Norton 66252940894 Surface Grinding Wheel 80 Grit 7in

Product Description

The NORTON 66252940894 is a Type 1 straight surface grinding wheel designed for precision stock removal and surface finishing on a wide range of ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rate and shape retention under demanding shop conditions. It measures 7 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole. The 80 grit, medium-grade construction with an H hardness code keeps the wheel from loading on harder workpieces while still providing an efficient cut. Rated to 3,600 RPM, it is suited for production and maintenance grinding operations performed by machinists and tool-and-die tradespeople.

This wheel is rated for use on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines in both job-shop and production environments. The porous, vitrified structure promotes coolant retention and chip clearance, making it a practical choice for wet or dry surface grinding applications where finish consistency matters.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cut rate and wheel shape retention
• 80 grit medium grade with H hardness code — balances stock removal with workpiece surface integrity
• Porous wheel structure promotes chip clearance and coolant flow during grinding
• Type 1 straight wheel geometry with no recess for broad surface grinder compatibility
• Rated to 3,600 RPM for standard surface and cylindrical grinding machines
• Series designation 32A80-HVBE for specification-driven replacement and procurement

Compatibility

Rated for use on 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines.

Installation Notes

Wheel mounting and dressing should be performed by a qualified machinist or grinding machine operator following ANSI B11.9 safety standards for grinding machines. Always power down and lock out the machine before changing wheels. Inspect the wheel for cracks or chips before mounting — never use a damaged wheel. Confirm the machine spindle speed does not exceed the 3,600 RPM rating marked on the wheel.