Patio slider roller

Thanks for reaching out to us. I unfortunately don't recognize this roller off hand. Would you happen to know the name of the door manufacturer? Can you also provide written dimensions for this part? I am specifically interested in the height and width of the housing, as well as the diameter of the wheel. 

Hopefully those details will help me track this down. I can't guarantee that we'll be able to get a hold of this, but I will do my best!