Norton 66253263180 Surface Grinding Wheel 46 Grit Type 5

Product Description

The NORTON 66253263180 is a Type 5 recessed surface grinding wheel designed for use on surface grinders and cylindrical grinders in metalworking applications. Constructed with an aluminum oxide abrasive and a vitrified bond, this wheel measures 12 inches in diameter and 1.5 inches thick with a 5-inch arbor hole. It carries a 46-grit coarse grade and an H hardness code, suited for aggressive stock removal on a range of ferrous and non-ferrous metals. The wheel runs at a maximum of 2070 RPM and weighs 10.92 pounds. Licensed HVAC, metalworking, and machine shop professionals install this wheel on compatible grinding equipment as a direct production or maintenance tool.

This wheel 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. It is appropriate for both production grinding and tool-room applications where a coarse, free-cutting action is needed to remove material quickly. The one-side recessed Type 5 geometry accommodates equipment setups that require clearance at the wheel face. The 32A series specification designates this as a standard Norton aluminum oxide formulation suitable for demanding industrial grinding environments.

Key Features

• 46-grit coarse grade aluminum oxide abrasive for aggressive stock removal
• Vitrified bond provides rigidity and consistent cut rate throughout wheel life
• Type 5 one-side recessed profile with 7.5-inch recess diameter and 0.5-inch recess depth
• Rated for a maximum of 2070 RPM
• Porous structure promotes coolant flow and chip clearance during grinding
• Compatible with a broad range of ferrous and non-ferrous metals including stainless, tool steels, and cast iron

Compatibility

Designed for use with surface grinders and cylindrical grinders. Rated for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron as stated by the manufacturer.

Installation Notes

Mounting and dressing of grinding wheels should be performed by qualified personnel following ANSI B11.9 and OSHA 1910.215 standards for abrasive wheel machinery. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before installation and perform a ring test; never mount a damaged wheel. Use the correct flanges and blotters for the arbor size and never exceed the maximum RPM marked on the wheel.