Possible motor issue?

[Robbyrockett]

Motor 3 on my solo feels different than the others. I'm not real familiar with brushless motors. The other 3 when spun by hand have defined points where the magnets settle, not as defined as a stepper but it sort of reminds me of that. Motor 3 feels more like it's free spinning, not completely just...kind of feels like the magnets are weak compared to the rest.
All the motors operate when they are started.
My question is ; Should this concern me? Is this an indicator the motor has been overheated at some point?

 

[RichWest]

Maybe the other three motors are bad, the less cogging torque = better. Cogging torque is what you feel, it's normal-ish with Solo motors. It's is a portion of the vibes emitted by the motors.

A bearing swap won't solve the problem, but you'll find improvements if done.

There are some threads here that discuss motors, they are worth a read...search is your friend.

 

[Robbyrockett]

Ah , thank you. The term cogging torque should definitely help with the search. I just knew if one of these things is not quite like the others it's probably telling me something lol.