3M 7000121939 Non-woven Belt 15.5x3.5 in Aluminum Oxide

Product Description

The 3M 7000121939 is a non-woven surface conditioning abrasive belt designed for one-step workpiece preparation ahead of final finishes and coatings. Built on FE material with an Aluminum Oxide abrasive, it delivers high initial and extended cut rates under high contact pressure. Measuring 15.5 inches in length and 3.5 inches in width, this belt is engineered for professionals doing deburring, blending, and edgework on ferrous metals, stainless steel, and high nickel and chrome alloys. The open-web, non-woven construction resists heat buildup, maintains a consistent cut rate throughout the belt's life, and minimizes gouging on finished surfaces.

This belt is suited for industrial and fabrication environments where flat and edge surface conditioning is a routine part of the workflow. It performs at its best in applications that demand high contact pressure and meaningful stock removal in a single pass. Typical users include metal fabricators, weld finishers, and maintenance machinists who need reliable, repeatable results on ferrous and high-alloy workpieces. Its low-stretch characteristics make it a stable choice for precision edgework on belt grinders and finishing machines.

Key Features

• Aluminum Oxide abrasive on FE material for high initial and extended cut rate
• Non-woven construction provides heat resistance, flexibility, and consistent performance across belt life
• Open web conforms to surface irregularities and reduces gouging risk
• High edge durability suited for demanding edgework and deburring tasks
• Designed for ferrous metals, stainless steel, and high nickel and chrome alloys
• Suitable for low-stretch applications requiring dimensional stability

Compatibility

Designed as a standard replacement non-woven abrasive belt for belt grinders and finishing machines that accept 15.5-inch by 3.5-inch belts used in metal surface conditioning applications.

Installation Notes

Installation should be performed by qualified personnel familiar with abrasive belt equipment. Power down and lock out the grinder or finishing machine before changing belts. Verify belt tracking and tension per the equipment manufacturer's guidelines before resuming operation. Inspect the belt for tears or damage prior to each use and replace immediately if any defects are found.

Technical Specifications

• Abrasive Type: Aluminum Oxide
• Construction: Non-Woven FE Material
• Belt Length: 15.5 inches
• Belt Width: 3.5 inches
• Weight: 2.95 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10
• UPC: 051115333199

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121939