The foldable power harrow has the same heavy-duty self-supporting trough design as used on the mounted models and is equipped with the same robust conical bearings and hardened gears. In order to give the NG-S 101 F35 the strongest design and to enable it to withstand the toughest of conditions the upper half of the trough as well as the trough base is made from 10 mm steel plate. The welded conical bearing housings give highest strength to the overall trough.