Norton 66253160777 Surface Grinding Wheel 10in 60 Grit

Product Description

The NORTON 66253160777 is a Type 1 vitrified aluminum oxide surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. Measuring 10 inches in diameter, 1 inch thick, and carrying a 3-inch arbor hole, this wheel runs at a maximum rated speed of 2,485 RPM. The 60-grit, K-hardness (medium grade) specification balances aggressive material removal with surface finish quality. Vitrified bonding provides rigidity and consistent cutting action across a range of grinding applications. At 6.097 pounds, the wheel is suited for stationary surface grinder setups where controlled flatness and repeatability are required.

This wheel is formulated for use on 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. It is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The Type 1 straight-wheel profile makes it a standard fit for horizontal-spindle reciprocating surface grinders found in machine shops, tool rooms, and maintenance environments. The porous structure of the wheel aids in coolant retention and chip clearance during extended grinding passes.

Key Features

• 60 grit, K hardness (medium grade) aluminum oxide abrasive for balanced cut rate and finish
• Vitrified bond provides rigidity and open pore structure for consistent material removal
• Type 1 straight-wheel profile with no recess for standard surface and cylindrical grinder spindles
• Maximum rated speed of 2,485 RPM for safe operation on compatible machines
• Porous wheel structure supports coolant flow and chip clearance during use
• Series 32A Type 1 specification; wheel color gray; non-tapered profile

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Compatible material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator. Before mounting, inspect the wheel for cracks or chips using a ring test per ANSI B7.1 standards, and confirm the machine spindle speed does not exceed the 2,485 RPM rating marked on the wheel. Power down and lock out the grinder before mounting or removing any wheel. Use proper flanges and blotters as specified by the machine manufacturer and applicable safety standards.