A damaged support can affect how the basket moves and sits, particularly under a heavy load. Continuing normally can make the rack unstable or change clearances.
Understanding this situation
A small wheel is not necessarily cosmetic. Loose fragments also need to be kept out of the wash, but do not reach blindly into concealed areas to recover them.
A useful next step
Use the full model to identify the appropriate replacement and avoid overloading a damaged rack. Do not improvise a wheel or force a tilted basket into place. Describe any associated loading or cleaning change when seeking help.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.