planetary gear train

planetary gear train
an assembly of meshed gears consisting of a central (sun) gear, a coaxial internal gear-wheel and one or more intermediate pinions supported on a revolving carrier

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  • planetary gear — noun an outer gear that revolves about a central sun gear of an epicyclic train • Syn: ↑epicyclic gear, ↑planet wheel, ↑planet gear • Hypernyms: ↑gear, ↑gear wheel, ↑geared wheel, ↑cogwheel …   Useful english dictionary

  • member of the gear train — sun gear, internal gear, and planet carrier are the members of a planetary gear train …   Dictionary of automotive terms

  • epicyclic gear train — noun a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis • Syn: ↑epicyclic train • Hypernyms: ↑gearing, ↑gear, ↑geartrain, ↑power train, ↑train • Par …   Useful english dictionary

  • planetary — /plan i ter ee/, adj. 1. of, pertaining to, or resembling a planet or the planets. 2. wandering; erratic. 3. terrestrial; global. 4. Mach. noting or pertaining to an epicyclic gear train in which a sun gear is linked to one or more planet gears… …   Universalium

  • gear — Wheel like part with teeth cut into the rim. When one gear meshes with another gear, it causes the second gear to drive the other and in this way transmits power. When the gears are different sizes (different number of teeth on each gear) the… …   Dictionary of automotive terms

  • Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… …   Wikipedia

  • planetary — plan•e•tar•y [[t]ˈplæn ɪˌtɛr i[/t]] adj. n. pl. tar•ies. adj. 1) astron. of, pertaining to, or resembling a planet or the planets 2) wandering; erratic 3) terrestrial; global 4) mac an epicyclic gear train in which a sun gear is linked to one or… …   From formal English to slang

  • planetary — adjective Date: 1607 1. a. of, relating to, being, or resembling a planet b. erratic, wandering c. having a motion like that of a planet < planetary electrons > d. immense < the scope of this project has reached planetary proportions > 2 …   New Collegiate Dictionary

  • Hub gear — Sturmey Archer SX3 A Sturmey Archer AM bicycle hub gear mechanism wi …   Wikipedia

  • Wheel train (horology) — In horology, a wheel train (or just train) is the gear train of a mechanical watch or clock.[1] Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their… …   Wikipedia

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