Norton 66252941163 Surface Grinding Wheel 100 Grit 7 in

Product Description

The NORTON 66252941163 is a Type 1 surface grinding wheel designed for precision material removal on ferrous metals and high-performance alloys. Constructed from white aluminum oxide abrasive bonded with a vitrified bond, this wheel delivers consistent cutting action and thermal stability during extended grinding operations. The wheel measures 7 inches in diameter, 1/2 inch thick, and accepts a 1-1/4 inch arbor bore. Rated at a maximum of 3600 RPM, it carries a Fine grade designation with an I hardness code, making it well-suited for controlled stock removal where surface finish quality matters. Machinists, tool grinders, and maintenance technicians are the primary installers and users.

This wheel is appropriate for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both production and maintenance shop environments. Its aluminum oxide composition and semi-friable structure make it a practical choice for grinding soft carbon steels, tool steels, and super alloys. The non-porous, vitrified bond construction provides rigidity and resistance to coolant degradation, supporting wet or dry grinding setups in light industrial and job shop applications. The 38A Type 1 series designation identifies this wheel within NORTON's aluminum oxide grinding line.

Key Features

• White aluminum oxide abrasive for consistent cut rate on ferrous and alloy materials
• Vitrified bond construction resists coolant breakdown and maintains wheel form
• 100 grit, Fine grade for controlled stock removal and improved surface finish
• I hardness code and semi-friable structure balance wheel life with cutting efficiency
• Non-porous, no-recess Type 1 flat wheel profile fits standard surface and cylindrical grinder flanges
• Maximum operating speed of 3600 RPM

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Rated for grinding soft carbon steels, tool steels, and super alloys per the manufacturer specification 38A100-IVBE.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified machinists or tool room technicians following the wheel manufacturer's posted speed rating and ANSI B7.1 safe use guidelines. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the maximum RPM stamped on the wheel or blotter. Use proper flanges and a clean, undamaged arbor bore to ensure concentric seating.