39381
The rear axle is a double reduction type: the first reduction is
by means of the pinion - ring bevel gear unit and the second
is obtained through an epicyclic unit in the wheel hubs.
The differential housing, with the ring bevel gear , is supported
by two taper roller bearings that can be adjusted through two
threaded ring nuts.
The pinion is supported by two taper roller bearings and a
third straight roller bearing.
The bevel pinion unit is adjusted through adjusting rings that
are fitted between the the two taper roller bearings.
The axle is equipped with a pneumatically controlled device
to lock the differential.
The half shafts coming from the differential transmit the mo-
tion to the epicyclic gears.
PICTORIAL CROSS SECTION OF THE DIFFERENTIAL
1. Coupling flange - 2.Oil seal - 3. Outer seal ring - 4. Front bearing - 5. Adjusting ring - 6. Screw - 7. Bevel pinion support -
8. Intermediate bearing - 9. Adjusting ring - 10. Rear bearing - 11. Adjusting ring nut - 12. Differential housing bearing -
13. Short pin - 14. Spider - 15. Planetary gear - 16. Crown wheel - 17. Cover - 18. Gear housing - 19. Cover - 20. Screw -
21. Screw - 22. Long pin - 23. Safety plate - 24. Engaging sleeve - 25. Sliding sleeve - 26. Shoulder washer - 27. Split ring -
28. Engaging fork - 29. Transmitter - 30. Spring - 31. Plug - 32. Differential housing - 33. Taper pinion - 34. Oil baffle -
35. Lock nut
Figure 1
REAR AXLE IN TANDEM
3
SECTION 12.5
ASTRA HD8Ec
DESCRIPTION
