tilting-bearing-bottom is part of:
    80%  tilting-bearing
    56%  hinge  (indirectly)

tilting-bearing-bottom contains:

Full expansion for tilting-bearing-bottom:
   100%  1x2 Tilting-Bearing-Hinge Bottom
    50%  1x2 Tilting-Bearing Hinge
    40%  6x6x1 Octagonal Hinging Dome Porthole
    30%  3x6 Tilting-Bearing-Hinge Bottom/Plow
    30%  6x6x3.3 Sloped Hingeable Cockpit
    10%  6x6x2 Oct. Dome w/Hinge