Norton 66253364051 Surface Grinding Wheel 14in 60 Grit

Product Description

The NORTON 66253364051 is a Type 1 flat surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Built on an aluminum oxide abrasive with a vitrified bond, it measures 14 inches in diameter, 1 inch thick, and features a 5-inch arbor hole. The 60 grit, J hardness (medium grade) construction balances aggressive cutting with consistent wheel life. Rated at a maximum of 1800 RPM, this wheel is suited for production and toolroom grinding environments where repeatable surface finishes are required. Grinding wheel technicians and tool-and-die professionals are the primary installers.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is well matched for applications involving soft carbon steels, tool steels, and super alloys where a medium-grade, semi-friable abrasive offers the right balance between cut rate and wheel breakdown. The white aluminum oxide grain provides cooler grinding action, making it appropriate for heat-sensitive workpieces and precision toolroom work where maintaining workpiece metallurgy matters.

Key Features

• Aluminum oxide abrasive grain for effective grinding of carbon steels, tool steels, and super alloys
• Vitrified bond provides rigidity and consistent performance across the wheel face
• 60 grit, J hardness (medium grade) balances material removal rate with surface finish quality
• Semi-friable grain structure promotes self-sharpening and reduces glazing during use
• Non-porous, non-tapered, no-recess Type 1 configuration for straightforward spindle mounting
• Maximum rated speed of 1800 RPM for safe operation on compatible machines

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include soft carbon steels, tool steels, and super alloys. Series designation is 38A Type 1 with specification code 38A60-JVBE.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified operator or machinist following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always power down and lock out the machine before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation using the ring test, and never exceed the maximum rated RPM of 1800. Ensure flanges and blotters are clean, undamaged, and the correct size for a 5-inch arbor hole before securing the wheel.