sun gear

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Related to sun gear: planetary gear

sun′ gear`

(in an epicyclic train) the central gear around which the planet gears revolve.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sun gear - the central gear in 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
References in periodicals archive ?
The sun gear of the planetary gear is connected to a small motor while the ring gear connected to a larger driving motor.
Control in such devices is realised by means of a sun gear, which rotates the hydraulic pump of a closed hydraulic system through a gear train and pumps the liquid in it with a certain angular velocity of the control link.
Limited Tenders are invited for Ist & 2Nd Stage Planet Assembly Consists Of Sun Gear
We wish to remind everyone to bring sun gear, like umbrellas, sunglasses and hats due to the hot weather.
A PG shown in Figure 1 is a mechanical device, which has four rotating elements called the sun gear, the planet gears along with their carrier, and the ring gear.
Moreover, the meshing frequency component of the ring gear was found to be pure sound noise due to its high inertia and rotational stability, and that of the sun gear was found to be mixed sound noise with side bands due to its low inertia and rotational instability.
m12] of planet gear and sun gear are also clearly described in Figure 21.
This is much simpler than using a mechanical planetary system where the speed of the sun gear must be controlled.
The products' design also features single piece carrier plates with integral gear posts and sun gear that can be arranged as needed to achieve the desired reduction ratio, and a 416 stainless steel output shaft as well as a sintered metal output bearing to protect against corrosion.
It consists of a sun gear, three planetary gears attached to a carrier and a ring gear.
29 mm/s at synchronous frequency 25 Hz, the sun gear rotation frequency 187 Hz vibration velocity amplitude is low 0.