Norton 66252941205 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252941205 is a Type 1 surface grinding wheel engineered for precision flat grinding on ferrous and non-ferrous workpiece materials. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole, and carries a 46 grit coarse abrasive rating with an H hardness code. The wheel is constructed from aluminum oxide abrasive bonded in a vitrified bond matrix, designated by the manufacturer specification 32A46-HVBEP. This combination delivers consistent, free-cutting action during surface and cylindrical grinding operations. The wheel is rated for a maximum spindle speed of 3600 RPM. Licensed HVAC, metalworking, and toolroom technicians install and dress this type of wheel as part of routine machine maintenance and production grinding work.

This grinding wheel is suited for surface grinding applications on a range of materials including 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is designed for use on CNC cutting tool machines, cylindrical grinders, and surface grinders in both production and toolroom environments. The coarse 46 grit is selected when higher stock removal rates are needed rather than fine surface finish, making it appropriate for rough grinding passes and material breakdown in industrial and job shop settings.

Key Features

• Aluminum oxide abrasive provides durable, free-cutting performance on ferrous and non-ferrous metals
• Vitrified bond construction allows for efficient chip clearance and consistent wheel form retention
• 46 grit coarse grade suited for aggressive stock removal in surface and cylindrical grinding
• H hardness code indicates a soft-to-medium grade that releases abrasive grains before glazing occurs
• Type 1 straight wheel profile with no recess and no taper — mounts directly to standard arbor flanges
• 3600 RPM maximum operating speed rated for use on common surface grinder spindle configurations

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Fits 1-1/4 inch arbor bore spindles.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified personnel following ANSI B11.9 and OSHA 29 CFR 1910.215 safety standards for abrasive wheel machinery. Always shut down and de-energize the grinder and allow the spindle to come to a complete stop before removing or mounting a wheel. Inspect the wheel for cracks or damage using a ring test before mounting, and never operate above the rated maximum RPM stamped on the wheel or packaging. A proper wheel guard must be in place before the machine is powered on.