[Dillon Carey]

Al,
If there is another bearing on the vertical tube then I would probably be ok with the amount of support this module has.

Gary,
As long as you set it up right you can get away without supporting the bottom of the module. I would only try this with a relatively short module, due to the decreased lever arm. Wildstang has steered away from this because they put the motor and gearbox in the module, due to this there module's are relatively tall compared to a co-axial module.

This is the roughly the same method we used this year, only we still had a delrin ring on the bottom for extreme side loads, since this year involved a lot of force on the wheels when hitting the bump, and instead of 2 bearings we used 1 needle roller bearing on the vertical shaft. This worked extremely well.
Most of the time the delrin disk at the bottom didn't even do anything and under normal playing conditions there was very little turning friction.

Also what language did you program your swerve in?