3M 7100073953 Rubber Slotted Expander Wheel 3x3 in

Product Description

The 3M 7100073953 is a rubber slotted expander wheel designed to mount abrasive bands and belts for grinding and finishing applications. The wheel measures 3 inches in diameter by 3 inches wide and accepts standard 3-inch abrasive bands and belts. Its slotted rubber drum expands outward with centrifugal force as the spindle speed increases, keeping the band seated firmly and under consistent tension throughout the grind. The 5/8-11 internal thread mounts directly to tools fitted with a 5/8-11 external threaded shank. This expander wheel is the type of component installed and changed out by metal fabricators, maintenance machinists, and tool-and-die professionals.

This expander wheel is suited for use in metal fabrication shops, maintenance facilities, and industrial grinding setups where consistent band tension and reliable fitment are required. It accepts 3-inch-diameter by 3-inch-wide abrasive bands or belts and is intended for use on angle grinders, die grinders, or bench-mounted spindle tools equipped with a 5/8-11 external threaded shank. Applications include weld blending, deburring, and surface conditioning on metal workpieces.

Key Features

• Slotted rubber drum expands with centrifugal force to maintain consistent band tension during grinding
• Fits 3-inch diameter by 3-inch wide abrasive bands and belts
• 5/8-11 internal thread mates with 5/8-11 external threaded shank tools
• Designed for weld blending, deburring, and surface conditioning tasks
• Sold individually as a single unit

Compatibility

Compatible with 3-inch diameter by 3-inch wide abrasive bands and belts. Fits tools equipped with a 5/8-11 external threaded shank.

Installation Notes

Installation is performed by machinists or fabricators familiar with abrasive tooling. Before mounting or removing the expander wheel, ensure the tool is fully powered down and unplugged or locked out per applicable lockout/tagout procedures. Thread the expander wheel onto the 5/8-11 external shank and tighten securely before installing the abrasive band. Inspect the rubber drum and slotted sections for wear or cracking before each use and replace the wheel if damage is present.

Technical Specifications

• Wheel Diameter: 3 inches
• Wheel Width: 3 inches
• Thread Size: 5/8-11 Internal
• Compatible Band/Belt Size: 3 inches x 3 inches
• UPC: 00051144777228
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100073953