Norton 66252942305 Surface Grinding Wheel 7in 46 Grit

Product Description

The NORTON 66252942305 is a Type 1 surface grinding wheel engineered for aggressive stock removal on hard ferrous materials. Built with a ceramic abrasive grain and vitrified bond, it delivers consistent cut rates and long wheel life on demanding applications. The 46 grit, K hardness (coarse grade, medium hardness rating) combination suits roughing passes where fast material removal matters more than fine finish. At 7 inches in diameter and rated to 3600 RPM, this wheel is sized for standard surface and cylindrical grinder spindles. Licensed HVAC, tool room, and maintenance shop technicians who grind hardened steel components will find the semi-friable ceramic grain self-sharpening under load.

This wheel is specified for use on 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. It is designed for use on CNC cutting tool machines, cylindrical grinders, and surface grinders. The 1-1/4 inch arbor hole and no-recess, no-taper profile allow straightforward mounting on standard spindle arbors without adapter hardware in most setups. The blue wheel color is characteristic of the 5SG ceramic series. Applications typically found in tool rooms, fabrication shops, and precision maintenance environments are where this wheel performs best.

Key Features

• Ceramic abrasive grain with vitrified bond for free-cutting, consistent performance on hard metals
• 46 grit coarse grade for high stock removal rates on roughing operations
• K hardness (medium) rating balances wheel life with grain release on tough alloys
• Semi-friable grain construction allows self-sharpening under normal grinding pressure
• Type 1 flat wheel profile with no recess and no taper for straightforward arbor mounting
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron workpieces. Series designation is 5SG Type 1 with specification code 5SG46-KVS.

Installation Notes

Grinding wheel installation and dressing must be performed by qualified personnel following ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before changing wheels. Never exceed the 3600 RPM maximum speed marked on the wheel, and always use appropriate wheel guards, eye protection, and face shields during operation.