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Author Topic: DC motor magnet problem  (Read 568 times)

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Offline koolraj09Topic starter

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DC motor magnet problem
« on: December 18, 2011, 03:47:41 PM »
Hi all.
I have this DC motor used for e-bikes [Check here]
I am building a middleweight (<60Kgs) combat robot gearing down the motor from 3300 rpm to 330 rpm via chain drive. I tested it but it's magnets are coming off the casing. I am trying to find the cause of this rip off. I suspect it could be the glue strength, the sudden cyclic reversing of polarity or the rapid acceleration & deceleration . But I need your views. Also is there a way to glue back the magnets? Thanks.

Offline Soeren

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Re: DC motor magnet problem
« Reply #1 on: December 18, 2011, 04:54:55 PM »
[Check here]

Please check your links before posting (preview button, then right click the link and open in new window/tab) - or just copy-paste the raw URL, if you have trouble getting the link option to work.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives


Offline Soeren

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Re: DC motor magnet problem
« Reply #3 on: December 19, 2011, 08:16:02 AM »
It seems easy enough to open, so repair should be possible if you can find a high temperature epoxy or similar, but why not contact the seller and ask for a refund first - motors are not supposed to shed their magnets with normal use - did you drop in on a hard surface?
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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