Re: DC Motors (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 25 May 2007 14:29:27 +0800
From: westland <westland@xxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: DC Motors (fwd)

Hi Bart:

I would like to put my name on two of these (I've been looking for a 
torquey DC motor, so these fit the bill).  I will be moving to Chicago 
in the next two months, so if you wouldn't mind holding them in your 
garage for just a little while longer (and I would certainly understand 
if you didn't want to) I would be very grateful.

Thanks in advance

Chris Westland, Hong Kong (soon to be Chicago).


Tesla list wrote:
> Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Tue, 22 May 2007 19:16:35 -0700
> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> To: Tesla <Tesla@xxxxxxxxxx>
> Subject: DC Motors
>
> Hi All,
> I've got a bunch of DC Gear Reduction Motors on hand.
> http://www.classictesla.com/temp/gm_2.JPG
>
> A couple small crates worth (guessing about 100 motors on hand) that I 
> was once selling on eBay, but lost interest. I would like now to clear 
> out some space in my garage, but I can't see throwing these motors out. 
> They are perfect for winding machines.
>
> So, I'm now offering them for free. If you would like a few (not too 
> many as I'd like to make sure everyone that want's one gets one), just 
> email me "off the TCML" to my personal email (bartb@xxxxxxxxxxxxxxxx). 
> You will need to pay for shipping, but that's all. Contact me off the 
> list about payment methods for shipping. USPS flat rate is the cheapest 
> and about $8 to anywhere in the US.
>
> The motors "are" used, but I will hook up each one to ensure it works 
> and "sounds" normal. These motors were custom made or a low profile 
> application requiring high torque. Their direct from Germany. The motor 
> includes an internal clutch which limits the current to about 3.2 amps. 
> Thus, you can stall these motors for a brief period without damaging or 
> demagnetizing the motor. Of course, the longer they are in a stall 
> condition, the more ware that is put onto the clutch. The gear reduction 
> is 512:1 and I have a few that are 400:1 (I think). They are designed 
> for 24 VDC. The shaft will spin 1 revolution every 8 seconds at that 
> voltage. So, really low speed (which is why they are great for winding 
> machines). However, they are high torque and that is something to be 
> aware of. The motors new are $400 ea., but were purchased in higher 
> quantities where the cost was reduced to $100 ea. I'm letting them go 
> for free except shipping.
>
> If you want one, two, three, etc.., just send me an email.
>
> Take care,
> Bart
>
>
>
>   


-- 

___________________________________________________

J. Christopher Westland, PhD CPA
Professor, ISMT, University of Science & Technology, HK Clearwater Bay,Kowloon, Hong Kong
Tel: 852 2358 7643
Fax: 852 2358 2421
Mob: 852 9528 1745
URL: ihome.ust.hk/~westland
Mobile e-mail: chris.westland@xxxxxxxxxxxx