0
A set of gears provides a method to change the torque from a rotating object, such as the output shaft of a motor or engine, and either reduce the rate of rotation in exchange for an increase in torque (geared down), or increase the rate of rotation in exchange for a decrease in torque (geared up).
This is useful for a number of reasons. First of all many motors when hooked up to an electrical power source rotate at a very high speed and the desired rate of rotation is usually lower so the output from the motor is geared down. Secondly, motors are most efficient usually at a certain rate of rotation around 20% or so of the free speed (motor's output shaft rate of rotation with no load), and motors provide the most power at 50% of free speed. Using gears can help to achieve max power or max efficiency.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoPlanetary gearing is also known as Epicyclic gearing. It is a gearing system consists of external and central gears. External gears are also known as planet gears while internal gear is referred as sun gear. Planetary gears for different purposes i.e. for reducing speed, to produce different ratios of gearing, etc.
Wiki User
∙ 11y agowell the gears are there to put the object in different motions.
Wiki User
∙ 12y agobikes, cars most motorised vehicles
Add your answer:
Earn +20 pts
What is the purpose of a thrust washers in da back of the planetary and sun gears in the differential?
Prevent noise when vehicle is cornering
Pioneer space probe?
The Pioneer space probes are a series of unmanned space missions sent out by the United States for the purpose of planetary exploration.
What is one planetary body?
Mars is a planetary body.
Is planet an adjective?
no.. planet is a noun.however,planetary or inter planetary is an adjective
What is the technical name for planetary orbits?
"Planetary orbits" is the technical term.
Is planetary gears used for spur gear?
Planetary gears can be spur or helical gears.
What is the purpose of a thrust washers in da back of the planetary and sun gears in the differential?
Prevent noise when vehicle is cornering
What three gears make up a complete planetary gear system?
The gears in a planetary gear system are the drive gear, ring gear, and planetary gear.
How much does it cost to replace planetary gears?
1$
What type of gear is a bike?
Pretty much all bikes qualify as chain and sprocket gear systems, and the ones with internal gears also have planetary gears inside their hubs. There are also two systems available that puts planetary gears in the crank assembly. Well, if it has an internally geared hub it has a more or less complicated set of planetary gears(depending on the no of gears). If it has experna gears then it has front set of sprockets and a rear set of sprockets. By running the chain over these sprockets in different combinations you get different ratios that can be used depending on how hard the rider wants to pedal.
Brief explanation of epicyclic gear train?
Epicyclic gearing or planetary gearing is a gear system consisting of one or more outer gears, or planetgears, revolving about a central, or sun gear. Typically, the planet gears are mounted on a movable arm or carrierwhich itself may rotate relative to the sun gear. Epicyclic gearing systems also incorporate the use of an outer ring gear or annulus, which meshes with the planet gears. Planetary gears (or epicyclic gears) are typically classified as simple and compound planetary gears. Simple planetary gears have one sun, one ring, one carrier, and one planet set. Compound planetary gears involve one or more of the following three types of structures: meshed-planet (there are at least two more planets in mesh with each other in each planet train), stepped-planet (there exists a shaft connection between two planets in each planet train), and multi-stage structures (the system contains two or more planet sets). Compared to simple planetary gears, compound planetary gears have the advantages of larger reduction ratio, higher torque-to-weight ratio, and more flexible configurations.
Where is the planetary gears in a Chrysler Town and Country van?
It's the main drive gear mechanisms in the transmission.
Inventions of James watt?
separate condenser for a steam engine, planetary gears, printing machine among others.
What is crown gear?
the crown gear is the largest gear in th differential on your vehicle to the sides of the crown gear are the planetary gears
How does oversize tires affect your vehicle transmission?
Increasing tire size from the OEM tires will increase the stress load induced on the driveline. The planetary gears and carriers have to work harder than they were designed for and that creates a problem that leads to premature wear on planetary gears and on many other Automatic transmission components alike.
How do you release the drive system of a non working 853 Bobcat so it can be moved?
pull the final drives but mark the planetary gears because they are timed
How did the aerostar awd transfer case work was it viscous?
I believe that it is a planetary transfer case with an internal clutch pack, that delivers 30% of the engine torque to the front wheels, allowing for slip for cornering. When the van is driving normally, the planetary gears rotate as a unit but if the rear wheels start to slip, the planetary gears start to turn out of sync with the rest, a sensor detects this motion, and an electric solenoid locks the clutch pack together. After four seconds the solenoid releases, and if the tires slip, the cycle starts again.
