Originally Posted by
Lifer
I didn't realize that the 635' had HB, or Carbonite servos. I know the 485's are carbonite, and those gears are brittle and break easily. I have had multiple carbonite servos fail in high vibration environments. I wouldn't use them in anything but an electric.
I don't think those servos are recommended for models over 12#. The material used for the gears is unsuitable for larger models, and their associated higher vibration.
I use Hitec servos, but stay far away from the Karbonite gears.