Has anybody tried using Nylon Linear Plain Bearings for a router table or anything like it? McMaster has 3/4" ID bearings for 5.69$. Not bad compared to linear ball bearings.
The shafting isn't way out of line either. The hardened precision stuff is 46.38$ for 48", and the generic bar is 29.44$ for chrome plated or 33.00$ for nitride coating.
Any merit in running a real hardened or precision shaft?