Re: Recommend sources for DC motors

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Re: Recommend sources for DC motors Christopher Tidy 08-11-2006
Posted by Christopher Tidy on August 13, 2006, 5:35 pm
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 Tim Leech wrote:
> On Sun, 13 Aug 2006 12:38:11 +0100, Peter A Forbes
>
>
>>wrote:
>>
>>
>>
>>>If it's really 24V you're after
>>>I've got a couple of 24V traction motors spare, anonymous but I'd
>>>guess at least 1 hp from their size, apparently unused.
>>>
>>>Cheers
>>>Tim
>>
>>Got any pictures? :-))
>>
>
> http://web.onetel.com/~duttondock/Pictures/motor-4.jpg
>
> Tim

Those look much more substantial than the Bosch range. The Bosch range
are pressed metal if I remember rightly.

Chris


Posted by Tim Leech on August 13, 2006, 1:30 pm
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 On Sun, 13 Aug 2006 12:38:11 +0100, Peter A Forbes

>wrote:
>
>
>>
>>If it's really 24V you're after
>>I've got a couple of 24V traction motors spare, anonymous but I'd
>>guess at least 1 hp from their size, apparently unused.
>>
>>Cheers
>>Tim
>
>Got any pictures? :-))
>

The output shaft is 3/4" dia, the motor body is 4" + dia.
AFAIR it's 3000 rpm @ 24V

http://web.onetel.com/~duttondock/Pictures/motor-4.jpg

Cheers
Tim
Dutton Dry-Dock
Traditional & Modern canal craft repairs
Vintage diesel engine service

Posted by Christopher Tidy on August 13, 2006, 5:32 pm
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Greg wrote:
>
>>Brian Reay wrote:
>>
>>>Anyone recommend a company that supplies surplus DC motors in the 1.5 to
>>
> 2
>
>>>HP range, 250V or so?
>>>
>>>TIA
>>
>>Bosch sell some. About £200 each I think. Somewhere I have their
>>catalogue. If you're still reading this thread let me know and I'll see
>>if I can find their phone number.
>
>
> I think you're referring to the Bosch GPA 750 which is officially 1HP and
> favoured by builders of combat robots, though they usually weld them up for
> added durability!. A quick Google should find all the info, Ellis components
> are I believe the only UK stockist and it's around £100, though that could
> have changed as I've been out of the robot wars thing for a while now. Oh
> and they are 24V, I would have thought 250V DC was a very odd voltage for a
> motor of this size.

That model number rings a bell. It may not be exactly what Brian is
looking for, but it just came into my mind. When I was interested in one
(for building a model submarine which I never built) Bosch offered to
sell me one direct. It was definitely more than £100 though. I think
Leeson might make some DC motors which run at a higher voltage.

Best wishes,

Chris


Posted by Greg on August 13, 2006, 6:58 pm
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> That model number rings a bell. It may not be exactly what Brian is
> looking for, but it just came into my mind. When I was interested in one
> (for building a model submarine which I never built) Bosch offered to
> sell me one direct. It was definitely more than £100 though. I think
> Leeson might make some DC motors which run at a higher voltage.

Ellis components are the UK distributor for Bosch electrical parts but trade
only, I think Parkside Railways stocks them at a mark-up of course:
PSelectronics@btinternet.com

Not a cheap motor and as others have said it's a pressed steel (relatively)
light weight frame, hence the robot wars people mig weld the frame together
to add strength, lightness is of course important to them as they have
strict weight limits so a more solid motor is not ideal.

Greg



Posted by Alastair on August 14, 2006, 3:58 am
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It might be worth contacting Parvalux - they do motors up to about
1=2E25kW in DC permanent magnet type.

http://www.parvalux.co.uk

Cheers

Alastair

Greg wrote:

>
> > That model number rings a bell. It may not be exactly what Brian is
> > looking for, but it just came into my mind. When I was interested in one
> > (for building a model submarine which I never built) Bosch offered to
> > sell me one direct. It was definitely more than =A3100 though. I think
> > Leeson might make some DC motors which run at a higher voltage.
>
> Ellis components are the UK distributor for Bosch electrical parts but tr=
ade
> only, I think Parkside Railways stocks them at a mark-up of course:
> PSelectronics@btinternet.com
>
> Not a cheap motor and as others have said it's a pressed steel (relativel=
y)
> light weight frame, hence the robot wars people mig weld the frame togeth=
er
> to add strength, lightness is of course important to them as they have
> strict weight limits so a more solid motor is not ideal.
>=20
> Greg


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