Front planet (5 pinions), automatic transmission AW TF-80SC AW TF-81SC AW101953X used

Planetary gear:

• Overall height - 57.80 mm;
• Outer diameter of planetary gear - 139.05 mm;
• Number of satellites - 5 pcs;
• Number of teeth on satellite - 17 pcs;
   

Sun gear:

• Total height - 18.05 mm;
• Number of teeth - 45 pcs;
• Outer diameter - 68.70 mm;
• Number of teeth on the inner side - 40 pcs;

Planetary gearset (differential type) - a mechanical system consisting of several planetary gears (gears), rotating around the central, sun gear. Typically, the planetary gears are fixed together by a carrier.

The main elements of the planetary gearset:

- Sun gear (hereinafter referred to as - the sun) is located in the center;

- Carrier: rigidly fixes relatively to each other the axis of several planetary gears (satellites) of equal size, engaged with the sun gear;

- The ring gear: external gear having internal engagement with planet gears.

Pinion - planetary gear.

Taken separately, each of these three elements of the planetary gear set can be driven, driving or fixed. The gear ratio of the planetary gear set is determined by the choice of the role of each component.