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To model a swivel arm on column that rotates by hand What type of bearing should i use Should it support radial and axial load or just supporting axial load is enough ?

  • $\begingroup$ Use a bearing capable of supporting all the loads applied - first define those loads. $\endgroup$
    – Solar Mike
    Feb 16, 2019 at 10:26
  • $\begingroup$ It probably needs to support some moments, as well as forces. $\endgroup$
    – alephzero
    Feb 16, 2019 at 11:11
  • $\begingroup$ Ok can i use a pair of deep groove ball bearing and thrust ball bearing ? $\endgroup$ Feb 16, 2019 at 11:55
  • $\begingroup$ What direction is the thrust? $\endgroup$
    – Solar Mike
    Feb 16, 2019 at 12:50
  • $\begingroup$ Thrust direction is down cause i want to hang a 9kg mass from the end of the tube at the right . $\endgroup$ Feb 16, 2019 at 13:52

1 Answer 1


you have both: $$ M= 9kg*L+ lever\ weight*L/2$$

L = length of the lever arm.

$$ P = 9 + Lever\ weight $$

So you need a bearing that can carry both radial and axial.

Not any less important is to make sure the post and its attachment at base are strong enough to support sudden jerks and vibration of the start and stopping action of the lever.


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