Hi-
I have a screen door manufactured by Toro Aluminum in Canada. My screen door itself is in a condo in Mexico, and the only Toro repair rep is in Toronto and will only deliver locally in Toronto and accepts cash only. I'm hoping you will have a suitable replacement as that would be cheaper than flying to Toronto for a $3 part. Anyway, the nylon wheel is about 1 1/8" (3 cm) in diameter. I was not smart enough to measure the width of the wheel when I was there but the retangular-ish part is 1 3/8" x 1". The distance to the top of the arc on the spring is 1 3/4" from the top of the rectangle. The roller seems to be held in to the door by friction/the spring, as I was able to remove it by rotating it. The picture is the one in good shape, relatively speaking. The others all have cracked wheels.
I'm in Minnesota at the moment, but going back to Mexico in early January, hopefully with some suitable replacement parts. Many of my neighbors have the same issue so if we can identify a suitable part from you we will be ordering many more. For now, let me know if you have anything that might work and I will order a few samples to take down with me. Thanks & Happy Holidays,
Bill