I found 36' steel track that I may be able to use for an upcoming production to track some doors. The track was bought before my time. I'm not sure if it was meant for a pocket door or what. I wanted to save some time by using the track, rather than building my own. I was wondering if anyone had any tips on finding the rollers. I was look for 3-4 trolley hanger. The diameter of the the wheel would have to be less than 5/8", thickness of the each wheel would be less than 1/8", and from wheel to wheel would be less than 15/16". I've checked a few hardware stores and they all carry 3/4" dia wheels. I also check out Swisco door hardware. Anyone have any suggestions?