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The Miller 251485 Roll, Drive Idler Polished U-Groove 3/64 is an essential consumable for professional welders working with aluminum. Aluminum wire is significantly softer than steel or stainless steel, making it prone to deformation and shaving if fed through improper drive rolls. This idler roll utilizes a polished U-groove design, which distributes pressure evenly around the wire circumference. This geometry ensures positive feeding traction while maintaining the integrity of the wire surface.
Designed for use with 3/64-inch (1.2 mm) wire, this roll is a direct replacement for the idler (pressure) side of the feed mechanism in Miller XR-Aluma-Pro™ and XR™-Pistol-Pro push-pull guns. Using the correct drive roll size and type is critical for preventing "bird-nesting" and liner clogging caused by aluminum shavings. The polished finish further reduces friction, allowing the wire to glide smoothly through the gun assembly.
Maintenance of your wire feeding system is key to high-productivity welding. Inspecting and replacing worn drive rolls ensures that your expensive welding power source and gun deliver the performance you expect. This package contains one single idler roll, ready to be installed to restore your gun's feeding capability to factory specifications.
| Additional Information |
|---|
| Brand:Miller |
| Wire Size:3/64" |
| Wire Type:Aluminum |
| Fits Which Model:Miller XR Aluma-Pro |
| Packaging Description:1 Per Ea |
| Groove Type:Polished U-Groove |
| Component Type:Idler Roll |
| Material:Steel (Polished) |
