The inner space (3) is provided with a sun-and-planet gear (4) and a first mechanical rectifier (5).

The planetary unit includes a sun gear, at least one planet gear and a ring gear, with the planet gear being in co-meshing engagement with the sun and ring gears.

The first satellite (12) meshes with the small internal sun gear (16) and with the second satellite (13) which meshes with the large internal sun gear (17) and with the external sun gear (14).

The first satellite (12) meshes with the small internal sun gear (16) and with the second satellite (13) which meshes with the large internal sun gear (17) and with the external sun gear (14).

A planetary gear assembly (14) comprises a planet gear (18) for engaging with a sun gear (12) and an annulus (16) of a planetary gearbox.

A planet row comprises a sun wheel (1), a planet wheel (5) and a planet frame (2).

It comprises a second epicyclic gear train (9) including an external sun gear (14), a small and a large internal sun gear (16, 17) and a double satellite carrier (11).

Each rotatable elliptical body is coupled to respective planet gears and each respective planet gear is meshed with a centrally disposed fixed sun gear.

It comprises a second epicyclic gear train (9) including an external sun gear (14), a small and a large internal sun gear (16, 17) and a double satellite carrier (11).

The fifth shaft (5) is connected to the planet carrier of the second planetary gear set (P2), to the ring gear of the third planetary gear set (P3) and to the ring gear of the fourth planetary gear set (P4).

Each planet assembly (B), in addition to its planet gear (6), includes a pin (34) which extends through the planet gear (6) and an antifriction bearing (36) located between the gear (6) and the pin (34).

The transmission comprises a planetary gear train (8) having a sun gear, a fixed annular gear (8b), at least one planet gear (8c) and a planet carrier (8d).

The invention especially relates to a planetary gearbox which conventionally comprises a sun wheel (1), an internal-geared wheel (2), and at least one planet wheel (9).

The first planet gear (124a) is positioned to engage a first side gear (26) and a second planet gear (25) is positioned to engage a second side gear (25).

The planetary gear comprises a planet carrier (i), at least one planet gear (ii) mounted thereon and at least one of a sun gear (iii) and a ring gear (iv).