Norton 66253043877 Surface Grinding Wheel 8in 100 Grit

Product Description

The NORTON 66253043877 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and high-performance alloys. Constructed from aluminum oxide abrasive in a vitrified bond matrix, this wheel delivers consistent cut rates and dimensional stability under production grinding conditions. It measures 8 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole. The 100-grit, K-hardness (Medium) specification suits fine-grade finishing work, making it a reliable choice for licensed machinists and tool-and-die professionals operating surface grinders and cylindrical grinders.

This wheel is rated for use on soft carbon steels, tool steels, and super alloys in both production and maintenance grinding environments. Its semi-friable aluminum oxide grain self-sharpens as it wears, maintaining cut efficiency without excessive loading. Typical applications include flat surface grinding, tool reconditioning, and precision profile work on CNC cutting tool machines, cylindrical grinders, and surface grinders. The white wheel color helps operators monitor glazing and loading during use.

Key Features

• Aluminum oxide abrasive with semi-friable grain structure for consistent self-sharpening action
• Vitrified bond provides rigidity and thermal stability during wet or dry grinding
• 100 grit, K hardness (Medium) for fine-grade stock removal on precision surfaces
• Non-porous, non-tapered, no-recess Type 1 flat wheel configuration
• Maximum operating speed rated at 3600 RPM
• Series specification 38A100-KVBE for direct cross-reference ordering

Compatibility

Suited for use with CNC cutting tool machines, cylindrical grinders, and surface grinders. Recommended for grinding soft carbon steels, tool steels, and super alloys. Arbor hole size of 1-1/4 inches fits standard spindle configurations on equipment designed for Type 1 straight wheels.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator following ANSI B7.1 safety standards for abrasive wheel mounting. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels. Never exceed the maximum operating speed of 3600 RPM marked on the wheel blotter.