Norton 66253044175 Surface Grinding Wheel 46 Grit 8in

Product Description

The NORTON 66253044175 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. The wheel measures 8 inches in diameter by 3/4 inches thick with a 1-1/4 inch bore. It is constructed from white aluminum oxide abrasive bonded with a vitrified bond and carries a coarse grade rating at 46 grit with an H hardness code. The semi-friable grain structure promotes consistent cut and controlled wear. Rated at a maximum of 3105 RPM, this wheel is suited for production and maintenance grinding environments where dimensional accuracy matters.

This grinding wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It fits standard 1-1/4 inch arbor spindles common across production shop and tool room setups. The 38A Type 1 series designation identifies it as a straight-profile, flat-face wheel appropriate for horizontal and vertical surface grinding operations. Material applications include soft carbon steels, tool steels, and super alloys, making it a practical choice for tool rooms and general machining shops handling a range of ferrous workpieces.

Key Features

• 46 grit coarse grade aluminum oxide for aggressive stock removal on ferrous metals
• H hardness (Soft) rating with semi-friable grain for self-dressing action during cut
• Vitrified bond provides rigidity and consistent form retention during grinding
• Type 1 straight profile with no recess, compatible with standard surface and cylindrical grinder spindles
• White wheel color indicates pure aluminum oxide, preferred for heat-sensitive tool steel applications
• Maximum rated speed of 3105 RPM for safe operation on designated machines

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines equipped with a 1-1/4 inch arbor. Suitable for grinding soft carbon steels, tool steels, and super alloys per manufacturer specifications.

Installation Notes

Grinding wheel installation must be performed by a qualified machinist or tool room technician. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the rated maximum RPM of 3105. Wheel guards must remain in place during operation in accordance with applicable ANSI B11 and OSHA standards.