Norton 66253364053 Surface Grinding Wheel 14in 60 Grit

Product Description

The NORTON 66253364053 is a Type 1 surface grinding wheel built for precision flat grinding on a range of metallic workpieces. Constructed with aluminum oxide abrasive and a vitrified bond, it delivers consistent stock removal with controlled wear. The wheel measures 14 inches in diameter, 1 inch thick, with a 5-inch arbor hole. It carries a 60 grit rating and K hardness code, placing it in the medium grade range. Rated at a maximum of 1800 RPM, this wheel is sized for production-level surface grinders and is installed by machinists and grinding professionals in tool rooms and manufacturing environments.

This wheel is suited for surface grinding operations on soft carbon steels, tool steels, and super alloys. It is designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. The 38A series aluminum oxide grain is semi-friable, meaning it fractures under load to expose fresh cutting edges, which supports cooler grinding action and longer wheel life on ferrous workpieces. It is a non-tapered, non-recessed Type 1 flat wheel with a white wheel color for easy visual wear inspection.

Key Features

• Type 1 flat wheel profile with no recess and no taper for straightforward surface grinding setups
• 60 grit, K hardness (medium grade) for balanced material removal and surface finish on steel and alloys
• Semi-friable aluminum oxide grain refreshes cutting edges during use, reducing heat buildup
• Vitrified bond provides rigidity and consistent performance across the wheel face
• Maximum operating speed of 1800 RPM — do not exceed this rating
• White wheel color for easy visual inspection of wear and loading

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for material applications including soft carbon steels, tool steels, and super alloys. Arbor hole size is 5 inches; confirm spindle compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or grinding technician following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the machine before mounting or dismounting a grinding wheel. Inspect the wheel for cracks or chips using the ring test prior to mounting, and use proper blotters and flanges as required by the machine manufacturer. Never exceed the maximum operating speed of 1800 RPM marked on the wheel or its packaging.