Norton 66253160400 Surface Grinding Wheel 46 Grit 10in

Product Description

The NORTON 66253160400 is a Type 1 surface grinding wheel engineered for demanding material removal on hard ferrous metals and specialty alloys. Built around a ceramic abrasive grain bonded in a vitrified matrix, this wheel delivers consistent cut rates and long wheel life under both wet and dry operating conditions. At 10 inches in diameter, 1 inch thick, with a 3-inch arbor hole, it seats securely on standard surface and cylindrical grinder spindles. The 46-grit coarse grade removes stock aggressively, while the I hardness code and semi-friable grain structure help the wheel self-dress to maintain sharp cutting edges throughout the grind cycle. Rated to 2485 RPM. Weight is 5.6 pounds.

This wheel is suited for production and toolroom grinding of 400 series stainless steel, hard carbon steels, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Typical install scenarios include surface grinders and CNC cutting tool machines where a coarse, free-cutting ceramic wheel is needed to efficiently flatten, square, or reduce hard workpieces. The porous, vitrified bond structure promotes coolant flow to the work zone, reducing heat buildup on heat-sensitive materials such as tool steels and titanium.

Key Features

• Ceramic abrasive grain with semi-friable structure for consistent self-dressing and extended wheel life
• Vitrified bond with porous structure promotes coolant penetration and reduces grinding heat
• 46-grit coarse grade for aggressive stock removal on hard metals
• I hardness (medium) balances wheel wear against workpiece hardness across a broad material range
• Rated for both wet and dry operation at up to 2485 RPM
• Type 1 flat wheel profile with no recess, compatible with straight-wheel 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, tool steels, titanium, super alloys, cast iron, ductile iron, and gray iron. Series designation 5SG Type 1, specification 5SG46-IVS.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding technician following ANSI B11.9 and OSHA 1910.215 standards for abrasive wheel machinery. Always inspect the wheel for cracks or chips before mounting and perform a ring test on vitrified wheels. Confirm the machine spindle speed does not exceed the 2485 RPM rating marked on the wheel before powering on. Never exceed the rated RPM, and always use the appropriate flanges and blotters when securing the wheel to the arbor.