BA123 Replacement Casters - Suitable substitute found

The BA123 casters have a rubber lining on either side of the caster; I had the same deterioration on my BA123's. . . except I didn't find out until I had rolled one over a section of carpet in the house. (That was fun to clean up. . . . not !) Presumably, the rubber is for vibration deadening. Since I didn't have a convenient source for them at the time, I opted to make them less messy. I just took a small flat-blade screwdriver, and cored the rubber out from both sides of each caster. Since it was already "leaking" out Once the rubber is out, the casters are just plain ol' casters, and they roll just fine. More recently, additional research has revealed: The casters were made by Shepherd casters (www.shepherdcasters.com). I found a close replacement part - Shepherd PSF50101BK has the same mounting pattern, and diameter. Although it is a slightly different style, it should make an adequate replacement. A quick search turned up this: http://www.apollocaster.com/store/index.php?main_page=product_info&cPat… As info. . . T