Norton 66252942207 Surface Grinding Wheel 60 Grit 7in

Product Description

The NORTON 66252942207 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and thermal stability during wet or dry grinding operations. It measures 7 inches in diameter, 3/4 inches thick, with a 1-1/4 inch arbor hole. The 60 grit, I hardness (medium grade) rating makes it well suited for moderate material removal while maintaining reasonable surface finish quality. Rated to 3600 RPM, it fits standard surface and cylindrical grinding spindle configurations used in production and toolroom settings.

This wheel is used in surface grinding, cylindrical grinding, and CNC cutting tool machine applications. It is appropriate for grinding soft carbon steels, tool steels, and super alloys where controlled abrasive action and wheel integrity under load are required. The 38A series white aluminum oxide construction makes this wheel a common choice for toolroom technicians and grinding machine operators working on precision components that require repeatable results across multiple passes.

Key Features

• Type 1 flat wheel profile for surface and cylindrical grinding applications
• White aluminum oxide abrasive — semi-friable for consistent self-sharpening action
• Vitrified bond provides rigidity and open structure for chip clearance
• 60 grit medium grade for balanced stock removal and surface finish
• I hardness code suits softer workpiece materials including soft carbon steels and super alloys
• 3600 RPM maximum operating speed

Compatibility

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

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified grinding machine operator or machinist following ANSI B11.9 safety standards. Always inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the rated 3600 RPM. Power down and lock out the machine before changing wheels. Use flanges of the correct diameter and ensure the blotter washers are in place before tightening.