Norton 78072735731 Abrasive Belt 36 Grit 2.5x48 in Zirconia Alumina

Product Description

The NORTON 78072735731 is a coated abrasive belt designed for aggressive material removal in metalworking, fabrication, and surface preparation applications. Built on a heavy Y-weight cloth backing, this belt runs on standard belt grinders and portable belt sanders. It carries a 36-grit, very coarse grade of zirconia alumina abrasive in a closed-coat configuration, which delivers consistent cut rates on steel, stainless, aluminum, and other hard metals. At 2.5 inches wide and 48 inches long, it fits a common class of stationary and handheld grinding equipment used in shops and on job sites. Dry operation is specified. The belt belongs to the R821P series from NORTON.

This belt is suited for weld seam blending, heavy stock removal, and deburring on metal workpieces. The zirconia alumina grain self-sharpens under pressure, making it productive on hard ferrous and non-ferrous metals where aluminum oxide belts dull quickly. The closed-coat density maximizes grain coverage for faster cutting action. Typical users include fabricators, pipefitters, ironworkers, and maintenance mechanics who require consistent performance across long runs at elevated pressure and heat.

Key Features

• 36 grit, very coarse grade for maximum stock removal
• Zirconia alumina abrasive self-sharpens under pressure for extended belt life
• Closed-coat construction maximizes grain density and cutting efficiency
• Heavy Y-weight cloth backing resists tearing under high-pressure grinding
• Dry operation rated — not intended for wet grinding use
• R821P series construction for consistent splice strength and tracking stability

Compatibility

Designed as a direct-fit replacement belt for belt grinders and stationary or portable belt sanders accepting a 2.5-inch by 48-inch abrasive belt in dry-operation configurations.

Installation Notes

Belt installation should be performed by a qualified operator following the equipment manufacturer's tracking and tensioning procedures. Power down and lockout the grinder before changing belts. Inspect the contact wheel and idler for wear or debris before mounting a new belt. Verify belt arrow direction matches machine rotation where directional arrows are printed on the backing.