Norton 66252940193 Surface Grinding Wheel 46 Grit 7in

Product Description

The NORTON 66252940193 is a Type 1 surface grinding wheel engineered for demanding material removal on hard ferrous metals and specialty alloys. Built with a ceramic abrasive grain and a vitrified bond, this wheel delivers consistent cut rates and long wheel life under high stock-removal conditions. At 46 grit with an I hardness (medium) rating, it sits in the coarse grade range — suited for aggressive grinding passes where surface finish is secondary to material removal rate. The semi-friable grain continuously self-sharpens as it breaks down, maintaining cutting efficiency throughout the wheel life. Licensed HVAC, plumbing, and electrical professionals who work with hard carbon steels, stainless, or titanium components will recognize this as a production-grade consumable.

This wheel is rated for surface grinders, cylindrical grinders, and CNC cutting tool machines. The 5SG Type 1 series is specifically formulated for 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. The straight-faced Type 1 profile fits standard surface grinder spindle arbors equipped with a 1-1/4 inch bore. It is appropriate for both production shop environments and precision toolroom applications where harder, more difficult-to-grind materials are the norm.

Key Features

• Ceramic abrasive grain for high stock removal on hard and exotic alloys
• Vitrified bond provides rigid wheel structure and consistent cutting action
• 46 grit coarse grade for aggressive material removal passes
• I hardness (medium) rating maintains wheel integrity without excessive glazing
• Semi-friable grain continuously exposes fresh cutting edges during use
• Porous wheel structure aids coolant retention and chip clearance
• Maximum operating speed rated at 3600 RPM

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable material applications include 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified operator following applicable ANSI B11 and OSHA 29 CFR 1910.215 safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Ensure the machine spindle is fully de-energized and locked out before changing wheels. Never exceed the maximum operating speed of 3600 RPM marked on the wheel or its blotter.