Norton 66253043431 Surface Grinding Wheel 60 Grit 8 in

Product Description

The NORTON 66253043431 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals in surface grinding and cylindrical grinding applications. Built from aluminum oxide abrasive with a vitrified bond, this wheel carries a medium grade (hardness code I) and a 60-grit specification, placing it in the range suited for moderate material removal with acceptable surface finish. The semi-friable grain structure allows controlled breakdown under load, helping maintain a consistent cut. At a maximum operating speed of 3600 RPM, this wheel is rated for use on standard surface grinders and CNC cutting tool machines. Licensed trades and skilled machinists install and dress this wheel type.

This wheel is built for use on soft carbon steels, tool steels, and super alloys. It fits surface grinders, cylindrical grinders, and CNC cutting tool machines. The 38A Type 1 series designation identifies the specific abrasive grain and bond formulation, which is widely specified in toolroom and production grinding environments. The wheel has no recess and no taper, making it a straightforward flat-face Type 1 configuration ready for standard arbor mounting.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cutting action and thermal stability
• 60-grit medium grade with hardness code I for balanced stock removal on ferrous metals
• Semi-friable grain structure promotes self-sharpening under normal grinding loads
• Rated to 3600 RPM maximum operating speed
• Type 1 flat wheel with no recess and no taper for standard arbor use
• White wheel color aids visual inspection for loading and glazing during use

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suited for grinding soft carbon steels, tool steels, and super alloys. Arbor hole size of 1-1/4 inches fits standard machine spindles for this wheel diameter class.

Installation Notes

Grinding wheels must be installed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 guarding requirements. Before mounting, perform a ring test to check for cracks and verify the wheel speed rating meets or exceeds the machine nameplate RPM. Always use the correct blotters and flanges supplied with or specified for the grinder, and never exceed the maximum rated speed of 3600 RPM. Allow the wheel to run at operating speed for at least one minute in a guarded area before bringing it into contact with the workpiece.