Norton 66253160143 Surface Grinding Wheel 60 Grit 10 in

Product Description

The NORTON 66253160143 is a Type 1 vitrified aluminum oxide surface grinding wheel rated for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It measures 10 inches in diameter, 3/4 inches thick, with a 3-inch arbor hole. The wheel carries a 60-grit medium-grade abrasive with K hardness and a maximum operating speed of 2,485 RPM. The vitrified bond provides rigidity and consistent stock removal across a broad range of ferrous and non-ferrous materials. This wheel is installed and changed out by machinists and tool-room technicians in production and maintenance shop environments.

This wheel is suited for stock removal and surface finishing operations on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It fits surface grinder and cylindrical grinder spindles with a 3-inch bore. The 32A series designation identifies it as a Norton aluminum oxide grain formulation optimized for tool steels and ferrous alloys requiring consistent cut rate and wheel life in moderate-pressure grinding applications.

Key Features

• 60-grit aluminum oxide abrasive with K hardness for medium-grade stock removal
• Vitrified bond construction provides rigidity and consistent wheel form retention
• Type 1 straight wheel profile with no recess — no taper
• Rated to 2,485 RPM maximum operating speed
• Compatible material applications include stainless steel, tool steels, carbon steels, aluminum, and cast iron variants
• Porous wheel structure supports coolant flow and chip clearance during wet or dry grinding

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a Type 1 straight wheel with a 3-inch arbor bore. 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

Grinding wheel mounting and replacement should be performed by a qualified machinist or tool-room technician following ANSI B11.9 and applicable OSHA abrasive wheel standards. Always power down and lock out the grinder spindle before mounting or removing the wheel. Perform a ring test and inspect the wheel for cracks or chips before installation. Never exceed the 2,485 RPM maximum speed rating marked on the wheel blotter.