Norton 66252941024 Surface Grinding Wheel 46 Grit 7in

Product Description

The NORTON 66252941024 is a Type 1 surface grinding wheel engineered for material 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, rated at a coarse 46 grit with an I hardness code (medium hardness rating). Rated to a maximum of 3600 RPM, this wheel is spec-coded 38A46-IVBE and is non-porous and non-tapered. It is a standard replacement-style grinding wheel installed by machinists and tool-and-die technicians on precision surface grinders and cylindrical grinders.

This wheel is suited for surface grinding operations in job shops, tool rooms, and production machining environments. It performs on soft carbon steels, tool steels, and super alloys, making it a versatile choice for ferrous material applications. The semi-friable aluminum oxide grain self-sharpens during use, supporting consistent cut rates across long grinding sessions. Compatible with CNC cutting tool machines, cylindrical grinders, and surface grinders where a 7-inch Type 1 wheel is required.

Key Features

• Type 1 flat wheel profile — no recess, no taper, direct drop-in fit on standard arbors
• 46 grit coarse aluminum oxide abrasive for aggressive stock removal
• Vitrified bond provides rigidity and cool cutting action on ferrous metals
• Semi-friable grain structure promotes self-sharpening for extended wheel life
• I hardness (medium) balances wheel life against cut rate on varied steel grades
• 3600 RPM maximum rated speed for safe operation on compatible machines

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines accepting a 7-inch Type 1 wheel with a 1-1/4 inch arbor hole. Rated for soft carbon steels, tool steels, and super alloys per manufacturer specification.

Installation Notes

Installation should be performed by a qualified machinist or grinding technician with the machine fully de-energized and locked out per OSHA lockout/tagout procedures. Inspect the wheel for cracks or chips using a ring test before mounting. Never exceed the 3600 RPM maximum speed rating stamped on the wheel. Ensure the arbor hole and flanges are clean and properly sized before tightening to avoid wheel stress.