Norton 66253038892 Surface Grinding Wheel 8in 46 Grit Type 1

Product Description

The NORTON 66253038892 is a Type 1 straight surface grinding wheel engineered for precision stock removal on ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rate and form-holding throughout the grind cycle. It measures 8 inches in diameter, 0.5 inches thick, with a 1-1/4 inch arbor hole. The 46-grit, I-hardness (coarse grade) specification positions it as a workhorse wheel for aggressive material removal rather than fine finishing. Rated at a maximum of 3,105 RPM, it suits standard surface grinder spindle speeds common in production and toolroom environments. The 32AA46-IVTR specification code confirms abrasive type, grade, structure, and bond for techs who cross-reference wheel specs directly.

This wheel is suited for surface grinding and cylindrical grinding applications in both production shops and toolroom settings. It is rated for use on hard carbon steels, soft carbon steels, and tool steels, making it a practical choice for shops working across a range of ferrous workpiece materials. Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The vitrified bond structure provides good porosity, which aids in chip clearance and reduces heat buildup during extended grinding passes.

Key Features

• Aluminum oxide abrasive for reliable performance on carbon and tool steels
• Vitrified bond construction provides rigidity and consistent wheel breakdown
• Porous structure aids coolant retention and chip clearance during grinding
• 46-grit coarse grade suited for aggressive stock removal applications
• Type 1 straight wheel geometry fits standard surface and cylindrical grinder flanges
• 32AA46-IVTR specification code for precise cross-referencing and replacement verification

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for grinding hard carbon steels, soft carbon steels, and tool steels. The 1-1/4 inch arbor hole fits standard spindle configurations on machines accepting Type 1 straight wheels of this diameter.

Installation Notes

Grinding wheel mounting and dressing must be performed by qualified personnel following ANSI B7.1 safety standards and the machine manufacturer's guidelines. Always power down and lock out the grinder before mounting or removing wheels. Inspect the wheel for cracks or chips before installation using a ring test, and never exceed the maximum RPM stamped on the wheel or listed on the blotter. A proper wheel dressing pass should be performed after mounting to ensure concentricity and expose fresh abrasive.