Lost key for Simat 101 crank chuck

[Andrea GiovanniniParticipant @andreagiovannini28573]

Dear friends

I need your help because I have lost the key of the chuck on my old lathe Simat 101. It is a crank chuck with 72 mm diameter. I am not able to post a picture of it because I am not expert. So I'd like to know if there is a seller willing to sell this key or someone that has one and give me for money.

I canot use the lathe without this item.

Please give your suggestions or your help. Thank you

Andrea Giovannini

Alessandria Italy

[Andrea GiovanniniParticipant @andreagiovannini28573]

I need help to find the item

[EmgeeParticipant @emgee]

Is it a drill chuck type key ?

If so what diameter are the holes in the chuck where the key fits for opening/closing ?

Emgee

[David George 1Participant @davidgeorge1]

Hi Andrea I have a K1 chuck key that has a 4mm nose is that what you need.

David

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Emgee on 10/11/2018 19:24:02:

Is it a drill chuck type key ?

.

On the other thread **LINK**

https://www.model-engineer.co.uk/forums/postings.asp?th=138783

Peak4 provided an useful photo of the key design.

… I've not seen one like it before It's similar to drill chuck key but not a bevel gear !!

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

See the top-left item on the 'Accessories' here: **LINK**

http://www.rejon.co.uk/manix_ml210.php

MichaelG.

.

Edit: Couple of photos of the chuck, on the Record version of the ML210, here:

https://www.thewatchforum.co.uk/index.php?/topic/63667-finally-some-lathe-work/

Edited By Michael Gilligan on 10/11/2018 22:47:26

[peak4Participant @peak4]

Posted by Michael Gilligan on 10/11/2018 22:33:43:

See the top-left item on the 'Accessories' here: **LINK**

http://www.rejon.co.uk/manix_ml210.php

MichaelG.

.

Edit: Couple of photos of the chuck, on the Record version of the ML210, here:

**LINK**

Edited By Michael Gilligan on 10/11/2018 22:47:26

Also on the other thread, Rejon replied to me and said they couldn't supply one; at least that's what I took their reply to mean.

Bill

[Martin ConnellyParticipant @martinconnelly55370]

Short term fix might be a strap wrench and tommy bar. I have a small chuck with the outside ring knurled and a tommy bar hole and that is all that it needs for a good grip.

Martin C

[Michael GilliganParticipant @michaelgilligan61133]

Posted by peak4 on 11/11/2018 00:30:43:

[ … ] Also on the other thread, Rejon replied to me and said they couldn't supply one; at least that's what I took their reply to mean.

.

My apologies, Bill … I missed that important point.

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

At least I have learned something from this discussion:

The geometry troubled me a little, as I have only really considered quite narrow 'contrate' wheels … a little searching revealed that this might be better be termed a 'Crown Face Gear' and that the geometry can indeed be a little complex: **LINK**

http://spiralbevel.com/crown_face

[ not that I would really expect the gearing of chuck and key to be made to close tolerance ]

MichaelG.

[Grizzly bearParticipant @grizzlybear]

Hi Andrea,

Update please.

Have you found your chuck key?

Bear..

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