The Samsung DC97-21488A Washer Drum Flange Shaft Assembly supports stable drum rotation and proper movement within compatible washing machines. This assembly connects the inner wash drum to the drive system, allowing the drum to rotate smoothly during wash and spin cycles. It operates by transferring motor-driven motion through the shaft and flange structure, helping maintain balanced drum performance under regular operating conditions. Installed at the rear section of the inner drum, the assembly integrates with the bearing and support components inside the washer cabinet. By supporting correct drum alignment and reducing excess vibration, this part assists in consistent washing operations and helps minimize strain on other connected washer elements during repeated use.