replacements rollers for sliding patio door

I am looking for a pair of replacement rollers for a sliding aluminum patio door. The assembly is all metal. It was manufactured by ACE (not the ACE Hardware chain store) and the company logo is a the word ACE inside a "globe" or "world" symbol. The wheel is 1-1/8" diameter X ~ 5/16" wide. I have attached two photos. Can you help? It looks a lot like some of the types you have on your site but not exactly the same.