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A planetary gearbox identifies a gear system where one or more ‘planet’ gears rotate around a central ‘sun’ equipment. Typically, a world carrier is powered by the insight torque which rotates the planets around a fixed outer ring (sometimes referred to as the annulus). Therefore drives sunlight gear which then supplies the output torque. Nevertheless there are types of the various other combinations, such as 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 is often around just 3% per stage. Additional to this, the high effiency is usually delivered despite the compact design giving a large torque to size/weight ratio. Some of this is thanks to the load sharing occurring across the multiple planet gears.
A planetary gearbox refers to a gear system where a number of ‘planet’ gears rotate around a central ‘sun’ equipment. Typically, a world carrier is driven by the insight torque which rotates the planets around a fixed 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 set and the ring providing output torque.

The main advantage of planetary gearboxes are their high power transmission efficiencies. Typicially this can be around just 3% per stage. Additional to the, the high effiency is delivered despite the compact style giving a sizable torque to size/weight ratio. Some of this is thanks to the load sharing that occurs over the multiple planet gears.

Reliable Small Planetary Gearbox
EP Motor’s small 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 gear ratios range from 3.3:1 ~ 1500:1.