Norton 66253262711 Surface Grinding Wheel 60 Grit 12 in

Product Description

The NORTON 66253262711 is a Type 1 surface grinding wheel engineered for precision material removal on soft carbon steels, tool steels, and super alloys. Built around a white aluminum oxide abrasive grain with a vitrified bond, it delivers consistent stock removal and finish quality on production surface grinders and cylindrical grinders. The wheel measures 12 inches in diameter, 1 inch thick, with a 3-inch arbor hole. At 60 grit and an H hardness code (medium grade, semi-friable), it balances cut rate with controlled wear, making it a reliable choice for licensed toolroom machinists and grinding specialists working in job shops or industrial maintenance environments.

This wheel is suited for surface grinding operations on a range of ferrous workpiece materials including soft carbon steels, tool steels, and super alloys. It is compatible with CNC cutting tool machines, cylindrical grinders, and surface grinders. The non-tapered, non-recessed Type 1 flat wheel profile fits standard spindle setups common in both manual and CNC grinding cells. The 38A series designation identifies it as a Norton aluminum oxide product line recognized across industrial toolroom and production grinding applications.

Key Features

• White aluminum oxide abrasive for consistent cut on steels and super alloys
• Vitrified bond provides rigid grain support and open structure for efficient chip clearance
• 60 grit, H hardness (medium grade) balances stock removal rate with wheel life
• Semi-friable grain fractures to expose fresh cutting edges during use
• Non-porous, non-tapered, no-recess Type 1 flat wheel profile for broad spindle compatibility
• Rated to 2070 RPM maximum operating speed

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a Type 1 flat wheel with a 3-inch arbor hole and 12-inch diameter. Suitable for grinding soft carbon steels, tool steels, and super alloys per the 38A Type 1 series application guidelines.

Installation Notes

Grinding wheel installation and dressing must be performed by a qualified machinist or grinding specialist following applicable ANSI B11.22 safety standards. Always power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the 2070 RPM maximum speed rating. Use flanges and blotters appropriate for the wheel size and arbor as specified by the machine manufacturer.