An epicyclic gear teach (also referred to as planetary gear) contains two gears mounted so that the centre of one equipment revolves Planetary Reducer Gearbox around the center of the additional. A carrier links the centres of the two gears and rotates to carry one equipment, called the earth gear or planet pinion, around the additional, called the sun gear or sunlight wheel. The planet and sun gears mesh so that their pitch circles roll without slide. 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 equipment(s) roll around the sun gear.

An epicyclic gear teach can be assembled therefore the planet gear rolls within the pitch circle of a set, outer gear ring, or ring gear, sometimes called an annular gear. In this instance, the curve traced by a spot on the pitch circle of the earth is a hypocycloid.

The combination of epicycle gear trains with a planet engaging both a sun gear and a ring gear is named a planetary gear train.[1][2] In this instance, the ring gear is generally fixed and the sun gear is driven.

Epicyclic gears get their name from their earliest application, which 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 just travel in perfect circles, but their motions as seen from Earth cannot be reconciled with circular motion. At around 500 BC, the Greeks invented the idea 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 System, circa 80 BC, experienced gearing which was in a position to approximate the moon’s elliptical path through the heavens, and actually to improve for the nine-year 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 alternative, is not merely another simple planetary gearbox. EP high-tech planetary reducer is usually a true integrated concept, including more than a few functions combined together 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-substantial 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 output drive flange for mounting pinions, pulleys, couplings, etc.
High input speeds
Superior acceleration and excellent torque density
Minimum backlash (1 – 3 arc-minutes)
In-Line or correct 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 may make this gearmotor particularly effective for pump, blower applications and fan. To meet the needs of clients in these sectors, the S Series can be available in the foot or flange variants and may be completed with a wide selection of electric motors entirely manufactured by EP. Asynchronous motors both IEC and compact (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 consumers with an outstanding balance of efficiency, cost effectiveness and dynamics.