Rotation of either the outer ring member (1) or the sun roller member (2) wedges the planetary roller within a convergent gap which squeezes the planetary roller (3) between the outer ring member (1) and the sun roll member (2).

One of the branches (31, 32) is connected to the neighboring satellite wheel.

These tongues serve as counterweights balancing the imbalance moment of the satellite gear wheel which is due to its eccentric mounting on the input shaft.

The essence of the invention is that from the point of view of the main propelling direction of the device the satellite wheel (7) is located in front of the central wheel (1).

Friction between the flexible planetary roller (3, 4, or 5), the sun roller member (2), and the outer ring member (1) transmits rotational motion and torque between the outer ring member (1) and the sun roller member (2).

A satellite wheel (aka the earth) engages the planetary wheel in one month, driven by the date disc.

A satellite wheel engages with the planetary wheel and rotates, orbiting the planetary wheel in one month, driven by the date disk.

A satellite wheel (aka the earth) engages the planetary wheel in one month, driven by the date disc.

The fixed wheel (6) is mounted immovably relative to the transportation means and is connected to the satellite wheel (5) by means of a chain or belt drive.

Friction between the planetary roller (3), the sun roller member (2), and the outer ring member (1) transmits rotational motion and torque between the outer ring member (1) and the sun roller member (2).

The hinged bearing (7) can comprise an outer part (7a) mounted on the planet axis (4b) and an inner part (7b) fixedly connected to the planet carrier (5).

An eccentric planetary traction drive transmission (A) in which a planetary roller (3) is positioned between and in contact with an outer ring member (1) and a sun roller member (2).

The satellite wheel has four fingers which represent the four months of the year with thirty days.