Need new sliding door wheel

A handy person from New York says:
Hi, the attached photos and info are for a slinging door wheel that belongs to a "four seasons greenhouse" that I have attached to my house. The wheels do not work anymore and I need two new ones. Please let me know if you need any additional info.

Width at widest part - 19cm,3/4 in
Height - 38 cm, 1 1/2 in
Wheel diameter - 37 cm, 1 7/16 in
It has one wheel which is made of metal.
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Thumbnail of the uploaded file named IMG_6901.jpeg
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Emily from SWISCO responded:

Thank you for reaching out to us. Your roller looks very close in design and in size to the 81-289. Review the specifications below and see what you think. 

Detail of 81-289
Detail of 81-289

Alternate view of 81-289
Alternate view of 81-289

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