Norton 66253364038 Surface Grinding Wheel 80 Grit 14in

Product Description

The NORTON 66253364038 is a Type 1 straight surface grinding wheel designed for precision stock removal on ferrous and non-ferrous materials. It measures 14 inches in diameter, 1 inch thick, with a 5 inch arbor bore. The wheel is constructed from aluminum oxide abrasive bonded with a vitrified bond system, producing a porous, open structure that clears swarf efficiently and reduces heat buildup at the workpiece. Hardness code J and medium grade classification indicate a wheel that releases dulled abrasive grains at a controlled rate, maintaining consistent cut on a range of ferrous alloys and cast metals. Rated at a maximum of 1800 RPM, it is sized for large-capacity surface grinders used in production and tool-room environments.

This wheel is suited for surface grinding operations in both production shops and tool-room settings. It performs on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Compatible equipment includes surface grinders, cylindrical grinders, and CNC cutting tool machines. The 32A series designation identifies the specific aluminum oxide grain formulation Norton uses for general-purpose ferrous grinding. At 11.75 pounds, the wheel requires proper flange and blotter mounting to distribute clamping load correctly across the hub area.

Key Features

• Aluminum oxide abrasive for versatile ferrous and non-ferrous stock removal
• Vitrified bond with porous structure promotes swarf clearance and reduces heat buildup
• J hardness code and medium grade for controlled grain release and consistent cut rate
• 14 inch diameter x 1 inch thick x 5 inch bore — fits large production surface grinders
• 1800 RPM maximum speed rating
• Series 32A Type 1 straight wheel, no recess, non-tapered profile

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. 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 grinding machine operator following ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels. Before mounting, perform a ring test to check for cracks. Power down and lock out the machine before changing wheels. Always use matched flanges and paper blotters of the correct diameter, and never exceed the maximum RPM marked on the wheel.