Norton 66253364362 Type 5 Surface Grinding Wheel 46 Grit

Product Description

The NORTON 66253364362 is a Type 5 recessed surface grinding wheel built for heavy stock removal on ferrous and non-ferrous metals. It measures 14 inches in diameter and 1-1/2 inches thick with a 5-inch arbor hole, and carries a manufacturer specification of 32A46-KVBE. The abrasive is aluminum oxide bonded in a vitrified matrix, rated at coarse grade (46 grit) with a K hardness code and medium hardness rating. Maximum operating speed is 1800 RPM. The one-side recess measures 8 inches in diameter and 1/2 inch deep, which reduces contact area and improves coolant flow in surface grinding applications. Machinists and grinding shop technicians are the primary installers.

This wheel is designed for use on cylindrical grinders and surface grinders handling a wide range of materials. Rated applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is well suited to production surface grinding operations where consistent material removal and wheel life are required across multiple workpiece types. The porous structure assists with chip clearance and heat dissipation during extended grinding passes.

Key Features

• Type 5 recessed wheel geometry with 8-inch recess diameter and 1/2-inch recess depth for improved clearance
• Aluminum oxide abrasive with vitrified bond for rigid, consistent cut under pressure
• 46 grit coarse grade removes material quickly on steels, aluminum, and cast iron
• K hardness code and porous structure balance wheel life with free cutting action
• Rated to 1800 RPM maximum operating speed
• Specification code 32A46-KVBE for straightforward cross-reference

Compatibility

Rated for use with cylindrical grinders and surface grinders. 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

Grinding 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 inspect the wheel for cracks or chips before mounting and conduct a ring test. Power down and lock out the grinder before changing wheels. Never exceed the maximum operating speed of 1800 RPM stamped on the wheel blotter.