Lost key for Simat 101 crank chuck

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

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

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

David

.

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.

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

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

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

.

My apologies, Bill ... I missed that important point.

MichaelG.

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.

Hi Andrea,

Update please.

Have you found your chuck key?

Bear..