Norton 66252941049 Surface Grinding Wheel 80 Grit 7 in

Product Description

The NORTON 66252941049 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel is constructed from aluminum oxide abrasive in a vitrified bond matrix, rated at medium grade with a J hardness code. At a maximum operating speed of 3600 RPM, it delivers consistent material removal on surface grinders, cylindrical grinders, and CNC cutting tool machines. This is a non-porous, non-tapered, no-recess wheel with a white wheel color and semi-friable abrasive structure, suited to controlled grinding applications requiring reliable grain breakdown and cool cutting action.

This wheel is designed for use in professional shop environments where tight tolerances are required. It fits surface grinder spindles accepting a 1-1/4 inch bore and is appropriate for both production grinding and toolroom work. Typical applications include surface grinding of soft carbon steel workpieces, tool steel components, and super alloy parts where abrasive breakdown and heat management are critical. It is used by machinists, tool and die technicians, and grinding machine operators working with CNC cutting tool machines, cylindrical grinders, and surface grinders.

Key Features

• Aluminum oxide abrasive material with semi-friable grain structure for consistent breakdown during grinding
• Vitrified bond provides rigidity and porosity suited to precision surface and cylindrical grinding
• J hardness code (medium grade) balances wheel life with free cutting action on a range of steel materials
• Type 1 flat wheel profile with no recess and no taper for straightforward mounting and dressing
• Rated to 3600 RPM maximum operating speed
• Non-porous construction maintains wheel integrity and dimensional consistency through extended use

Compatibility

Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a 7-inch diameter, 1-1/4 inch bore wheel. Suitable for grinding soft carbon steels, tool steels, and super alloys.

Installation Notes

Grinding wheel installation and dressing must be performed by a qualified machinist or grinding machine operator following ANSI B11.9 safety standards. Power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using a ring test before mounting, and never exceed the rated maximum RPM of 3600. Always true and dress the wheel after mounting to ensure balanced, concentric operation before engaging the workpiece.