Mirrored closet door
No markings found.
The part you popped out is just the inside portion of the roller assembly. In order to ID a match, we need to see the whole assembly, which includes the outer housing. Let me know if that's something you can get for us.
I'm not able to ID this either. We really need to see the outer housing out of the door. Too many important details are obscured; these rollers all kind of look the same while they're installed. You could consider our 23-288 roller to see if this could be the one you are looking for, but it is just an educated guess.
That doesn't necessarily mean that the 23-288 won't work for you but, as Dave mentioned, all we can do is make educated guesses until we can see the entire housing removed from the door with dimensions to compare to our inventory.
I am thinking of ordering one just to see if it works.
Steel wheels versus nylon wheels is always a tradeoff. Nylon wheels are kinder to the track but tend to break earlier, especially since mirror doors are so heavy. Steel wheels can be a little rougher on tracks, but they last a lot longer.
Either way, we do not have a version of this roller with a nylon wheel. We do sell a couple nylon wheels separately that you can use. See our 81-228, 81-236, 81-237, and 81-116. We also sell the 81-310 axle set.