axles for patio door rollers

I would like to replace the rollers on my 1989 patio door (white color, aluminum frame). No manufacturer's name is legible, just a date stamp. I did not see the dual roller assemblies on your web site, but the replacement 1 1/8 rollers (81-223) look like a good match for mine.

Which axles will work with this roller? Are they a simple press fit? Thanks.

Here is the picture. There is no hardware to secure the assembly inside the door. To remove the assembly I carefully tapped the long frame edges off of the door and slid the roller assembly out of a channel in the lower edge.

Wheel diameter measures 1 1/4 inches. I mentioned in the earlier post that it was 1 1/8, but that is wrong. Thanks