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Old 09-03-2013, 04:32 PM   #1
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Default Motor shaft is loose in the stator.....

I have a motor where the shaft has come loose in the stator and wants to walk out. This is the second motor of this type that has done this. Anybody know a good way to fix this?
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Old 09-03-2013, 08:33 PM   #2
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So you mean the shaft deboned from the rotor? Because the stator and shaft aren't even connected.
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Old 09-03-2013, 09:37 PM   #3
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If you free rev it to the max, that's the result I think.
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Old 09-03-2013, 10:19 PM   #4
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If the shaft broke loose from the rotor, u need a new rotor. If what ur talking about is the play u can fix that with small motor shims. U do still want a small amount of play however. Dont keep it locked down
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Old 09-04-2013, 07:49 AM   #5
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Maybe the rotor is what I am talking about. I am not that familiar with brushless nomenclature. The shaft will walk out of the motor while it is running.
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Old 09-04-2013, 08:48 AM   #6
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Quote:
Originally Posted by TheStnchOfSpeed View Post
Maybe the rotor is what I am talking about. I am not that familiar with brushless nomenclature. The shaft will walk out of the motor while it is running.
How far? If it just has play back and forth a mm or two, that is normal. If the shaft can literally walk all the way out, then your shaft has separated from the magnet... rotor is toast. Make sure don't free rev your motor with no load.
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Old 09-04-2013, 12:01 PM   #7
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The shaft will walk most of the way out. It is loose in the rotor. I might try making a press on "wedding ring" to keep the shaft from sliding out.
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Old 09-04-2013, 12:54 PM   #8
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Quote:
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The shaft will walk most of the way out. It is loose in the rotor. I might try making a press on "wedding ring" to keep the shaft from sliding out.
Open up the motor and post a pic of the rotor. What kind of motor is it. Better yet post a shirt video. If you say its coming almost all the way then the side of the shaft near the sensor board is coming completely outbid the bearing. At that point the rotor won't spin
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Old 09-05-2013, 11:17 AM   #9
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Had this happen to me .. I used GREEN lock tite from Auto Zone .. align rotor to or as close to OG position apply GREEN lok tite to shaft on both ends . Doesnt take alot . and make sure to heat up rotor to dry the lock tite .. saved me a few motors from being replaced ..
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Old 09-05-2013, 05:35 PM   #10
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Yeah I thought about trying that but wasn't sure if that could take the heat. Maybe I'll give it a shot before I make a sleeve.
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