What is the sun shaft of travel final drive and what it’s used for ?

What is the sun shaft of travel final drive and what it’s used for ? :

Sun shaft is travel final drive  element in the planetary gearbox. On the top of sun shaft there is a gear which transfers power from travel motor to gearbox which  puts the entire transmission in motion. At the bottom, we find a spline gear which is the place where sun shafts cooperate with motor shaft

Sun shaft as motor shaft are  the most important elements of the planetary gearbox 

How to avoid failure of the sun shaft?

Truth is that – you cant avoid damage of sun shaft . Sooner or later you will have to deal with this problem . Remember one think , excavator is not a car , travel devices are created to cross small distances . If you ride your excavator 1000-2000 meters per day , you will destroy it much faster.

Try to dont push your drive stick nervously forward , reverse during work . Use it smart

How do you search for a shaft?

If you are looking for a sun shaft, you should prepare some information, aspecially how many teeths has your sun gear on upper side , how many splines on button and how long is the sun gear . If you got this information you can try to find gear which you need

If you have a problem with finding the gear , please contact our sale managers