Norton 66253364509 Surface Grinding Wheel 14in 46 Grit

Product Description

The NORTON 66253364509 is a Type 1 surface grinding wheel designed for high-stock-removal applications on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel carries a coarse 46 grit rating and a K hardness code, placing it in the medium hardness range. It measures 14 inches in diameter, 2 inches thick, with a 5-inch arbor hole, and is rated to a maximum of 1800 RPM. At 22.92 pounds, this is a heavy-duty wheel suited for production grinding environments. The porous structure of the wheel promotes coolant flow and chip clearance during aggressive cuts. Licensed HVAC, machining, and toolroom professionals install and dress these wheels as part of regular surface grinder maintenance cycles.

This grinding wheel is well suited for surface grinder and cylindrical grinder applications in industrial and toolroom settings. It performs across a broad range of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The wheel is also compatible with CNC cutting tool machines. Its coarse grit makes it a strong choice for rapid material removal rather than finish grinding. The gray, non-tapered, no-recess Type 1 profile fits standard surface grinder spindle configurations at the listed arbor size.

Key Features

• Aluminum oxide abrasive for broad metal compatibility including stainless, carbon steel, and cast iron
• Vitrified bond with porous structure promotes chip clearance and coolant penetration
• 46 grit coarse grade rated for aggressive stock removal
• K hardness code, medium hardness rating, balances wheel life and cut rate
• Type 1 flat wheel profile with no recess and no taper fits standard surface grinder arbors
• Maximum spindle speed of 1800 RPM

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Designed for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Series designation is 32A Type 1 with specification code 32A46-KVBE.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or toolroom technician following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips using a ring test before mounting, and never exceed the rated maximum RPM. Power down and lock out the grinder before mounting or removing the wheel. A proper blotter and flanges of the correct diameter must be used to seat the wheel safely on the spindle.