Norton 66253160158 Surface Grinding Wheel 46 Grit 10 in

Product Description

The NORTON 66253160158 is a Type 1 vitrified aluminum oxide surface grinding wheel engineered for precision stock removal on ferrous and high-performance materials. Measuring 10 inches in diameter and 3/4 inches thick with a 3-inch arbor hole, this wheel runs at a maximum of 2485 RPM. The 46-grit, J-hardness (medium) rating delivers coarse material removal while maintaining dimensional stability under load. The vitrified bond provides rigidity and free cutting action, making it well-suited for high-accuracy surface grinding applications where consistent wheel geometry matters.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is rated for soft carbon steels, tool steels, and super alloys, covering a wide range of production and toolroom grinding tasks. The semi-friable aluminum oxide grain continuously fractures to expose fresh cutting edges, extending wheel life on both interrupted and continuous cuts. The non-tapered, non-recessed Type 1 flat profile fits standard wheel flanges without modification. Typical applications include surface plate work, fixture grinding, and tool reconditioning in job shops and production facilities.

Key Features

• Type 1 flat wheel profile with no recess and no taper for direct flange mounting
• 46 grit coarse aluminum oxide grain for aggressive stock removal
• J hardness (medium) vitrified bond resists glazing on soft carbon steels and super alloys
• Semi-friable grain structure self-sharpens during use to maintain cut rate
• White aluminum oxide composition minimizes heat buildup at the workpiece surface
• Series 38A Type 1 specification (38A46-JVBE) for verified OEM-style replacement ordering

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. The 3-inch arbor hole and 10-inch diameter conform to standard spindle configurations for this wheel class.

Installation Notes

Grinding wheel installation must be performed by a qualified operator following ANSI B11.9 and applicable OSHA standards for abrasive wheel machinery. Always inspect the wheel for cracks or chips before mounting and perform a ring test to confirm integrity. Power down and lock out the grinder before changing wheels. Never exceed the rated maximum of 2485 RPM; verify spindle speed against the wheel label before startup.