Norton 66253363947 Surface Grinding Wheel 14in 60 Grit

Product Description

The NORTON 66253363947 is a Type 1 surface grinding wheel engineered for precision stock removal on ferrous metals and high-performance alloys. Built with aluminum oxide abrasive and a vitrified bond, this wheel measures 14 inches in diameter, 1 inch thick, and carries a 5-inch arbor hole. It is rated for a maximum of 1800 RPM and carries an I hardness code, placing it in the medium-grade range. The 60 grit designation makes it well suited for moderate material removal where surface finish and dimensional accuracy are both priorities. At 11.46 pounds, the wheel has the mass expected of a production-grade tool in this diameter class.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in shop environments handling soft carbon steels, tool steels, and super alloys. The 38A series aluminum oxide construction performs consistently across both roughing and light finishing passes on these materials. It is a non-porous, non-tapered, no-recess Type 1 flat wheel, making it a straightforward drop-in for standard surface grinding spindle setups in job shop and production grinding applications.

Key Features

• Aluminum oxide abrasive — semi-friable for self-sharpening action on ferrous and alloy workpieces
• Vitrified bond provides rigidity and consistent performance across RPM range up to 1800 RPM
• I hardness code (medium grade) balances wheel life with controlled cut rate
• 60 grit for moderate stock removal with acceptable surface finish
• Type 1 flat wheel with no recess and no taper — compatible with standard surface grinder arbors
• White wheel color allows visual wear monitoring during use

Compatibility

Rated for use with CNC cutting tool machines, cylindrical grinders, and surface grinders. Suitable for grinding soft carbon steels, tool steels, and super alloys. Follows the 38A Type 1 series specification 38A60-IVBE.

Installation Notes

Grinding wheel mounting should be performed by a qualified machine operator or maintenance technician following ANSI B11.9 safety standards for grinding machines. Always de-energize and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the maximum rated speed of 1800 RPM. Use proper flanges and blotters as specified by the machine manufacturer.