Norton 66252940863 Surface Grinding Wheel 46 Grit 7in

Product Description

The NORTON 66252940863 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. Built with an aluminum oxide abrasive and a vitrified bond, this wheel measures 7 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole. The 46-grit, H-hardness (coarse grade) configuration delivers aggressive cutting action while the vitrified bond maintains shape retention and free-cutting performance under sustained load. The porous structure improves coolant flow and chip clearance. This wheel is rated to a maximum of 3,600 RPM and is suitable for use on surface grinders, cylindrical grinders, and CNC cutting tool machines.

This wheel is well-suited for surface grinding operations in job shop, tool room, and production environments. It is rated for use on 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The 32A series specification indicates a standard industrial-grade aluminum oxide formulation appropriate for general-purpose precision grinding where consistent finish and dimensional control are required.

Key Features

• Type 1 flat wheel profile with no recess — straight mounting on standard arbors
• 46 grit, H hardness, coarse grade for aggressive material removal
• Aluminum oxide abrasive with vitrified bond for shape retention and free cutting
• Porous wheel structure promotes coolant penetration and chip evacuation
• Maximum rated speed of 3,600 RPM
• Specification code 32A46-HVBE for direct cross-reference

Compatibility

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

Installation Notes

Installation should be performed by a qualified grinding machine operator or machinist following the machine manufacturer's wheel-mounting procedures and ANSI B11.9 safety standards for grinding machines. Always power down and lockout the machine before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the rated maximum RPM marked on the wheel blotter or this product listing.