Answer / arumugam

to get large reduction ratio

Answer / ravindra

Main purpose of planetry gear is to providve motion into
different direction with less friction and more torque
Any planetary gear set is composed of three components :
Sun gear
Planet gears and the planet gears' carrier
Ring gear

Answer / kavan desai

They are used in the applicaions of lower weight ,lower
space ,higher effeciency and most importantly higher torque
transmission

Answer / annadurai

to get large reduction ratio, They are used in the
applicaions of lower weight ,lower
space ,higher effeciency and most importantly higher torque
transmission
Low maintenance cost

Answer / ranjit

SPEED VARIATION WITHOUT SHIFTING GEAR(AUTOMATICALY)

Answer / govind

1.parallel axis gears include high power density.
2.large reduction in a small volume, multiple kinematic
combinations, pure torsional reactions, and coaxial
shafting.
3.planetary gearbox arrangement is load distribution.
4.Because the load being transmitted is shared between
multiple planets, torque capability is greatly increased.
The more planets in the system, the greater load ability
and the higher the torque density.

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