epicyclic gear train

1. A system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis (synset 103297647)
   is a type of: gear, gearing, geartrain, power train, train - wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed
   has:

   • epicyclic gear, planet gear, planet wheel, planetary gear - an outer gear that revolves about a central sun gear of an epicyclic train
   • sun gear - the central gear in an epicyclic train
   same as: epicyclic train

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