A planetary gearbox refers to a gear system in which one or more ‘world’ gears rotate around a central ‘sun’ equipment. Typically, a world carrier is powered by the insight torque which rotates the planets around a set outer ring (sometimes known as the annulus). Therefore drives the sun gear which then supplies the output torque. However there are examples of the various other combinations, like the sun gear being fixed and the band providing output torque.
The main advantage of planetary gearboxes are their high power transmission efficiencies. Typicially this could be around just 3% per stage. Further to the, the high effiency is delivered regardless of the compact style giving a huge torque to size/weight ratio. A few of this is because of the load sharing that occurs over the multiple planet gears.
A planetary gearbox identifies a gear system where one or more ‘world’ gears rotate around a central ‘sun’ gear. Typically, a world carrier is driven by the insight torque which rotates the planets around a set outer ring (sometimes known as the annulus). Therefore drives the sun gear which then provides the output torque. However there are examples of the additional 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. Further to this, the high effiency is certainly delivered regardless of the compact design giving a sizable torque to size/weight ratio. A few of this is because of the load sharing that occurs over the multiple planet gears.
Reliable Small Planetary Gearbox
EP Motor’s small planetary gearbox is available in 7 different sizes with diameters of 16mm, 22mm, 26mm, 28mm, 32mm, 36mm, and 45mm, each consisting with mono and multi-phases, and the gear ratios range from 3.3:1 ~ 1500:1.