Norton 66253302498 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253302498 is a Type 1 surface grinding wheel engineered for aggressive stock removal on hard ferrous and exotic materials. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent cut rates and thermal stability under heavy grinding loads. It measures 14 inches in diameter, 1-1/2 inches thick, with a 5-inch arbor hole, and carries a 46 grit coarse rating with an I hardness code. The vitrified bond structure is porous, which promotes coolant flow and reduces heat buildup at the wheel-to-workpiece interface. Rated at a maximum of 1800 RPM, it is sized for production surface grinders and cylindrical grinding applications in industrial and machine shop environments.

This wheel is suited for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. It is designed for use on CNC cutting tool machines, cylindrical grinders, and surface grinders. The 5SG46-IVSP specification designation identifies the wheel within the NORTON 5SG Type 1 series, indicating a semi-friable ceramic grain construction optimized for hard-to-grind materials where conventional aluminum oxide wheels lose form or load prematurely.

Key Features

• Ceramic abrasive grain for extended wheel life on hard and exotic alloys
• Vitrified bond with open porous structure promotes coolant flow and minimizes thermal damage
• 46 grit coarse grade provides aggressive stock removal rates
• I hardness code (medium) balances self-sharpening action with wheel longevity
• Type 1 flat wheel profile fits standard surface grinder and cylindrical grinder spindles with 5-inch arbor bore
• Rated 1800 RPM maximum for safe operation on production grinding equipment

Compatibility

Designed for use with CNC cutting tool machines, cylindrical grinders, and surface grinders requiring a Type 1 wheel with a 5-inch arbor hole. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machine operator or toolroom technician following ANSI B11.9 and OSHA 29 CFR 1910.215 guarding requirements. Always verify the machine spindle speed does not exceed the 1800 RPM maximum rating stamped on the wheel before mounting. Power down and lock out the grinder before removing or installing the wheel. Inspect the wheel for cracks or chips using a ring test prior to mounting, and allow the wheel to run at operating speed for at least one minute behind the guard before engaging the workpiece.