Cowells 90 HS – 3 jaw chuck

[Robert BubuParticipant @robertbubu66700]

Hi all

I bought a Cowells 90 HS lathe, I would like to know if this type of 3-jaw chuck has reversible jaws?

Best regards!
Robert

[Robert BubuParticipant @robertbubu66700]

3 jaw chuck has reversible jaws?

[JasonBModerator @jasonb]

If you take the jaws out and look at the teeth at the back if they are a flattened oval shape then they can be reversed if they are a curved shape then separate reversible jaws are needed.

[Robert BubuParticipant @robertbubu66700]

I understand. Thanks for the quick response JasonB

I have to open it, if they are not reversible, where can I buy a set?

Edited By Robert Bubu on 03/11/2021 16:51:08

[EmgeeParticipant @emgee]

Robert

If the spindle nose is 40mm diameter then the Emco 5 chucks appear likely contenders as a replacement, provided of course the 3 fixings are positioned as Emco and M5.

The early Emco chucks that operated with a drill chuck type key had reversible jaws.

Emgee

[Robert BubuParticipant @robertbubu66700]

I don't understand what you mean, this chuck is Emco?
I thought it was the original Cowells chuck

Edited By Robert Bubu on 03/11/2021 17:34:41

[EmgeeParticipant @emgee]

No Robert, I said an Emco 5 chuck is a contender as a replacement if spindle nose and chuck fixing PCD are the same.

Emgee

[not done it yetParticipant @notdoneityet]

I thought it was the original Cowells chuck

Contact Cowells? They should know? They should be able to offer a set, if available?

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Robert Bubu on 03/11/2021 17:34:14:

[…]

I thought it was the original Cowells chuck

.

I suppose it may have been supplied by Cowells … but it’s not what they currently show as their 3-Jaw

Have a look through the ‘Gallery’ and then [if you are sitting quietly] check the prices

**LINK** : http://www.cowells.com/gallery.htm

MichaelG.

.

Edit: __ But please look here : https://pennyfarthingtools.co.uk/60mm-tml-key-scroll-chuck/2019/01/03/

Edited By Michael Gilligan on 03/11/2021 18:34:53

[JasonBModerator @jasonb]

Cowells is M14 so the larger Emco chucks won't fit, you may be OK with a Unimat 3

This is what the reversible jaws look like from the back (Emco 3 chuck)

[peak4Participant @peak4]

I have one of those chucks myself. On mine, the jaws are reversible OK, just be careful about using them too extended as teeth on the reverse are quite small and easily broken if they are not all engaged.

Mine came with a Simat 101, back in the early 80s when they were being sold from Norfolk.
I think at the time, they were also offered by Cowells.

Bill

[JasonBModerator @jasonb]

just looked at an old Cowells catalogue I have from the late 80s and it shows a very similar chuck to the OP's. they also show the type that uses two pins much like an emco. Neither are shown with additional jaws so assume they are reversible.

[Robert BubuParticipant @robertbubu66700]

Thank you very much to everyone who answered me.
Tomorrow I will take some pictures and I will attach them, I have some more questions about the lathe
Please tell me how I can attach pictures in the topic, I tried, but I can't

[Michael GilliganParticipant @michaelgilligan61133]

Start here, Robert : **LINK**

https://www.model-engineer.co.uk/forums/postings.asp?th=103028&p=1

MichaelG.

[JasonBModerator @jasonb]

Along the top of the box where you type your message are two rows of icons, when you get to where you want the image click on the camera icon 2nd from right on the top row. This will bring up a list of your albums, click the album and then choose the image name and click it then OK.

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