Norton 66253043746 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253043746 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals and specialty alloys. Measuring 8 inches in diameter and 1/2 inch thick with a 1-1/4 inch arbor hole, this wheel is built around a white aluminum oxide abrasive grain bonded in a vitrified matrix. The 46 grit, H hardness (Coarse grade) combination delivers aggressive cutting action while the semi-friable grain structure supports consistent, cool-running performance. Rated to a maximum of 3,105 RPM, it is sized and rated for surface grinders, cylindrical grinders, and CNC cutting tool machines used in production and toolroom environments.

This wheel is well suited for grinding soft carbon steels, tool steels, and super alloys in both job shop and production settings. The 38A Type 1 series is a standard format recognized by tool and cutter grinder operators for its predictable breakdown characteristics and stable vitrified bond, which resists loading and holds form during extended surface grinding passes. Licensed trades and machine operators working in metalworking, toolroom maintenance, and precision grinding will find this wheel appropriate for routine and finish-critical applications alike.

Key Features

• White aluminum oxide abrasive for consistent cutting on ferrous metals and super alloys
• Vitrified bond resists loading and maintains wheel form under heat and pressure
• 46 grit coarse grade for efficient stock removal
• H hardness code with semi-friable grain for controlled, cool-running grinding
• Type 1 flat wheel profile fits standard surface grinder and cylindrical grinder spindle setups
• Non-porous, non-tapered, no-recess construction for straightforward mounting

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for material applications including soft carbon steels, tool steels, and super alloys. Arbor hole size of 1-1/4 inches is required for proper mounting.

Installation Notes

Installation should be performed by a qualified machine operator or maintenance professional following the grinder manufacturer guidelines and applicable ANSI B11 safety standards. Power down and lock out the machine before mounting or removing any grinding wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the rated maximum RPM of 3,105. Use appropriate flanges and blotters as specified by the machine manufacturer.