sliding screen patio door---new rollers needed

A quick learner from Iowa says:
August 30, 2023
Screen door and rollers are c.30 years old.
Rollers are metal, and probably need replacing.
No numbers or markings on rollers.
Rollers are c. 1/8 inch thick and exactly 1 inch in diameter.
Photos included.
Can't see any like ours on your site, but willing to experiment with a
substitute if you can suggest one.
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Emily from SWISCO responded:
August 31, 2023

Hello!

Take a look at our 84-002M roller. This looks like it may be what you need. Review the specifications and see what you think. 

Alternate image for 84-002M
Alternate image for 84-002M
A quick learner from Iowa says:
September 6, 2023
The 84-002M roller looks correct.
Thank you!
The next question is: "how many to get?"
Is it a principle that all four must be replaced, or only the bottom two which get the most wear? (I have not extracted the two top rollers.)
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Emily from SWISCO responded:
September 7, 2023

We always suggest replacing all of them but the choice is ultimately yours. Odds are you can replace just one and not notice a difference. However, why risk an uneven operation? You may as well replace them all so you know for sure that everything is working optimally. 
A quick learner from Iowa says:
September 7, 2023
Thanks much.
I will order 4 rollers.
Really appreciate your help!
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Emily from SWISCO responded:
September 7, 2023

I'm happy I could help! We really appreciate your business as well. Please let me know if you need anything else and good luck with the repair!
A quick learner from Iowa says:
September 7, 2023
You work at a terrific company.
Thanks! May you and it live long.
Rocker Roller, 1" Steel BB Wheel
Rocker Roller, 1" Steel BB Wheel
84-002M
$2.97
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