Norton 66253262713 Surface Grinding Wheel 60 Grit 12 in

Product Description

The NORTON 66253262713 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. The wheel features aluminum oxide abrasive bonded in a vitrified matrix, delivering consistent cut rate and thermal stability across a wide range of surface grinding applications. At 12 inches in diameter and 1 inch thick with a 3-inch arbor hole, it is sized for industrial surface grinders. The 60-grit, I hardness (medium grade) specification balances aggressive material removal with controlled surface finish. Maximum operating speed is 2,070 RPM. Weight is 9.045 pounds.

This wheel is rated for use on soft carbon steels, tool steels, and super alloys in production and toolroom environments. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The 38A series Type 1 profile is a flat, straight wheel suited for horizontal-spindle surface grinding operations where the wheel face contacts the workpiece. The non-porous, semi-friable aluminum oxide grain continuously fractures to expose fresh cutting edges, making it well suited for heat-sensitive materials and high-stock-removal passes.

Key Features

• Aluminum oxide abrasive grain — semi-friable, self-sharpening under load
• Vitrified bond provides rigidity and thermal resistance for dry and wet grinding
• 60 grit, I hardness (medium grade) balances stock removal with surface finish control
• Type 1 flat profile with no recess — standard for horizontal-spindle surface grinders
• 2,070 RPM maximum operating speed — do not exceed
• White wheel color consistent with 38A aluminum oxide series

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Designed for grinding soft carbon steels, tool steels, and super alloys. Specification code 38A60-IVBE identifies the exact abrasive, grit, grade, and bond combination for cross-reference and replacement ordering.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding specialist following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Before mounting, inspect the wheel for cracks using a ring test — a cracked wheel must not be used. Ensure the machine spindle speed does not exceed the 2,070 RPM maximum marked on the wheel. Use correct flanges and a compressible blotter between the flange and wheel face; never overtighten the arbor nut. Dress the wheel with an appropriate diamond dresser before first use and after any glazing is observed.