Name is on pictures uploaded

Perhaps I can be of help! Take a look at the 81-126 patio roller. This one looks similar to the one in your photos. See if the dimensions match up to yours. Also take a look at the 81-023 roller. I have used this one in the past to replace rollers like yours. However you will need to remove the bottom rail on the glass door to install the 33-103 set screw. Take note you will need to use a drill and counter sink bit to install the 33-103 screw so that it lays flush in the bottom rail glass pocket.