Illustration 1 | g00299798 |
Final drives (1) Outer axle shaft. (2) Sprocket segments. (3) Inner planetary gears. (4) Outer planetary gears. (5) Planetary shafts. (6) Inner sun gear (part of outer axle). (7) Outer sun gear (part of axle). (8) Inner Carrier. (9) Outer Carrier. (10) Ring gear. (11) Hub. (12) Duo-Cone seals. |
The final drives take power from the steering clutches and the final drives send the power to the tracks. The final drives give a double reduction through the planetary gears.
The power from the steering clutches is sent to the final drive by the outer axle shaft (1). Inner sun gear (6) is fastened by splines to the outer axle shaft (1). The rotation of the axle shaft and inner sun gear (6) causes inner planetary gears (3) to turn. Ring gear (10) is a stationary component and inner planetary gears (3) rotate around the inside of ring gear (7) .
The rotation of inner planetary gears (3) around the inside of ring gear (10) causes inner carrier (8) to turn. Inner carrier (8) is connected to outer sun gear (7) by splines. The rotation of inner carrier (8) and outer sun gear (7) causes outer planetary gears (4) to turn.
Outer planetary gears (4) rotate around the inside of ring gear (10). The movement causes outer carrier (9) and hub (11) to turn. The movement of hub (11) sends power to sprocket segments (2) and the track.
The oil level in the final drives is maintained through a filler plug. All components receive lubrication oil as the gears move. The gears throw oil on all of the components (splash lubrication).