yes they will work great..but just change the arrangement per foolowing thread
Would something like this work for a X axis for a plotter/PCB drill/small milling ?
Istarted to use this same design on mine but noticed the bottom bearing really allowed too much flexing for the y axis..since it does not capture the round and have any angular contact points like the upper. I eventually used a simular wheel upper and lower except v-bearing style that could be used on angle iron. a much cheaper solution and much more accurate. have a look at Joes 4x4 for an example