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Old 09-11-2018, 11:54 PM
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Diseasel300 Diseasel300 is offline
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Quote:
Originally Posted by Dubyagee View Post
Possible. I have heard plenty of commutators screech as shown though.
Maybe when completely ruined. This is ball bearing noise. Common issue on lots of high speed motors. When the grease dries out, they get that horrible scream to them. The giveaway is the rough groan on spindown.
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