[texken]

Hi Jensr, OK the flange bearing has 2 bolts to bolt to chassis. (see drawing)
from under the chassis, with 3/4 sticking threw the crane deck which turns.
Gear will be screwed around bearing, on the chassis and motor with pinion gear to swing crane.

I think the bearing will work OK, with counter weight.

So what radio should I get. 6CH should work.

TEXKEN