0221301905 - ESAB Replacement Ball Bearing SKF 6305 (25x62x17mm)

Premium Replacement Bearing for Industrial Welding Equipment

The ESAB 0221301905 is a high-quality replacement ball bearing, identified industrially as the SKF 6305. Designed to meet the rigorous demands of heavy-duty welding environments, this component is essential for the maintenance and repair of ESAB welding power sources, wire feeders, and auxiliary equipment. As a genuine spare part sourced from SKF, the world leader in rolling bearings, this unit guarantees precise tolerances, exceptional material quality, and reliable performance under load.

Technical Specifications and Geometry

The 6305 series is a single-row deep groove ball bearing, the most widely used bearing type due to its versatility and low friction. This specific unit features a 25 mm bore (inner diameter), a 62 mm outer diameter, and a 17 mm width. The deep groove geometry allows the bearing to accommodate significant radial loads as well as axial loads in both directions, making it suitable for the complex force vectors often found in electric motors and mechanical drive systems within welding machinery. The optimized internal design ensures smooth operation even at high rotational speeds.

Material and Durability

Constructed from high-grade bearing steel, the ESAB 0221301905 offers excellent fatigue strength and wear resistance. In industrial MRO (Maintenance, Repair, and Operations) contexts, using premium bearings like this SKF model is critical to preventing premature equipment failure. Inferior bearings can lead to increased vibration, heat generation, and eventual seizure, which can cause costly downtime in a production line. This bearing is engineered to maintain its structural integrity even in the harsh conditions typical of metal fabrication shops, where dust and thermal fluctuations are common.

Application in Welding Systems

Bearings in welding machines are often located in wire feed mechanisms, cooling fans, or the main inverter assembly. A failing bearing often manifests as unusual noise, vibration, or irregular wire feeding. Replacing worn components with the correct OEM-specified part, such as the ESAB 0221301905, restores the machine to its original factory specifications. This ensures that wire feed speeds remain consistent and that cooling systems operate efficiently, protecting the sensitive electronics of the welder.