| its even easyer use k7s brass and an imperial bearing,prob a lot cheaper
12" lenth of tube about £1 and the bearings are only at the most £1.50 ea so a cheap job if you have a way of mesuring the iner and outer I may even have some bearings you can have you only need to do one end of each. then use light oiil in the shaft and no loss of speed .
peter |