No, my balls aren't old after all...we used the ones we machined. So what I seem to have is a couple of old style mast bases and some 1.5" bearings. And two rather beaten, used oldstyle 1.25" bearings - one is usable but well worn, the other cracked and scary.

BUT....
McMaster-carr to the rescue! They have TEFLON, how kewl is that, in 1.25" just drill and install.

www.mcmaster.com

"Plastics
This product matches all of your selections.

Part Number: 9660K51
Material
Fluoropolymers
Fluoropolymer Material
Virgin Electrical Grade PTFE
Backing
Plain Back
Shape
Balls
Ball Type
Solid
Diameter
1.25"
Diameter Tolerance
±0.005"
Opaque
White
Operating Temperature Range
-328° to +500° F
Softening Point
Not Rated
Tensile Strength
Not Rated
Impact Strength
Not Rated
Tolerance
Standard
Grade
3
Hardness
Shore D: 50-65
Specifications Met
Food and Drug Administration (FDA) Compliant
Note
Sphericity is 0.005""