sourcing worm gears

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sourcing worm gears

This topic has 9 replies, 6 voices, and was last updated 23 July 2010 at 11:31 by John Hinkley.

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21 July 2010 at 19:17 #53705
John Hinkley
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@johnhinkley26699
Forgive me if this question has been asked (and answered) on this forum before – a search revealed no result.

I am in the process of making a simple rotary table for my new mill. Originally I hadn’t intended to make it with a worm and wheel drive, but have changed my mind. I have spent many fruitless hours searching the web for a source for the said worm and wormwheel, all to no avail. Does anybody out there know where I can obtain a pair, preferably in the UK and at reasonable cost, bearing in mind that I live in France and some suppliers won’t post here?

Thanks in advance.

John
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21 July 2010 at 19:17 #5125
John Hinkley
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@johnhinkley26699
21 July 2010 at 19:46 #53706
dcosta
Participant
@dcosta
Hello John.

There is a place:

Another place:

Yet another place:

The last one, I think, has distribution in France.

See here, please:

Good luck

Dias Costa

Edited By David Clark 1 on 21/04/2011 09:42:49
21 July 2010 at 20:01 #53708
John Hinkley
Participant
@johnhinkley26699
Thanks Dias, I’ll give them a try.

John
21 July 2010 at 20:37 #53709
JasonB
Moderator
@jasonb
Another one you could try is GMB Assoc I’ve used them when Boston gear parts are spec’d on American model designs. HPC as mentioned above are very good as well.

Jason
21 July 2010 at 22:53 #53714
Keith Long
Participant
@keithlong89920
Hi John

College Engineering (http://www.collegeengineering.co.uk) list casting sets for 6 inch and 4 inch rotary tables. For the 4 inch certainly they list the worm and wheel as being available separately at about £15 +vat for the pair. Doesn’t show those for the 6 inch but a phone call or e-mail should provide the answer.

Keith
22 July 2010 at 00:51 #53719
Gone Away
Participant
@goneaway
I realise you’re looking for something more local John but you could at least checkout Stock Drive Products in the US at:

http://www.sdp-si.com/

They have a vast range of both imperial and metric components and while they used to be mainly commercial/industrial, they are handling small orders (online, billed to a CC) from individuals these days. They use regular mail now and ship outside the US.

Get them to send a copy of their interactive CD while you’re at it.
22 July 2010 at 16:07 #53747
John Hinkley
Participant
@johnhinkley26699
Many thanks to all those who have taken the trouble to reply to my message. I will follow all the leads and hopefully find what I’m looking for.

John
22 July 2010 at 21:28 #53760
Sub Mandrel
Participant
@submandrel
Hi John,

I have made worm wheels by free hobbing, using acutter made from silver steel just slightly bigger than the worm. Just minimal relief applied with a file.

The work well, but two caveats – gash the blank first to ensure you get the correct number of teeth (I have a 61-tooth gear as a reminder). Secondly, get some engraving brass – the first, expensive sheet of 1/4″ brass I bought produced awful results but the engraving brass worked perfect first time.

I have made plenty of gear wheels using the resulting worm wheels and all have been OK, so I’m happy with the result.

Neil
23 July 2010 at 11:31 #53776
John Hinkley
Participant
@johnhinkley26699
Thanks, everyone. I have ordered a pair today from College Engineering to be delivered to my daughter in the UK, hopefully in time for her to bring them over in August!

Regards,

John
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