[MrForbes]

Or bronze bushings. They are commonly available with a flange. Check the bins at the local hardware store.

Also think about redesigning the bearing configuration...how about putting the bushings or bearings in the rotating part, and have the shaft supporting it. Or use a long bolt, as long as it's large enough in diameter.

The attached photo shows one of those cheap flanged ball bearings, 1/2" bore, 1-1/8" OD, pressed into a piece of red oak. The hole in the oak was made with a Forstner bit. This is something we were playing with as an idea for mounting wheels to a wood chassis robot. Good quality plywood would probably be better than hardwood.