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Old February 1st, 2007, 01:28   #27
MadMax
Delierious Designer of Dastardly Detonations
 
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Join Date: Dec 2001
Location: in the dark recesses of some metal chip filled machine shop
heat sinks wouldn't work as the heat buildup is on the armature (where the coils are) which has poor contact with anything else in the motor (it's spinning). Heat sinking the can can remove heat from the magnets, but they don't heat up much. Heatsinking the brush housings might help cool the brushes a bit, but it would do nothing for the coils which are the major heat loads.
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