Replacement sliding door bottom rollers from a Technal door

A handy person from St. Augustine, FL says:
I have a 2004 Lagoon Catamaran. These are French built boats, which have a huge number of boats currently around the world. And many of us are having problems with the sliding doors on them. They seem to have a unique roller mechanism. And they are apparently made by "Technal". Does anyone have a good source for replacing these bottom rollers? And we could also use additional parts, such as track.

Thanks in advance for any support! John
A handy person from St. Augustine, FL says:
Pictures added for parts needed.

Thanks - John
User submitted photos of patio door rollers.
Profile picture of Paul
Paul from SWISCO responded:
Good afternoon, thank you for contacting us. We may not have the entire roller, as boat hardware is a bit tricky, but maybe you can just replace the wheels. See our 81-234 and let me know what you think. As for the track, look at our 80-102 track cover. Perhaps you can install this over the track if it's particularly worn down. See the video below for more information.
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