planetary gear

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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
References in periodicals archive ?
CVT replaces the planetary gear set of a standard automatic transmission with two variable-diameter pulleys, each shaped like a pair of opposing cones, with a metal belt or chain running between them.
The exclusive gear box cooling system features larger differential planetary gear box and forced air cooling system that extends the gear box life.
North America is currently undergoing a trend toward multimode automatic transmissions, and this is resulting in increased numbers of sun gears located at the center of the planetary gear unit as well as the pinion gears that make up planetary gears.
This month, the company proudly announced its decision to add new multipliers to its inventory, thereby completing its line of PTT Planetary Gear Torque Multipliers.
Among specific topics are identifying operational damages of air-turbine engines using visual diagnostics, graph-based models of compound planetary gear boxes, filtering algorithms for three-dimensional range image analysis, the computer simulation of digital measurement, the effect of cutting parameters on the surface texture of flame-sprayed coatings, the active thermography method of assessing the impact of temperature on thermophysical properties of a super-alloy gas-turbine blade, a multiscale modeling method for selected functionally graded material, and didactic models used in mechatronic courses.
The variable-speed planetary gear from Voith is a product that has proven itself for decades in reliable operation in the oil and gas industry.
This system integrates a planetary gear pump that has six outlets to realize the M[mu]IM.
The planetary gear installation kit produced by the renowned transmission specialist IMS Gear is thus expanding the possible applications for Buhler's products.
The maker has expertise in designing and producing planetary gear reducers that meet ISO9001 standards for CNC (computerized numerically controlled) machine tools, supplying mainly precision planetary gear reducers, various sizes of gears, spur gears, helical gears, worms and worm gears.
Available in 1-6 inches, the ball valve boasts a two-step planetary gear system to ensure smooth opening and closing.
The planetary gear quality is directly influenced by variation of sounds and vibrations between maximum and minimum values; in turn these factors are influenced by various generating noise sources.
Planetary gear transmissions are widely used in machine design mainly due to the internal power splitting and the resulting high load carrying capacity.

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