planet gear

noun

An epicyclic gear; the middle gears in a planetary gear system, spun by the central sun gear

Similar
planet wheelplanetary gearepicyclic gear
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Meanings

nounplanet gear (plural planet gears)

plural planet gears

  1. engineeringAn epicyclic gear; the middle gears in a planetary gear system, spun by the central sun gear

    Synonyms: planet wheel

Synonyms & antonyms

nounAn epicyclic gear; the middle gears in a planetary gear system, spun by the central sun gear

Similar
planet wheel

More synonyms by meaning

nounan outer gear that revolves about a central sun gear of an epicyclic train

Similar
planetary gearepicyclic gearplanet wheel
Broader
geargear wheelgeared wheel
Also see
epicyclic gearplanetary gearplanet wheel

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Dutch planeetwiel
  • planeetwielgear wheel
French planétaire
  • planétairegear wheel
Cite this entry
APA

planet gear. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/planet%20gear

MLA

“planet gear.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/planet%20gear. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “planet gear,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/planet%20gear.

Source: planet gear on Wiktionary, CC BY-SA 4.0.