Norton 66253262684 Surface Grinding Wheel 12in 60 Grit

Product Description

The NORTON 66253262684 is a Type 1 vitrified aluminum oxide surface grinding wheel engineered for precision stock removal on ferrous and non-ferrous metals. Measuring 12 inches in diameter by 1 inch thick with a 3-inch arbor hole, this wheel carries a 60-grit medium-grade abrasive with J hardness code, making it well suited for controlled material removal where surface finish and flatness are the priority. The vitrified bond provides rigidity and porosity that promotes cool cutting and consistent performance across extended production runs. Rated at a maximum of 2,070 RPM, it is designed for use on surface grinders and compatible CNC cutting tool machines.

This wheel is appropriate for both job shop and production grinding applications. The 32A aluminum oxide abrasive is a standard choice for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It fits cylindrical grinder and surface grinder setups where a straight Type 1 profile is required. The porous structure of the vitrified bond aids chip clearance during wet or dry grinding passes.

Key Features

• Type 1 straight wheel profile with no recess and no taper
• Aluminum oxide abrasive, 32A series, for broad metal compatibility
• Vitrified bond with porous structure for cool, free-cutting action
• 60 grit, J hardness (medium grade) — balanced stock removal and surface finish
• 2,070 RPM maximum operating speed
• Gray wheel color; standard arbor hole for common surface grinder spindles

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a 12-inch Type 1 straight wheel with a 3-inch arbor hole. Suitable material applications include 400 Series Stainless, 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 or maintenance technician following ANSI B7.1 safety standards for abrasive wheel mounting. Always power down and lockout/tagout the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the maximum RPM marked on the wheel or its blotter. Flanges must be clean, flat, and of equal diameter; use proper reducing bushings if the machine spindle differs from the 3-inch bore.