Norton 66252916225 Surface Grinding Wheel 60 Grit 7in

Product Description

The NORTON 66252916225 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. Built with aluminum oxide abrasive grain in a vitrified bond matrix, this wheel delivers consistent cutting action and thermal stability under both wet and dry grinding conditions. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and is rated to a maximum of 3600 RPM. The 60 grit, medium grade, H hardness specification positions it for general-purpose surface grinding where controlled material removal and a moderate surface finish are required.

This wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both shop and production environments. The 38A series aluminum oxide grain is semi-friable, meaning it fractures to expose fresh cutting edges during use, making it well-matched to soft carbon steels and super alloys where heat buildup must be managed. It supports both wet coolant and dry grinding setups, giving technicians flexibility across different machine configurations.

Key Features

• 60 grit, medium grade aluminum oxide abrasive for general-purpose surface grinding
• H hardness (soft hardness rating) vitrified bond for consistent wheel breakdown and fresh grain exposure
• Semi-friable grain structure minimizes heat buildup on workpiece surface
• Compatible with wet and dry grinding operations
• No recess, no taper — standard Type 1 flat wheel profile
• White wheel color for easy visual identification of aluminum oxide composition

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. Fits machine spindles with a 1-1/4 inch arbor bore.

Installation Notes

Grinding wheel installation and dressing should be performed by qualified personnel familiar with ANSI B11.9 and OSHA 29 CFR 1910.215 grinding safety standards. Always perform a ring test before mounting and verify the machine spindle speed does not exceed the 3600 RPM maximum wheel rating. Mount with appropriate flanges and blotters; never exceed rated speed or force the wheel onto the arbor. Dress the wheel with a suitable dressing tool before first use to true the face and open the abrasive surface.