Norton 66253160892 Surface Grinding Wheel 46 Grit 10 in

Product Description

The NORTON 66253160892 is a Type 1 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on ferrous metals and high-performance alloys. Built to the 38A46-JVBE specification, it carries a 46-grit coarse cut with a J hardness code and semi-friable grain structure that self-sharpens under load. The vitrified bond provides rigidity and porosity for efficient chip clearance and coolant flow. At 10 inches in diameter, 1 inch thick, and with a 3-inch arbor hole, this wheel mounts to standard surface and cylindrical grinders. It is installed and operated by qualified grinding machine operators and tool room machinists.

This wheel is rated for use on soft carbon steels, tool steels, and super alloys. It is compatible with CNC cutting tool machines, cylindrical grinders, and surface grinders. The white aluminum oxide abrasive is well suited for applications where heat-sensitive workpieces require a cooler-cutting, friable grain. Typical scenarios include tool room surface grinding, reconditioning of flat stock, and precision finishing of hardened tool steel components where geometry tolerance is critical.

Key Features

• 38A46-JVBE specification: 46-grit coarse cut with J hardness and vitrified bond for rigid, consistent grinding action
• Semi-friable aluminum oxide grain self-sharpens under load, reducing glazing on soft carbon steels and super alloys
• White wheel color indicates high-purity aluminum oxide abrasive suited for heat-sensitive and hardened workpieces
• Non-porous, no-recess Type 1 flat wheel profile for straight surface and cylindrical grinding applications
• Maximum operating speed of 2485 RPM — never exceed this rating during operation
• 3-inch arbor hole fits standard surface grinder spindles without adapter reduction in most Type 1 configurations

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders as stated by the manufacturer. Suitable material applications include soft carbon steels, tool steels, and super alloys.

Installation Notes

Installation must be performed by a qualified operator following ANSI B7.1 safety standards for abrasive wheel mounting. Always power down and lock out the grinding machine before mounting or removing the wheel. Inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the marked maximum operating speed of 2485 RPM. Use proper flanges and a blotter gasket on each side of the wheel as required by the machine manufacturer.