and toolroom environments. The 25A46-JVBE specification identifies this as a Norton 25A series wheel, a standard in professional grinding operations.

Key Features

• Aluminum oxide abrasive grain with semi-friable structure for consistent self-sharpening
• Vitrified bond with porous construction supports both wet and dry grinding
• Coarse 46 grit and J hardness rating suited for aggressive stock removal
• Type 1 straight wheel geometry with no recess and no taper
• Rated to 3,600 RPM for compatibility with standard surface and cylindrical grinders
• Suitable for soft carbon steels, tool steels, and super alloys

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. Designed for use on soft carbon steels, tool steels, and super alloys. Fits spindles requiring a 1-1/4 inch arbor hole.

Installation Notes

Grinding wheel installation must be performed by a qualified operator following ANSI B11.9 and applicable OSHA standards for abrasive wheel machinery. Always power down and lock out the grinder before mounting or removing a wheel. Ring-test the wheel before installation and inspect for cracks or chips. Never exceed the rated maximum RPM of 3,600, and ensure flanges and blotters are correctly sized and seated before starting the machine.