0219504411 - ESAB Spring Washer 31.5mm x 16mm x 1.2mm Replacement Part

Essential Maintenance Components for Welding Professionals

Keep your welding operations running smoothly with the ESAB 0219504411 Spring Washer. Designed as a direct replacement for worn or lost components in ESAB welding systems, this washer is a vital small part that prevents big problems. Whether you are rebuilding a wire feed mechanism, securing a chassis component, or performing routine maintenance, having the correct hardware is key to a successful repair.

Technical Specifications and Functionality

The D31.5 / 16 X 1.2 designation indicates a robust washer designed for substantial fastening applications. With a 16mm inner diameter, it is likely sized for M16 shafts or bolts, while the 31.5mm outer diameter provides ample bearing surface. The 1.2mm thickness offers the specific spring rate required to maintain tension without bottoming out too quickly or failing to provide adequate force. This balance is crucial for preventing "bolt relaxation," a common issue in machinery subjected to constant vibration.

Durability and Performance

Constructed from high-grade spring steel, this washer offers excellent fatigue life. Unlike standard flat washers, which serve primarily as spacers, this spring washer is an active component in the fastening system. It absorbs shock loads and maintains clamping force even when the joint undergoes thermal expansion and contraction. This makes it particularly suitable for the electrical and mechanical assemblies found in welding power sources and feeders.

Application and Installation

Correct installation of spring washers is essential for their performance. Ensure that the convex side of the washer faces the nut or bolt head (depending on the specific assembly instructions) to maximize the spring effect. Always inspect mating surfaces for damage before installation. Replacing old, flattened, or cracked washers with this new ESAB 0219504411 unit will restore the original holding power of the joint, reducing the risk of downtime caused by loose connections or mechanical failures.