Skip to Main Content
Canadian
Canadian owned and operated

KP52079-052C - Lincoln Electric .052 Knurled Drive Roll Kit for Flux-Cored Wire

Packaging: 1 Per Ea
$981.06/EA $613.16/1 Per Ea only $613.16/EASave 38%

Usually ships within 3-5 business days

OVERVIEW

Get a Grip on Your Flux-Cored Welding

If you have ever struggled with wire that slips, stutters, or birds-nests at the feeder, you know that the wrong drive rolls can ruin your day. When welding with .052" flux-cored or metal-cored wire, using standard smooth V-groove rolls is a recipe for frustration. To get them to grip, you often have to crank down the tension, which crushes the hollow wire flat. This deformed wire then drags inside the liner and makes poor contact at the tip. The Lincoln Electric KP52079-052C Drive Roll Kit solves this problem instantly. These rolls feature a rugged knurled texture—like the tread on a tire—that bites into the wire just enough to push it through the gun without crushing it.

Smooth Feeding, Better Welds

Consistency is key in welding. You can have the best machine and the steadiest hand, but if your wire feed speed is fluctuating because of slipping rolls, your bead is going to suffer. The KP52079-052C kit ensures that the wire moves at exactly the speed you set on the feeder. This is particularly important for .052" wire, which is often used for high-deposition structural work where you can't afford defects. With these knurled rolls, you can actually back off the tensioner knob. Less tension means less wear on your feeder motor, less strain on the liner, and a perfectly round wire coming out of the tip for a stable, sizzling arc.

Built for the Long Haul

Lincoln Electric doesn't cut corners on quality. These drive rolls are made from hardened steel to resist the wear and tear of a dirty shop environment. Over time, the "teeth" on cheap knurled rolls can wear down, turning them back into smooth rolls that slip. The KP52079-052C is designed to hold its edge longer, keeping your production line moving. Whether you are building heavy equipment, repairing barges, or fabricating structural steel, having the right drive rolls installed is the cheapest insurance you can buy for your weld quality. Swap out your old, worn, or incorrect rolls with this genuine Lincoln kit and feel the difference in your feed.

Additional Information
Brand:Lincoln Electric
Wire Diameter:0.052"
Roll Type:Knurled
Application:Flux-Cored Wire, Metal-Cored Wire
Compatible Feeders:Lincoln Flex Feed, LF Series
Material:Hardened Steel
Packaging Description:1 Per Ea

INCLUDED

  • (2) .052" Knurled Drive Rolls
  • Installation Instructions

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Manufacturing
  • Flux-Cored Arc Welding (FCAW)
  • Metal-Cored Arc Welding (GMAW-C)
  • Shipbuilding and Marine Repair
  • General Industrial Fabrication

FAQ

Knurled drive rolls are specifically designed for tubular wires, such as Flux-Cored (FCAW) and Metal-Cored (GMAW-C). These wires are softer and hollow, requiring the mechanical grip of the knurling to feed without the high crushing pressure used for solid wires.

No, drive rolls must match the wire diameter exactly. This kit is precision-machined for .052-inch wire. Using it on smaller wire results in slippage, and using it on larger wire can cause binding or damage to the wire.

Crushing usually happens when using smooth V-groove rolls (meant for solid wire) on cored wire. To get traction, operators over-tighten the tension. Switching to this knurled kit allows you to loosen the tension while maintaining grip.

Yes, the KP52079-052C is a genuine Lincoln Electric part, ensuring perfect fitment and compatibility with Lincoln wire feeders designed for the KP52079 series rolls.

Installation typically involves removing the retention cap or screw on the drive hub, sliding off the old rolls, and sliding on the new ones. Ensure the keyway aligns and the rolls are seated fully before replacing the cap.

Using knurled rolls on solid wire will create small indentations and shavings on the wire surface. These shavings can accumulate in the liner and contact tip, leading to clogs and poor electrical conductivity.

Typically, the KP52079-052C SKU refers to the drive roll kit itself. While some kits include guides, it is standard practice to verify if your specific feeder setup requires separate guide tubes for the .052 size.

Drive rolls should be replaced when the knurling becomes worn or clogged with debris, causing slippage. In high-production environments, they should be inspected weekly as part of preventative maintenance.