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Re: Motor Bias
After a lot of run time, the brushes on a motor may wear in such a way that one direction will have more and cleaner contact then another. This could have an impact on speed/torque in one direction and not the other.
I have seen motors that over time loose power in one direction, but seem like new when run in the other direction. This was very apparent in motors used in a roller system that almost never has to be run in reverse. Forward would clearly be slower and have less torque then reverse even when accounting for things like wear in the drive train.
I'm just guessing that the cause has something to do with an uneven wear or gunk build up on the brushes. Could some one with more expertise on DC motors clear that up for me?
Out of the box, the CIM motors should be unbiased.
-Andy A.
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