Planetary Gear Boxes
Planetary gear trains provide high power density in comparison to standard parallel axis gear trains. They provide a reduction volume, multiple kinematic combinations, purely torsional reactions, and coaxial shafting.
The efficiency loss in a planetary gear train is 3% per stage. This ensures that a high proportion of the energy being input is transmitted through the gearbox rather than being wasted on mechanical losses inside the gearbox.
The load in a planetary gear train is shared among multiple planets therefore torque capability is greatly increased. The more planets in the system the greater load ability and the higher the torque density.
The planetary gear train also provide stability due to an even distribution of mass and increased rotational stiffness. Torque applied radially onto the gears of a planetary gear train is transferred radially by the gear without lateral pressure on the gear teeth.
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Bonfiglioli Planetary Gear Boxes. Compact, and yet extremely powerful! Their planetary drive train makes them the ideal choice for all the severe duty applications where shock loadings and impacts are more the rule than the exception. The product configuration is highly versatile, due to several options as far as the mounting, the gear layout, the output shaft and the motor interface. All the features are available for each of the 18 finely spaced frame sizes, spanning over the 1.000 - 1.400.000 Nm torque range. Finding the perfect match to any drive problem is therefore more than a wish, it is something users can safely rely on - always.
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