0193733102 - ESAB Steel Stop Ring DIN 705 for 12mm Shafts

Precision Engineering with the ESAB Stop Ring DIN 705

The ESAB Stop Ring (SKU: 0193733102) is a critical mechanical component designed to meet the rigorous DIN 705 standard. In the realm of industrial machinery and welding equipment, the integrity of every small part dictates the overall reliability of the system. This specific stop ring, also known as a set collar, is engineered to provide secure axial positioning of components on a shaft. It is manufactured from high-grade steel, ensuring it can withstand the mechanical loads and vibrations inherent in heavy-duty welding operations.

The designation "D12" indicates that this collar is precision-bored to fit a 12mm diameter shaft. This is a common size for drive shafts, wire feed spindles, and other rotating assemblies within ESAB welding power sources and wire feeders. The "6X8" specification refers to the accompanying set screw, which is an M6 thread with an 8mm length. This set screw is essential for locking the ring in place; when tightened, it bites into the shaft (or a flat on the shaft), preventing the ring from sliding laterally. This simple yet effective mechanism is vital for maintaining the alignment of gears, pulleys, or bearings.

Adhering to the DIN 705 standard means this part is not a generic hardware store replacement but a component built to specific tolerances regarding concentricity, surface finish, and material hardness. For industrial maintenance professionals and MRO specialists, using a DIN-compliant part ensures that the replacement will fit exactly as the original did, without the need for modification or the risk of premature failure. Whether used in a wire feed unit to retain drive rolls or in the internal gearing of a power source, this steel stop ring provides the reliability expected from ESAB engineering.

Installation is straightforward but requires attention to detail. The bore should be clean and free of burrs before sliding the ring onto the 12mm shaft. The M6 set screw should be torqued appropriately to ensure a firm grip without damaging the shaft surface. As a genuine ESAB spare part, it guarantees compatibility and performance, reducing downtime and maintenance frequency in professional welding environments.