Norton 66252942843 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252942843 is a Type 5 recessed surface grinding wheel designed for heavy-duty stock removal on ferrous and non-ferrous metals. Built on an aluminum oxide abrasive with a vitrified bond, it delivers consistent cut rate and free-cutting action across a wide range of metalworking applications. The wheel measures 7 inches in diameter and 1-1/2 inches thick with a 1-1/4 inch arbor hole, and carries a coarse 46-grit rating with an I hardness code. A maximum operating speed of 3600 RPM applies. Licensed machinists, tool-and-die shops, and surface grinder operators are the primary installers of this wheel type.

This wheel is suited for surface grinders and cylindrical grinders in both production shop and job-shop environments. The 32A Type 5 series designation and vitrified bond make it well matched to precision flat-surface work on hard carbon steels, soft carbon steels, tool steels, 400 series stainless steel, aluminum, cast iron, ductile iron, and gray iron. The recessed one-side geometry accommodates flange clearance on compatible spindle setups, making it a practical choice where straight-wheel clearance is limited.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cut rate and long wheel life
• Coarse 46 grit, I hardness (medium hardness rating) for aggressive stock removal
• Type 5 one-side recessed profile — 3/4 inch recess depth, 2-3/4 inch recess diameter
• Rated to 3600 RPM maximum operating speed
• Porous wheel structure promotes coolant flow and chip clearance
• Compatible with surface grinders and cylindrical grinders

Compatibility

Designed for use with surface grinders and cylindrical grinders. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Verify spindle speed, arbor size, and flange dimensions against the wheel rating before mounting.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator following the wheel manufacturer's mounting instructions and applicable ANSI B7.1 safety standards. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips prior to mounting and perform a ring test. Never exceed the 3600 RPM maximum speed rating marked on the wheel.