Norton 66252942689 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252942689 is a Type 5 recessed surface grinding wheel engineered for demanding material removal on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent stock removal with good form retention across a variety of grinding applications. The wheel is rated at a maximum of 3600 RPM and carries an H hardness code, placing it in the soft-to-medium hardness range that suits aggressive cutting action on hard materials. At 7 inches in diameter and 1 inch thick with a 1-1/4 inch arbor hole, it mounts on standard surface grinders and cylindrical grinders used in professional machine shops and industrial settings.

This wheel is suited for surface grinding and cylindrical grinding operations where coarse stock removal is the priority. Its 46-grit, coarse-grade construction performs well on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The one-side recess design, with a 3-inch recess diameter and 1/2-inch recess depth, reduces wheel weight and improves clearance on recessed-hub flanges. Machinists, tool and die makers, and precision grinder operators will find it a practical choice for production and maintenance grinding work.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cutting and good form retention
• Type 5 one-side recessed profile with 3-inch recess diameter and 1/2-inch recess depth
• 46-grit coarse grade for aggressive material removal
• H hardness code rated for soft-to-medium hardness performance on hard metals
• 3600 RPM maximum speed rating
• Porous structure promotes coolant flow and chip clearance during grinding

Compatibility

Designed for use with surface grinders and cylindrical grinders accepting a 7-inch diameter, 1-inch thick Type 5 wheel with a 1-1/4 inch arbor hole. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI B7.1 safety standards. Never exceed the maximum RPM marked on the wheel, and always use the correct guarding for the wheel diameter and machine type.