KP1890-2 - Lincoln Electric Tiny Twin Side Drive Roll for 5/64-3/32 Wire

Precision Wire Feeding with Lincoln Electric KP1890-2

The Lincoln Electric KP1890-2 Drive Roll Side is an essential component for professional welders utilizing the Tiny Twin wire feeding mechanism. This specialized drive roll is engineered to facilitate the smooth transfer of welding wire from the spool to the welding gun, a critical process for maintaining arc stability and weld pool control. Designed specifically for heavier gauge wires, this roll supports diameters of 5/64 inch (2.0 mm) and 3/32 inch (2.4 mm), making it ideal for high-deposition welding applications.

Wire feeding issues are among the most common causes of downtime in MIG and flux-cored welding. A drive roll that is worn or incorrect for the wire size can cause slippage, shaving, or deformation of the wire. The KP1890-2 features a precision-machined groove that matches the specific radius of 5/64" and 3/32" wires. This ensures maximum surface contact area for traction while minimizing the crushing force that can flatten flux-cored wires or damage the copper coating on solid wires. The result is a consistent wire feed speed that allows the power source to maintain a steady voltage and amperage output.

Constructed from hardened industrial-grade steel, the KP1890-2 is built to withstand the abrasive nature of welding wire and the mechanical stress of continuous operation. It is designed as a "Side" roll for the Tiny Twin assembly, working in harmony with the feeder's gear system to provide balanced torque. Installation is straightforward, allowing maintenance personnel or operators to quickly swap out worn components and minimize machine downtime.

Investing in genuine Lincoln Electric replacement parts ensures that your equipment operates within its specified parameters. The KP1890-2 not only extends the life of your liner and contact tip by feeding clean, undeformed wire but also contributes to the overall reliability of your welding system. Keep your Tiny Twin feeder running at optimal efficiency with this high-performance drive roll.