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Question Linear Actuator Side Load

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Erik Green, Sep 3, 2019.

  1. Erik Green

    Erik Green Member

    Mar 22, 2019
    +3 / 0 / -0
    My Motion Simulator:
    To look at a Stewart platform from a theoretical standpoint, I wish assume there is zero side load (radial) on the actuators in operation. In real world operation is there any major side load/friction between the extension shaft and it's bearing?
  2. JAD

    JAD Member

    Jan 17, 2016
    +78 / 2 / -0
    I'd suggest your correct in assuming near zero side loads.
    The negligible lateral loads would come from self weight due to the actuator leaning over from the vertical.

    My actuators are 'frameless' and more susceptiple to lateral loads and for me its so far so good. The double ball nuts help also.
    But without the extra lateral support somewhere along the tube extension length, it makes the effective length extra long, and so my actuaotors suffers from vibration more easily.
    Its not a show stopper and Im getting comfortable with the vibration, but not ideal.
    IMG_20190728_172031 (1).jpg
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