Norton 66261138322 Psa Disc 12 in 60 Grit Zirconia Alumina

Product Description

The NORTON 66261138322 is a pressure-sensitive adhesive (PSA) abrasive disc designed for aggressive stock removal on metal, wood, and composite surfaces. Built on a Y-weight cloth backing, this disc handles high-pressure grinding and finishing applications without flexing or tearing prematurely. The zirconia alumina abrasive grain self-sharpens under load, maintaining a consistent cut rate throughout the disc life. At 60 grit, it falls in the medium range, making it well-suited for blending welds, removing mill scale, and shaping surfaces before progressing to finer grits. The disc weighs 0.2 pounds and mounts via a PSA interface for quick, tool-free changes on compatible platens.

This disc is used in industrial and fabrication environments where stationary disc sanders, backstand grinders, or large-format PSA platen machines are in service. It is a common choice for metalworking shops, millwork operations, and maintenance facilities that require a durable, cloth-backed disc capable of sustained use under load. The flexible construction allows it to conform slightly to contoured workpieces. Typical users include metal fabricators, welders, woodworkers, and maintenance technicians working with ferrous and non-ferrous materials.

Key Features

• Zirconia alumina grain self-sharpens under grinding pressure for consistent material removal
• Y-weight cloth backing provides high tear resistance under aggressive stock removal conditions
• Pressure-sensitive adhesive mount allows fast disc changes on compatible PSA platens
• 60 grit medium cut rate suited for weld blending, scale removal, and surface shaping
• Flexible construction allows slight conformance to curved or irregular workpiece profiles
• No vacuum holes — designed for solid platen use without dust extraction ports

Compatibility

Designed as a PSA-mount replacement disc for stationary disc sanders and backstand grinders equipped with 12-inch solid PSA platens.

Installation Notes

Installation is performed by trained abrasives or machine operators following equipment manufacturer guidelines. Power down and lock out the machine before removing the spent disc and cleaning the platen surface of adhesive residue. Press the new disc firmly from center to edge to eliminate air pockets and ensure full adhesive contact before resuming operation. Inspect the disc for damage before each use and do not exceed the maximum operating speed rated for the machine platen.