| epicyclic train n. A system of gears in which at least one rotating gear revolves about another. |
epicyclic train
n
(Engineering / Mechanical Engineering) a cluster of gears consisting of a central gearwheel with external teeth (the sun), a coaxial gearwheel of greater diameter with internal teeth (the annulus), and one or more planetary gears engaging with both of them to provide a large gear ratio in a compact space
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  epicyclic train - a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axisgearing, geartrain, power train, gear, train - wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed; "the fool got his tie caught in the geartrain" 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 |
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