Norton 66252941023 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 66252941023 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and high-performance alloys. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and controlled breakdown on soft carbon steels, tool steels, and super alloys. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The 46-grit, H-hardness (coarse grade) specification makes it well suited for aggressive material removal where surface finish is secondary to stock removal rate. Maximum operating speed is 3,600 RPM.

This wheel is used in production and maintenance grinding applications involving surface grinders, cylindrical grinders, and CNC cutting tool machines. The white aluminum oxide, semi-friable construction self-dresses effectively, reducing heat buildup at the workpiece. It is the 38A Type 1 series from NORTON, a specification widely referenced in toolroom and production floor environments where consistent wheel behavior across multiple passes is required.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, controlled cut
• 46 grit, H hardness coarse grade for aggressive stock removal
• Semi-friable construction promotes self-dressing and reduces heat transfer
• Porous wheel structure supports coolant flow and chip clearance
• Rated to 3,600 RPM maximum operating speed
• No recess, no taper — standard flat Type 1 profile

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. Series specification 38A46-HVBE.

Installation Notes

Grinding wheel mounting and dressing must be performed by a qualified machine operator or tool and die technician following ANSI B11.9 and OSHA 29 CFR 1910.215 standards. Before mounting, inspect the wheel for cracks using the ring test — a damaged wheel must never be installed. Power down and lock out the grinder before changing wheels. Never exceed the rated 3,600 RPM maximum speed marked for this wheel.