Sliding Glass Patio Door Rollers

A quick learner from Illinois says:
I have a sliding glass patio door that is getting hard to open. I took the roller off and greased it but it did not help. I need two sets of the attached roller.

I forgot to measure it while I had it off. I do have the US patent number 3996643 if that helps.

If you need me to measure it let me know what measurements you need and I will get them for you.
User submitted photos of a patio door roller.
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Tom from SWISCO responded:
Good morning! Take a look at our 81-018 and let me know if this is a good fit.
A quick learner says:
I replaced the roller listed above on my lower patio door last year and it worked great, thanks for your help.

Now I have a problem with my upper patio door made by the same manufacture, I found this name inside the glass, Caradco Bendix. The problem with this door is the wood frame has started to rot on the bottom and fall apart. Is there a way to replace the bottom wood part of the frame?
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Paul from SWISCO responded:
When the weather gets warmer, remove the door and hopefully you can remove the rotted rail without issue. Take it to your nearest mill work and see if they can duplicate it with a good grade of lumber. I feel if you call a local patio door company they are going to suggest a new door, which is not ideal.
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