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Epicyclic gears get their name from their earliest software, that was the modelling of the movements of the planets in the heavens. Believing the planets, as everything in the heavens, to be perfect, they could only travel in ideal circles, but their motions as seen from Earth could not end up being reconciled with circular motion. At around 500 BC, the Greeks invented the thought of epicycles, of circles traveling on the circular orbits. With this theory Claudius Ptolemy in the Almagest in 148 AD was able to predict planetary orbital paths. The Antikythera System, circa 80 BC, experienced gearing which was in a position to approximate the moon’s elliptical route through the heavens, and also to correct for the nine-season precession of that path.[3] (The Greeks would have seen it much less elliptical, but rather as epicyclic motion.)
EP, a versatile and multi-use solution, is not merely another simple planetary gearbox. EP high-tech planetary reducer is usually a genuine integrated concept, including many functions combined jointly to give a complete sub-assembly to the most demanding machines.
EP is the best high-tech servo-reducer, specially dedicated to designs requiring:
Superior output torsional stiffness
Ultra-huge output radial stiffness and Tilting moment
Patented output bearing design
A high-tech planetary equipment train, based on REDEX’s differential know-how
ISO 9409-1 outcome drive flange for mounting pinions, pulleys, couplings, etc.
High input speeds
Superior acceleration and wonderful torque density
Minimum backlash (1 – 3 arc-minutes)
In-Line or proper angle arrangements
This versatile design makes it easy for design engineers to find specific solutions to the most demanding applications.
Parallel shaft Gearmotors
Helical Single-Stage
The S Series style makes this gearmotor particularly Planetary Reducer Gearbox effective for fan, blower applications and pump. To meet the needs of buyers in these sectors, the S Series is also available in the feet or flange versions and can be completed with an array of electric motors entirely manufactured by EP. Asynchronous motors both IEC and small (B-BE-BX/M-ME-MX), servomotors (BMD) and reluctance motors (BSR) could be in conjunction with the S Series: with the breadth of its portfolio, EP provides buyers with a superb balance of cost effectiveness, dynamics and efficiency.

The combination of epicycle gear trains with a planet engaging both a sun gear and a ring gear is called a planetary gear train.[1][2] In cases like this, the ring equipment is usually fixed and the sun gear is driven.