An epicyclic gear teach (also called planetary gear) contains two gears mounted so that the centre of 1 equipment revolves around the center of the various other. A carrier connects the centres of the two gears and rotates to transport one equipment, called the planet gear or world pinion, around the various other, called the sun gear or sunlight wheel. The planet and sun gears mesh so that their pitch circles roll without slip. A point on the pitch circle of the planet gear traces an epicycloid curve. In this simplified case, the sun equipment is fixed and the planetary gear(s) roll around sunlight gear.
An epicyclic gear train can be assembled so the planet gear rolls on the inside of the pitch circle of a set, outer gear band, or ring equipment, sometimes called an annular equipment. In this instance, the curve traced by a spot on the pitch circle of the planet is a hypocycloid.
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 this instance, the ring gear is usually fixed and the sun gear is driven.
Epicyclic gears obtain name from their earliest software, which was the modelling of the actions of the planets in the heavens. Believing the planets, as everything in the heavens, to be perfect, they could only travel in perfect circles, but their motions as viewed from Earth cannot end up being reconciled with circular movement. At around 500 BC, the Greeks developed the thought of 
epicycles, of circles traveling on the circular orbits. With this theory Claudius Ptolemy in the Almagest in 148 AD could predict planetary orbital paths. The Antikythera Mechanism, circa 80 BC, had gearing which was in a position to approximate the moon’s elliptical path through the heavens, and also to improve for the nine-12 months precession of that route.[3] (The Greeks could have seen it not as elliptical, but instead as epicyclic motion.)
EP, a versatile and multi-use choice, is not just another simple planetary gearbox. EP high-tech planetary reducer is definitely a genuine integrated concept, including several functions combined alongside one another to give you a complete sub-assembly to the most demanding machines.
EP is the best high-tech servo-reducer, specially focused on designs requiring:
Superior output torsional stiffness
Ultra-high 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 installation pinions, Planetary Reducer Gearbox pulleys, couplings, etc.
High input speeds
Superior acceleration and exceptional torque density
Minimum backlash (1 – 3 arc-minutes)
In-Line or proper angle arrangements
This versatile design makes it possible for design engineers to find precise solutions to the most demanding applications.
Parallel shaft Gearmotors
Helical Single-Stage
The S Series style makes this gearmotor particularly effective for fan, blower applications and pump. To meet the needs of clients in these sectors, the S Series can be available in the ft . or flange versions and may be completed with an array of electric motors entirely made by EP. Asynchronous motors both IEC and small (B-BE-BX/M-ME-MX), servomotors (BMD) and reluctance motors (BSR) could be coupled with the S Series: with the breadth of its portfolio, EP provides clients with an outstanding balance of dynamics, productivity and cost effectiveness.