Screen door rollers

The doors are in Costa Rica. Moms house. Told her I'd see what I could find before our next visit. They are fastened with a rivet and didn't have a rivet gun with me, so didn't remove. The wheel itself was steel, but had a rubber or nylon wrap that was dry rotted and falling apart in chunks. I also believe there was an adjustment screw accessible from side of door. It also looked like they may not have been ordinal roller assembly as only one side was fastened with a rivet. The other end wasn't fastened at all as seen in photo.