In need of parts

A quick learner from USA says:
In need of bottom roller assembly or at the very least the plastic roller disc who's is missing from the assembly shown in photo may also need a lower track for door I'm unable to locate any parts in this area it's an older door in otherwise good shape but I do not know the manufacturer. Any help would be much appreciated.
Thumbnail of the uploaded file named IMG_4948.JPG
Thumbnail of the uploaded file named IMG_4949.JPG
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Paul from SWISCO responded:


Take a look and compare the specifications of the parts that we've related on this page to your original bifold hardware. You can also find our bifold tracks at the bottom of the page here. Thanks for posting.  

A quick learner from USA says:
Thank you for your help. I have placed an order-for the three items needed and hope to be successful with this repair
Bi-fold Door Repairs
Bi-fold Door Repairs
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