Re: Stepper motor questions

Grant,

6.8 amps seems very high for these can-type stepper motors. I
suspect that this is a misprint and should be .68 Amps.

Tony

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "grantfair2001"
<grant.fair@s...> wrote:

> I recently purchased a few of these steppers:
>
> http://www.brigarelectronics.com/Merchant2/merchant.mv?

Screen=PROD&Store_Code=BE&Product_Code=100SR

>
> The steppers have no labelling at all on them. From the gummy spot,

a

> small label seems to have been removed from all of them. The coils

are

> 3 ohms each (with ohmmeter lead resistance subtracted). Although the
> claim is made in the ad that they require 6 amps, they are quite

small

> (the cube part of the body measures 1.53 x 1.53 x 1.24 inches), and
> when I run these over about 2 amps, they start to overheat. The face
> of the mounting 'diamond' is machined very flat, so heat sinking
> appears to be intended in the design, I guess.
>
> Does anyone know what current these are designed for? Or the actual
> specs on them?
>
> TIA,
> Grant