3M 7100030184 Rubber Slotted Expander Wheel 5x3.5in

Product Description

The 3M 7100030184 is an internally slotted rubber expander wheel designed for use with abrasive and surface conditioning belts in metal finishing applications. The rubber drum expands outward with centrifugal force during operation, maintaining consistent tension on the abrasive belt without manual adjustment. The wheel measures 5 inches in diameter by 3.5 inches wide and features a 1 inch arbor hole. A 0.25 inch radius edge profile is built into the wheel to reduce the risk of edge cuts on workpieces. Licensed HVAC, metalworking, and finishing trades use this wheel for controlled, straight-line scratch patterns on stainless steel and other metals.

This expander wheel is intended for use with 3M Inline Sanders (PN28338 and PN28339) and the 3M Match Finish Sander (PN28659). It is compatible with 3.5 inch x 15.5 inch 3M Coated Abrasive belts and 3M Surface Conditioning belts. Typical applications include straight-line finishing of stainless steel panels, fabricated metal components, and similar flat or slightly contoured metal surfaces in both shop and field environments. It is sold as a single unit.

Key Features

• Internally slotted rubber drum expands with centrifugal force to keep abrasive belts under consistent tension
• 0.25 inch edge radius reduces risk of edge cuts on finished workpieces
• 5 inch diameter by 3.5 inch wide profile for straight-line scratch finishing
• 1 inch arbor hole for secure mounting to compatible sander platforms
• Compatible with both coated abrasive belts and surface conditioning belts sized 3.5 inches x 15.5 inches
• Generates controlled straight-line scratches suited for stainless steel and other metal finishing

Compatibility

Designed for use with 3M Inline Sanders PN28338 and PN28339 (requires 3M Wheel Adaptor Kit PN45038) and the 3M Match Finish Sander PN28659 (requires Adapter PN28719). Accepts 3M Coated Abrasive belts and 3M Surface Conditioning belts in 3.5 inches x 15.5 inches.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive tool safety practices. Disconnect and de-energize the sander before mounting or removing the expander wheel. Verify that the correct adapter kit is on hand before attempting to mount this wheel to the intended sander model, as direct mounting without the appropriate adapter is not supported. Confirm belt size matches the 3.5 inch x 15.5 inch specification before tensioning.

Technical Specifications

• Wheel Diameter: 5 inches
• Wheel Width: 3.5 inches
• Arbor Hole Diameter: 1 inch
• Edge Radius: 0.25 inch
• Compatible Belt Size: 3.5 inches x 15.5 inches
• Weight: 2.69 pounds
• Sold As: Each
• UPC: 00051141287188

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100030184