Patio screen roller no markings names or numbers on roller

Hi, I am wondering if you could help me with this roller that broke off of our patio screen door. I would like to replace it however I cannot seem to locate the name of patio door nor find the part that looks like the one that is broke on the internet. I appreciate your time and effort.

Hi I have no manufacture for this roller on a patio sliding screen door. Can u help me? If you do not recognize it can I purchase a generic one or do I need to buy a whole new screen door?