995944 - ESAB ST-23A Pressure Roll Assembly Replacement

Technical Overview of the ESAB 995944 Pressure Roll Assembly

The ESAB 995944 is a specialized Pressure Roll Assembly designed exclusively for the ST-23A series wire feeders. In a friction-based wire feed system, the pressure roll acts as the idler component that applies the necessary normal force against the welding wire and the driven roll. This assembly is critical for maintaining the coefficient of friction required to push the wire through the liner and contact tip without slippage or deformation.

Over time, the bearings, surface finish, or tensioning mechanism of a pressure roll assembly can degrade due to mechanical wear and environmental contaminants found in industrial welding settings. A compromised pressure roll often leads to erratic wire feed speeds, arc instability, and increased spatter. This OEM replacement part ensures that the geometric alignment and pressure distribution match the original engineering specifications of the ST-23A feeder.

Installation of the 995944 restores the mechanical integrity of the feed head. It is manufactured to ESAB's precise tolerances, ensuring it mates correctly with the feeder's tension arm and drive rolls. This component is essential for maintenance and repair operations focused on extending the service life of legacy ESAB and L-Tec wire feeding equipment.