Norton 66253263149 Surface Grinding Wheel 12in 60 Grit

Product Description

The NORTON 66253263149 is a Type 1 straight surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and good form holding across a range of grinding operations. It measures 12 inches in diameter, 1-1/2 inches thick, with a 5-inch arbor hole, and weighs 11.96 pounds. The 60-grit, H-hardness (medium grade) combination suits applications requiring efficient material removal while maintaining acceptable surface finish on harder workpiece materials. Maximum operating speed is rated at 2070 RPM. The 32A60-HVBE specification identifies this wheel within the Norton 32A series.

This wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in industrial and production shop environments. Typical workpiece materials include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Its porous, vitrified-bond construction promotes coolant flow and chip clearance, making it appropriate for both wet and dry grinding setups where wheel loading is a concern.

Key Features

• Aluminum oxide abrasive — effective on steels, stainless, and cast iron
• Vitrified bond with porous structure for coolant flow and reduced loading
• 60 grit, H hardness (medium grade) for efficient stock removal
• Type 1 straight wheel profile — no recess, no taper
• Rated to 2070 RPM maximum operating speed
• 32A60-HVBE specification for easy cross-reference

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines equipped with a 5-inch arbor. Compatible workpiece materials 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 machine operator or toolroom technician following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels. Never exceed the 2070 RPM maximum operating speed marked on the wheel.