Norton 66253044629 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253044629 is a Type 1 surface grinding wheel designed for precision stock removal and finish grinding on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this 8-inch diameter, 1-inch thick wheel operates at a maximum of 3600 RPM and delivers consistent, repeatable performance across a range of materials. The 60-grit, K-hardness rating places it in the medium grade, making it well-suited for applications that balance material removal rate with surface finish quality. Licensed HVAC technicians and machinists who work with tight tolerances will recognize the 32A-series construction as a reliable shop-floor standard.

This wheel is used in surface grinding, cylindrical grinding, and CNC cutting tool machine applications. It is rated for wet operation, which helps manage heat buildup and extends wheel life during prolonged cuts. Material applications include 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The 1-1/4-inch arbor hole fits standard spindle configurations found on most bench and production surface grinders. It is a non-tapered, non-recessed Type 1 flat wheel with a gray body finish.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent cut and long wheel life
• 60 grit, K hardness (medium grade) balances stock removal with surface finish
• Rated for wet operation to control heat and extend service life
• Porous structure promotes coolant flow and chip clearance during grinding
• Compatible with multiple ferrous and non-ferrous material applications including stainless, tool steels, and cast iron
• 32A Type 1 series specification (32A60-KVBE) for traceability and consistent sourcing

Compatibility

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

Installation Notes

Wheel mounting should be performed by a qualified machine operator or toolroom technician following ANSI B7.1 safety standards for abrasive wheel use. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the machine before changing wheels. Never exceed the maximum rated speed of 3600 RPM; verify spindle speed before operation.