Hey there,
Thanks for writing in! We do not carry an exact replacement for this closet door roller, unfortunately. There is a chance that we can supply you with the replacements you need, but I'll need a bit more information to confirm. I cannot make any guarantees that we will be able to supply you with a suitable replacement but I am happy to take a look into this for you.
To start, would you happen to know who the manufacturer of this roller is? Also, may I see a photo of what the roller looks like installed to the door?
Please feel free to reach out with any questions you might have in the meantime.
Thanks for confirming this information. We believe you may be able to use either the 23-056 or the 23-067. These rollers do not have the same mounting brackets like yours, but they do have the 1" diameter wheel. I cannot make any guarantees that they will work but take a look over the dimensions and design on the diagrams below. See if you think you could adapt them to your closet door.
It might be best to replace the complete track set with one of our track kits. They each come with the same components but are available in different lengths; 4ft (23-500), 5ft (23-501), and 6ft (23-502).