We'll disassemble and inspect a hydraulic gerotor motor. This is a high torque hydraulic drive motor. This type of motor is on smaller construction equipment; bobcats and small excavators. This unit is broken, so we take it apart to see if we can repair it.

By AvvE

12 thoughts on “Hydraulic gerotor motor teardown”
  1. Avataaar/Circle Created with python_avatars dmoney represent says:

    What does BOLTR mean?

  2. Avataaar/Circle Created with python_avatars Marc The Frog says:

    I love that for 8+ years AvE has been enlightening us bumblefucks and I am forever grateful

  3. Avataaar/Circle Created with python_avatars Adam's Blanchard says:

    I'll figure something…every piece of this piston motor holds within .001-.0015 though so i promise that bitch wasn't used all that much

  4. Avataaar/Circle Created with python_avatars Adam's Blanchard says:

    Good info….wtf i use it for yet idk…then i have like 5 other mitors idk wtf to do with either…haha

  5. Avataaar/Circle Created with python_avatars Adam's Blanchard says:

    Breaking down same motor right now someone gave me it was a little seized i think it was just sitting up a while

  6. Avataaar/Circle Created with python_avatars Bikefarm Taiwan says:

    In the garage for four years??? You too eh?

  7. Avataaar/Circle Created with python_avatars Elliot Kane says:

    Yeah, it's a geroler motor, a gerotor is different, the rollers are what make it a geroler.

    Eaton uses these fairly widely, I think a common use is in a direct drive system where there is limited space, to avoid a planetary drive set.
    The geroler makes heaps of torque.

    My problem is that it seems to have shifted on disassembly and now the sprocket (timing gear) won't go back in place.

  8. Avataaar/Circle Created with python_avatars Derek Green says:

    What it is you do for a living? Some kind of millwright ? You definitely have some engineering experience of some kind .

  9. Avataaar/Circle Created with python_avatars Jason Yates says:

    Shes still good for material though. That's good quality steel.

  10. Avataaar/Circle Created with python_avatars Zoidsfan77 says:

    I miss the old AvE videos. They have a certain charm. They were good without having to try.

  11. Avataaar/Circle Created with python_avatars DIYGuy says:

    Can this kind of hydraulic motor be used as a hydraulic pump?

  12. Avataaar/Circle Created with python_avatars Nizam Niz says:

    Why rested ? And what is the causes for its failur ?

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