Trying to identify and purchase a new roller for closet door

Mirrored closet door roller no longer runs smoothly. The metal frame of the roller housing is scraping against the track. Even though the roller unit is securely fastened to the door frame, the roller unit wobbles and sits at a slight angle (no longer aligned vertically with the door). The top part of the assembly where the adjustment screw inserts is bent and the metal is probably fatigued. I can straighten it out but it'll probably flex/bend again. Looks like I need a replacement. There are similar parts available at Home Depot, but I want to make sure that I get one that fits properly. Do you have an exact replacement or provide a link to purchase a few extra?
Thank you.