SECTION KIT- 4T6131 - Caterpillar

Illustration 1 g02350837
Final drive
(1) Planetary shaft (second stage)
(2) Planetary gear (second stage)
(3) Roller bearing
(4) Gear coupling
(5) Pin
(6) Bearing
(7) Motor housing
(8) Travel motor
(9) Pin
(10) Housing (sprocket)
(11) Travel motor output shaft
(12) Ring gear
(13) Planetary carrier (second stage)
(14) Sun gear (second stage)
(15) Planetary carrier (first stage)
(16) Cover
(17) Sun gear (first stage)
(18) Roller bearing
(19) Planetary shaft (first stage)
(20) Planetary gear (first stage) The final drive reduces the rotational speed of travel motor (8). Travel motor output shaft (11) is splined to first stage sun gear (17) of the final drive.The final drive consists of two groups. The first group is the two stages of the planetary gears. The second group is the output group.The two stages of the planetary gears contain the following components.
The components of the first stage reduction are planetary carrier (15), ring gear (12), planetary gear (20) and sun gear (17).
The components of the second stage reduction are sun gear (14),