Sliding door roller

Hey there!

We'd be happy to help with this. However, I'm afraid this is only the outer housing. There ought to be an inner portion that goes with it. We will need to see a complete roller assembly put together to help narrow down some options. 

Sure, so if you go to this past discussion here you will see photos of a customer's inner housing in the first batch of photos. In the second batch, the outer housing is shown still installed in the door frame. This customer's roller is different than yours so your hardware won't look the same as shown in these photos; just something to keep in mind. I hope this helps.