Epicyclic gears get their name from their earliest software, that was the modelling of the motions of the planets in the heavens. Believing the planets, as everything in the heavens, to end up being perfect, they could only travel in ideal circles, but their motions as seen from Earth could not become reconciled with circular motion. At around 500 BC, the Greeks created the thought of epicycles, of circles venturing on the circular orbits. With this theory Claudius Ptolemy 
in the Almagest in 148 AD could predict planetary orbital paths. The Antikythera System, circa 80 BC, got gearing which was able to approximate the moon’s elliptical route through the heavens, and even to improve for the nine-yr precession of that route.[3] (The Greeks could have seen it much less elliptical, but instead as epicyclic motion.)
EP, a versatile and multi-use Planetary Reducer Gearbox answer, is not simply another simple planetary gearbox. EP high-tech planetary reducer is definitely a true integrated concept, including countless functions combined mutually to offer a complete sub-assembly to the virtually all demanding machines.
EP is the best high-tech servo-reducer, specially dedicated to designs requiring:
Superior output torsional stiffness
Ultra-large output radial stiffness and Tilting moment
Patented output bearing design
A high-tech planetary equipment train, predicated 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 correct angle arrangements
This versatile design helps it be possible for design engineers to find precise answers to the most demanding applications.
Parallel shaft Gearmotors
Helical Single-Stage
The S Series style produces this gearmotor particularly effective for pump, fan and blower applications. To meet up the needs of buyers in these sectors, the S Series can be available in the foot or flange versions and may be completed with a broad range of electric motors entirely produced by EP. Asynchronous motors both IEC and compact (B-BE-BX/M-ME-MX), servomotors (BMD) and reluctance motors (BSR) can be in conjunction with the S Series: with the breadth of its portfolio, EP provides consumers with a superb balance of dynamics, price effectiveness 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 gear is generally fixed and the sun gear is driven.