W4017216 - 0.052 Inch V-Knurled Drive Roll Kit (Set of 2)

Precision Wire Feeding for Cored Applications

The Lincoln Electric W4017216 Feed Roll Set is an essential component for industrial welding operations utilizing 0.052-inch flux-cored or metal-cored wires. In high-deposition welding, the stability of the arc is directly correlated to the consistency of the wire feed speed. Slippage at the drive rolls can cause arc stuttering, burn-backs, and inconsistent weld bead profiles. This drive roll set addresses these issues through its specialized V-Knurled (VK) groove geometry.

Unlike smooth V-grooves used for solid wires, which rely on friction generated by high tension, the VK groove features teeth that bite gently into the surface of the wire. This mechanical interlock allows for positive feeding with significantly less drive roll tension. This is critical for tubular wires (flux-cored and metal-cored), which are structurally softer than solid wires and prone to crushing or deformation under high pressure. By maintaining the wire's roundness and ensuring positive traction, these rolls facilitate smooth travel through the liner and contact tip, reducing wear and improving electrical conductivity.

Manufactured from hardened steel, these rolls are designed to withstand the abrasive nature of knurled feeding and the rigors of industrial environments. The set includes two matched rolls to ensure balanced torque transmission in dual-drive systems, further enhancing feed reliability. Whether for heavy fabrication, structural steel, or shipbuilding, the W4017216 set ensures your wire feeder operates at peak efficiency.