A planetary gearbox refers to a gear system in which a number of ‘world’ gears rotate around a central ‘sun’ 
equipment. Typically, a planet carrier is driven by the input torque which rotates the planets around a fixed outer ring (sometimes referred to as the annulus). This in turn drives sunlight gear which then provides the output torque. Nevertheless there are examples of the various other combinations, such as the sun gear being fixed and the ring providing output torque.
The main benefit of planetary gearboxes are their high power transmission efficiencies. Typicially this can be around simply 3% per stage. Additional to this, the high effiency is certainly delivered regardless of the compact style giving a big torque to size/weight ratio. Some of this is because of the load sharing that occurs across the multiple planet gears.
A planetary gearbox identifies a gear system in which a number of ‘planet’ gears rotate around a central ‘sun’ equipment. Typically, a planet carrier is powered by the insight torque which rotates the planets around a set outer ring (sometimes referred to as the annulus). Therefore drives the sun gear which then supplies the output torque. However there are examples of the other combinations, such as the sun gear being set and the band providing output torque.
The main benefit of planetary gearboxes are their high power transmission efficiencies. Typicially this can be around simply 3% per stage. Further to the, the high effiency can be delivered despite the compact style giving a huge torque to size/weight ratio. A few of this is because of the load sharing that occurs across the multiple planet gears.
Reliable Small Planetary Gearbox
EP Motor’s little planetary gearbox comes in 7 different sizes with diameters of 16mm, 22mm, 26mm, 28mm, 32mm, 36mm, and 45mm, each consisting with mono and multi-stages, and the apparatus ratios range from 3.3:1 ~ 1500:1.
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