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Thread: When do you need to replace the rotor of a brushless motor?
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Old 03-21-2021 | 09:45 AM
  #23  
Dave H
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Joined: Oct 2007
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Originally Posted by Timmahh
When you rotate a Bl motor by hand, you can fell the rotor magnet 'grab' the metal and in a way, 'clunk' into place. This is just magnetics at work. But it can feel like a clunk or hard click when moving them by hand.
Brushed motors too. Frequently called cogging I believe.

Cogging happens at repeatable intervals as the shaft is turned, the same number of times each revolution, etc.
Last edited by Dave H; 03-21-2021 at 10:00 AM.
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