Norton 78072750136 Abrasive Belt 40 Grit 3x132 Inches

Product Description

The NORTON 78072750136 is a coated abrasive belt designed for aggressive material removal on metal, weld seams, and fabricated components. Running at 40 grit, this belt falls in the coarse grade range, making it well-suited for stock removal, deburring, and weld blending rather than finishing passes. The abrasive material is zirconia alumina, a tough, self-sharpening grain that holds up under high pressure and heat better than standard aluminum oxide. The belt measures 3 inches wide by 132 inches long and is backed by a heavy-duty Y-weight polyester cloth, which resists tearing and stretching under tension on both stationary and portable belt grinders.

This belt is used in metal fabrication shops, pipe and structural welding operations, and general industrial grinding applications. The closed-coat construction keeps abrasive grain density high across the full belt face, maximizing cut rate on ferrous and non-ferrous metals. The R884P series designation indicates a resin-bonded construction built for demanding wet or dry operation. Wet grinding setups benefit from coolant compatibility, while dry operation suits shops without fluid delivery systems. Fabricators, ironworkers, and industrial maintenance techs are the primary installers and users of this belt.

Key Features

• Zirconia alumina grain for high cut rate and extended belt life under heavy load
• 40 grit coarse grade suited for rapid stock removal and weld blending
• Y-weight polyester cloth backing resists stretch and tearing under belt tension
• Closed-coat construction maximizes grain coverage for aggressive material removal
• Compatible with wet or dry grinding operations
• 3 inches x 132 inches size fits a range of stationary and portable belt grinder platforms

Compatibility

Designed as a replacement or service stock abrasive belt for belt grinders and sanders accepting a 3-inch by 132-inch endless belt configuration. Confirm machine platen and drive wheel sizing before installation.

Installation Notes

Installation should be performed by qualified fabrication or maintenance personnel. Power down and lock out the belt grinder before removing the worn belt or installing a new one. Verify belt tracking direction — most zirconia alumina belts have a recommended run direction marked on the backing. Inspect the contact wheel, platen, and tension rollers for wear or damage before mounting a new belt.