Norton 66253043565 Surface Grinding Wheel 8in 60 Grit

Product Description

The NORTON 66253043565 is a Type 1 surface grinding wheel designed for precision flat grinding on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel measures 8 inches in diameter and 3/8 inches thick with a 1-1/4 inch arbor hole. The 60 grit, K hardness (medium grade) specification makes it well suited for stock removal and intermediate finishing passes on hard and soft steels, stainless, aluminum, and cast iron. Rated at a maximum of 3600 RPM, it is installed and serviced by machinist and grinding trades in production and tool-room environments.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. Its porous, vitrified-bond construction promotes cool cutting and effective chip clearance during extended grinding cycles. Typical applications include surface grinding of 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The wheel carries the Norton series designation 32A Type 1 with specification code 32A60-KVBE, confirming its material and bond formulation for shop record-keeping and wheel-dress scheduling.

Key Features

• Aluminum oxide abrasive for reliable grinding across ferrous and non-ferrous metals
• Vitrified bond with porous structure promotes cool cutting and chip clearance
• 60 grit, K hardness (medium grade) balances stock removal with surface finish
• Type 1 straight wheel profile — no recess, no taper — simplifies mounting
• 3600 RPM maximum speed rating for safe use on standard surface and cylindrical grinders
• Gray wheel color aids visual inspection for loading or glazing during use

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. Arbor hole size of 1-1/4 inches fits standard spindle configurations for 8-inch wheel machines.

Installation Notes

Grinding wheel installation and dressing should be performed by qualified machinists or grinding technicians following ANSI B11.9 and OSHA 29 CFR 1910.215 wheel-guarding requirements. Always inspect the wheel for cracks or chips with a ring test before mounting, and never exceed the maximum RPM stamped on the wheel or listed in the wheel specification. Power down and lock out the machine before changing wheels. Use proper flanges and blotters as specified by the machine manufacturer.