Europa-List: Torque tube ball bearings?

[Ronald J. Parigoris <rparigor@suffolk.lib.ny.us>]

In the past week, 2 people, 1 of which was our DAR after looking at the now
bonded in torque tube bushings asked why we are using bushings instead of ball
bearings?

Has anyone installed ball bearings on the torque tube?

Has anyone ever had the bushings wear and need replacement?

Thx.
Ron Parigoris