Norton 66252941946 Surface Grinding Wheel 80 Grit 7 in

Product Description

The NORTON 66252941946 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Built around an aluminum oxide abrasive with a vitrified bond, it delivers consistent cut rates and wheel integrity across extended grinding cycles. At 7 inches in diameter and 3/4 inches thick with a 1-1/4 inches arbor hole, this wheel fits standard surface grinder spindles. The 80 grit, medium-grade (Hardness Code I) construction balances aggressive material removal with a controllable finish. Rated to 3600 RPM maximum, it is suited for production and tool-room environments where dimensional accuracy is required. Licensed machinists, tool grinders, and CNC operators are the primary installers and users of this wheel.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable material applications include 400 Series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous, vitrified structure promotes coolant flow and chip clearance, which is especially useful when working harder alloys or heat-sensitive workpieces. The gray, non-tapered, no-recess profile matches standard Type 1 wheel mounting hardware without modification.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, durable cutting action
• 80 grit medium grade (Hardness Code I) for balanced material removal and surface finish
• Type 1 flat wheel profile — no recess, no taper — for direct spindle mounting
• Porous construction promotes coolant penetration and chip evacuation
• 3600 RPM maximum speed rating for surface and cylindrical grinder use
• Series designation 32A80-IVBE confirms abrasive specification for procurement and replacement

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a Type 1, 7 inches diameter wheel with a 1-1/4 inches arbor hole. Verified compatible material applications include 400 Series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Wheel mounting and dressing should be performed by a qualified machinist or tool-room technician in accordance with ANSI B11.9 and applicable OSHA abrasive wheel standards. Always inspect the wheel for cracks or chips using the ring test before mounting, and confirm spindle RPM does not exceed the 3600 RPM maximum rating. Power down and lock out the machine before removing the existing wheel or installing this one. Never force the wheel onto the spindle arbor — the 1-1/4 inches hole should seat freely without modification.