Heavy duty sliding door rollers

A quick learner from USA says:
I want the heaviest duty wheels for a 2.5' x 7' sliding glass door. Can the double roller stainless be used in place of a single wheel style
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Tom from SWISCO responded:
It would depend on a lot of factors. Is there any way we can see the rollers you have now? Could you also provide dimensions? That will be the best place to start.
A home owner from Bakersfield says:
Current wheels are fabricated by door manufacturer, Champion Windows. Each unit has two wheels and each door has two units.

4.25" L x 1.25" H (Including protruding wheels)
Secured with two bolts through the side of the door frame

Any suggestions on a replacement match
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Tom from SWISCO responded:
Is there any way you can show us pictures? Based on your description, it sounds like it could be something like our 81-117, but there's no way to know for sure without seeing it.
A quick learner from bakersfield CA says:
Width is 11/16"
User submitted photo of their door hardware.
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Tom from SWISCO responded:
Aha, I see. Please look at our 81-158, this looks to be a good match. Just make sure that your dimensions are the same as ours. As for a heavier duty version, I'm not sure they make one. I'm also not sure what single wheel style roller it is you're referring to, so I can't say for sure if this will work for that. However, based on the pictures you submitted, our 81-158 appears to be our best match.
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