These closet door roller(s) pair is A Front 1 3/8 -Rear 3/4 & B Front 3/4- Rear 1 3/8. Made by Medalist mfg. Please exam. These picture of roller's are a pair A & B . I've contacted Medalist mfg in Pella,IA. by e-mail, the reply from an Alan Getting Director of Sales. Read I'm sorry not our product so we can not help you.
Medalist Closet Door Rollers




Hello,
We've dug into this brand name and couldn't find much information on it. "Medalist" is a name we've seen only a few times, years ago, and the only detail I was able to confirm is that these rollers aren't made anymore.
We had recommended at the time our 23-088 and 23-089 with 3/4" diameter wheels, which are two possibilities depending on the offset of your housing. However, two other possibilities would be the 23-009 and 23-010. Those look even look closer in style to your original parts, in my opinion.
It will ultimately be up to you; I cannot confirm either way which pair, if either, will work for your door. There's a very high probability that Medalist has been out of business for a long time. However, I think these products are definitely worth considering. Review the specifications shown on our product pages and see what you think.