The roller is locked. The whole roller unit is made of metal - gold colored.
The roller itself is about 1 and 1/8" in diameter.
The door has two rollers at the bottom. One on the left and one on the right. Each roller fits into a bottom track.
A home owner from Hermosa Beach, CA says:
January 2, 2017
Hardware stores in my area carry a similar roller, only the roller is 1.25" in diameter. My roller is 1.125" in diameter. Can I use a 1.25" roller to replace the 1.125"?
Paul from SWISCO responded:
January 9, 2017
Thanks for posting. This looks very much like our 81-250, which has a 1-1/8" steel ball bearing wheel. Please compare our dimensions to yours to confirm.
A professional from CA says:
January 9, 2017
The 1/8" difference shouldn't matter unless your door has zero adjustment before it scrapes top or bottom. This would be very unusual for a closet door. The nylon or plastic rollers (23-043) are much more important to keep from wearing down your track with metal wheels.