Norton 66253149865 Surface Grinding Wheel 80 Grit 10 in

Product Description

The NORTON 66253149865 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and high-performance alloys. Built with white aluminum oxide abrasive in a vitrified bond, it delivers consistent cut rates and predictable wheel breakdown — characteristics that matter on surface grinders and cylindrical grinders running production or toolroom work. At 10 inches in diameter, 0.5 inches thick, with a 3-inch arbor hole, it fits standard surface grinder spindles. The 80-grit, K-hardness (medium) specification balances material removal with surface finish on a wide range of workpiece materials.

This wheel is rated for surface grinders, cylindrical grinders, and CNC cutting tool machines. It is suited for soft carbon steels, tool steels, and super alloys — making it a practical choice for toolroom environments, job shops, and production grinding operations where consistent wheel performance across varied steel types is required. The semi-friable aluminum oxide grain self-sharpens under load, reducing the need for frequent dressing on harder tool steels. Licensed machinists and grinding machine operators are the primary installers and users of this wheel.

Key Features

• White aluminum oxide abrasive — semi-friable grain for self-sharpening action on tool steels and super alloys
• Vitrified bond construction provides rigidity and consistent geometry throughout wheel life
• 80 grit, K hardness (medium grade) — balances stock removal rate with achievable surface finish
• Type 1 flat wheel profile with no recess — straight mounting on standard 3-inch arbor spindles
• Maximum rated speed of 2485 RPM — verify against machine nameplate before mounting
• Series 38A Type 1 specification (38A80-KVBE) for traceable ordering and replacement

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 3-inch arbor hole.

Installation Notes

Grinding wheel mounting must be performed by qualified personnel following ANSI B7.1 safety standards. Always perform a ring test before mounting, inspect the wheel for cracks or chips, and confirm the machine spindle speed does not exceed the 2485 RPM maximum rating stamped on the wheel. Use proper flanges and a compressible blotter on each side of the wheel, and run the machine under guard for at least one minute before bringing it into contact with the workpiece. Never exceed the rated RPM.