A F with 4WD and the 5. The same model in 2WD is rated 15 mpg city, 21 highway.
Compound planetary gears[ edit ] Stepped planet series of the Rohloff Speedhub internally geared bicycle hub with the smaller planet series meshing with the sun wheel and the larger planet series meshing with the ring gear. Some designs use "stepped-planet" which have two differently-sized gears on either end of a common shaft.
The large end engages the sun, while the small end engages the ring gear. This may be necessary to achieve smaller step changes in gear ratio when the overall package size is limited. Compound planets have "timing marks" or "relative gear mesh phase" in technical term.
The assembly conditions of compound planetary gears are more restrictive than simple planetary gears,  and they must be assembled in the correct initial orientation relative to each other, or their teeth will not simultaneously engage the sun and ring gear at opposite ends of the planet, leading to very rough running and short life.
Compound planetary gears can easily achieve larger transmission ratio with equal or smaller volume. For example, compound planets with teeth in a 2: More planet and sun gear units can be placed in series in the same ring gear housing where the output shaft of the first stage becomes the input shaft of the next stage providing a larger or smaller gear ratio.
This is the way some automatic transmissions work. During World War IIa special variation of epicyclic gearing was developed for portable radar gear, where a very high reduction ratio in a small package was needed.
This had two outer ring gears, each half the thickness of the other gears. One of these two ring gears was held fixed and had one tooth fewer than did the other.
Therefore, several turns of the "sun" gear made the "planet" gears complete a single revolution, which in turn made the rotating ring gear rotate by a single tooth like a Cycloidal drive. Planet gears are extended into cylindrical cutters, rotating around the pencil that is placed on the sun axis.
The axes of planetary gears join at the pencil sharpening angle. Planetary gear trains provide high power density in comparison to standard parallel axis gear trains.
They provide a reduction volume, multiple kinematic combinations, purely torsional reactions, and coaxial shafting.
Disadvantages include high bearing loads, constant lubrication requirements, inaccessibility, and design complexity. The load in a planetary gear train is shared among multiple planets; therefore, torque capability is greatly increased.
The more planets in the system, the greater the load ability and the higher the torque density. The planetary gear train also provides stability due to an even distribution of mass and increased rotational stiffness. Torque applied radially onto the gears of a planetary gear train is transferred radially by the gear, without lateral pressure on the gear teeth.
In a typical application, the drive power connects to the sun gear. The sun gear then drives the planetary gears assembled with the external gear ring to operate.
The whole set of planetary gear system revolves on its own axis and along the external gear ring where the output shaft connected to the planetary carrier achieves the goal of speed reduction. A higher reduction ratio can be achieved by doubling the multiple staged gears and planetary gears.
The method of motion of a planetary gear structure is different from traditional parallel gears. Traditional gears rely on a small number of contact points between two gears to transfer the driving force.General. Discipline: sure, being a huge fellow with a large sword that can shout loud is impressive.
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While they do have their advantages, vehicle specific mats can become a liability if you would like to be able to transfer the mat between multiple vehicles you own. The Plasticolor Rubber Cargo Mat with Harley-Davidson Logo.
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TERM: DESCRIPTION # Over/Under: This refers to the length of front forks as compared to the stock length. Ex ten over means 10 inches longer than in stock .
Case 17 Harley-Davidson: Style and Strategy Have Global Reach 1. If you were CEO of Harley-Davidson, how would you compare the advantages and disadvantages of using exports, joint ventures, and wholly owned subsidiaries as ways of expanding international sales?
A: When using the exports, its advantages are could expand its sales without concerning the others things, such as the local 75%(12).