Sliding glass doro rollers convex

A friend from united states says:
I am trying to locate 4 sliding glass patio door bottom single wheel roller assemblies for two 25 yr. old patio doors (no manufacturer name on doors). The wheel is metal and convex and is approx. 7/8" in diameter. Hopefully, you can read the measurements off the photo.

Thank you very much.
User submitted photos of a glass door roller.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting, Iris. Please see our 81-011 Capitol Patio Door Roller and see if you think this could work as a replacement for your hardware.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)