Quote Originally Posted by IC2
Go to McMaster-Carr and type in bushings. According to their website, they have 2518 DIFFERENT variations (sleeve bearings):

http://www.mcmaster.com/

ID's from .125" to 3.00" and OD's from .250 to 4.00"
Thanks for the source Dave. It looks like if they don't have it, you don't need it.