Older Patio Sliding screen door Roller Replace

I removed these rollers yesterday so that I can get the screen doors to slide better. Different rollers top and bottom. I believe the top ones are the tension spring rollers (found on amazon Slide-Co 11475 Sliding Screen Door Roller, 2-Pack) I have 2 screen doors with 2of the spring rollers detached from the spring. Does Swisco have a replacement for this one?

Second ones are the bottom rollers that are attached to the bottom of the door with 2 screws. Two of those have also broken from the mounting piece. Does Swisco have a replacement for this one?

Thanks for any advice and recommendation you can make.

adding a picture of the lower corner of screen door? Are these screws adjusting screws of some kind? Thanks for any help