If you have the "colorhead" with condensers in it, It takes the old CP filters and colorhead is a bit of exaggeration when compared with a dichro head. The dichro heads have three dials on the front of the head.
I've never had a new one and just found some aluminum and made a filter holder to fit.
Your Beseler uses the standard 4X4 Beseler boards. Or anything that will fit.
If the gears are tight, I'd check the horizontal alignment and make sure the gears are in the same tooth on the rack. Run the head all the way up and verify this.
I've just used wax to lube the rails, furniture, auto, floor,canning what ever was on hand.
The shafts may ride in a nylon bearing and shouldn't need lube. There is a lock that may be causing some drag?