There are no markings or numbers
Thanks for your post! Our 81-056 Patio Sliding Glass Door Roller comes to mind for a replacement match. Take a look at the diagram below. Double check the dimensions to determine if this is the right fit for your repairs.
Thanks!
Hello,
The 81-056 housing is available with the 1-1/4" or 1" wheel. We do not have an option with a 1-1/8" wheel, but the housing is adjustable so you should be able to make up the difference if using the 1" option.
If there is an issue, we also carry the 81-223 1-1/8" separately that can be switched out with the 81-310 axle repair kit. You could also consider this route if your original housing is still in good shape.
Let me know if you have any additional questions!
No problem! Please let us know if you have any future hardware questions.