Norton 66253262385 Surface Grinding Wheel 60 Grit 12 in

Product Description

The NORTON 66253262385 is a Type 1 surface grinding wheel built for precision stock removal on ferrous metals and high-performance alloys. It measures 12 inches in diameter, 3/4 inches thick, with a 3-inch arbor hole. The wheel uses aluminum oxide abrasive grain bonded in a vitrified bond matrix, producing a white, semi-friable wheel rated at medium grade with an I hardness code. At a maximum operating speed of 2,070 RPM, it delivers consistent cut rate and surface finish control on surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated weight is 6.78 pounds.

This wheel is well suited for grinding soft carbon steels, tool steels, and super alloys in both job shop and production environments. The vitrified bond provides rigidity and porosity control, making it a reliable choice for applications requiring dimensional accuracy and repeatable finish quality. It is a single-wheel package intended for professional machine shop and grinding operations where controlled material removal and wheel geometry matter most.

Key Features

• Aluminum oxide abrasive with semi-friable grain structure for self-sharpening action on ferrous workpieces
• Vitrified bond for rigidity and consistent form-holding during surface and cylindrical grinding
• I hardness code, medium grade — balances grain retention with free cutting behavior
• Non-porous, non-tapered Type 1 flat wheel geometry with no recess
• Maximum rated speed of 2,070 RPM — never exceed this value in operation
• Specification designation 38A60-IVBE for cross-reference and replacement ordering

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable material applications include soft carbon steels, tool steels, and super alloys as specified by the manufacturer.

Installation Notes

Grinding wheel mounting and dressing must be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 standards for abrasive wheel machinery. Always inspect the wheel for cracks or chips before mounting and perform a ring test per manufacturer guidelines. Power down and lockout the grinder before mounting or removing the wheel. Never exceed the maximum RPM marked on the wheel or its packaging.