Re: [CAD_CAM_EDM_DRO] Heat sink for stepper motor

In a message dated 5/16/2003 6:34:07 PM Central Standard Time,
fortino_tan@... writes:

> Would adding heatsink plus fan to stepper motor prolong its lifetime/
> performance ? Has anyone use heatsink to cool the running steppers?
>

First question: Surely, particularly where "rated current" is maintained for
the higher speeds for extended periods.

Second question: I don't know about the LATEST Bridgeports, nor can I tell
you the "model number" of the ones I saw in use in a friend's job-shop (he
had like seven?) but "earlier" Bridgeports had Size-42 Superior Electric
steppers which had "custom" cast-iron shells with RIBS running parallel to
the shaft. Looked like a horrible club-head. Those almost-certainly cost BP
three or four times as much, even in their OEM quantities, than "catalog"
steppers of same electrical specs!


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