3M 7000139084 Abrasive Belt 18x3/4 Inch 36 Grit Alumina Zirconia

Product Description

The 3M 7000139084 is a coated abrasive belt built around alumina zirconia grain and a heavyweight polyester cloth backing. Alumina zirconia cuts faster and more aggressively than standard aluminum oxide, making it a practical choice for high-production grinding, blending, and edge work. The grain includes a grinding aid that reduces heat buildup during use, which matters when working on heat-sensitive metals such as aluminum and stainless steel. The water-resistant polyester backing holds up under high contact pressure and lateral stress at belt edges. This belt measures 18 inches long by 3/4 inch wide and runs at 36 grit. It is used by metalworkers, fabricators, and maintenance technicians who need consistent stock removal across demanding substrates.

This belt is suited for portable and stationary belt grinders used in metal fabrication, weld blending, and surface conditioning tasks. The 36-grit cut is appropriate for aggressive stock removal and initial surface prep on ferrous and non-ferrous metals. Its cool-running mineral combination makes it especially practical on aluminum and stainless steel, where heat from friction can cause discoloration or work hardening. The heavyweight cloth backing performs reliably in high-production operations where belt flex and edge wear are common failure points.

Key Features

• Alumina zirconia abrasive grain with grinding aid delivers faster cutting than aluminum oxide
• Runs cool, reducing heat damage risk on aluminum and stainless steel
• Heavyweight, water-resistant polyester cloth backing withstands high-pressure applications and edge work
• 36 grit for aggressive stock removal and surface prep
• Coated construction provides consistent grain distribution across the belt surface

Compatibility

Designed for use on portable and stationary belt grinders accepting 18 inch by 3/4 inch abrasive belts. Suitable for ferrous and non-ferrous metals including aluminum and stainless steel.

Installation Notes

Install on belt grinders sized to accept an 18 inch by 3/4 inch belt, ensuring the tracking tension is set per the grinder manufacturer guidelines before operation. Confirm belt direction arrows align with the grinder drive direction before powering on. Inspect the belt for tears or edge fraying before each use. Always wear appropriate PPE including eye protection and gloves when operating abrasive belt equipment.

Technical Specifications

• Belt Length: 18 inches
• Belt Width: 3/4 inch
• Grit: 36
• Abrasive Mineral: Alumina Zirconia
• Backing Type: Heavyweight Water-Resistant Polyester Cloth
• Construction: Coated
• Color: Green
• Weight: 8.675 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000139084