planetary gear

(redirected from planetary wheels)
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Related to planetary wheels: planet wheel
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Noun1.planetary gear - an outer gear that revolves about a central sun gear of an epicyclic trainplanetary gear - an outer gear that revolves about a central sun gear of an epicyclic train
epicyclic gear train, epicyclic train - a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
cogwheel, gear, gear wheel, geared wheel - a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
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The frictional planetary speed reducer/multiplier as technical problem for the use in this paper one can define through the planetary reducer classical structure consisting of the following elements (E): E1--central "sunny" wheel; E2--planet wheels (runners); E3--the planetary wheels carrier device; E4--casing wheel (in most planetary reducers part of reducer housing); E5--planet wheels bearing assembly; E6--central wheel shaft; E7--planet wheels carrier shaft; E8--central wheel shaft bearing assembly; E9--planet wheels carrier shaft bearing assembly; E10--housing.