CL500M Clarkes Lathe soft jaws

[Simon TylerParticipant @simontyler66546]

Hi all

Does anyone know where I can get (or the size I need), soft jaws for the 5" chuck on the clarkes Lathe (CL500M). I asked Clarkes and they don't know (figures).

surely it's standard.

Thank you.

Simon

[Simon TylerParticipant @simontyler66546]

CL500M Clarkes Lathe soft jaws needed.

[JasonBModerator @jasonb]

You could try Rotagrip, they do softjaws for some of the imported chucks and that is where I got mine. They start at the bottom of the 2nd page and carry on on the next

[Simon TylerParticipant @simontyler66546]

Posted by JasonB on 07/08/2018 18:39:53:

You could try Rotagrip, they do softjaws for some of the imported chucks and that is where I got mine. They start at the bottom of the 2nd page and carry on on the next

Do you have the clarkes lathe?

[JasonBModerator @jasonb]

No, You will need to measure your existing jaws and see if there is a matching size, or give them a ring and they may know what fits.

[Danni BurnsParticipant @danniburns84841]

Hi all

Did anyone sort soft jaws for CL500M? Could you advise of spec please?

Thanks

[martin perman 1Participant @martinperman1]

As far as I'm aware they dont exist.

Martin P

[old martParticipant @oldmart]

Remove the jaws and carefully measure them, including the pitch of the teeth. Also measure the chuck diameter, is it 5" or 125mm? Post the dimensions and keep your fingers crossed.

[Danni BurnsParticipant @danniburns84841]

Hi Mart

I'd say the Chuck is 51/8" and pitch seems to be 6mm with (3mm gap & 3mm teeth)

Stamp reads: 7230 if that means anything.

Hows my luck?

[DiogenesIIParticipant @diogenesii]

It'd be helpful to know the width and slot dimensions.. ..If it's any help, the Warco 125mm ('Fuerda' brand) chuck soft jaws are 6.1 mm pitch, 56mm long, 16mm wide and 45mm high, with an 8mm high slot.. ..the bottom of the slot is about 6.8 above the ends of teeth / top of scroll..

[old martParticipant @oldmart]

It's surprising how many people don't know what pitch means. Please measure from the FRONT of the first tooth to the FRONT of the last tooth, no.7. The chuck is likely 130mm. We need the width of the slot in the jaw and the width of the jaw. The number is a serial number and the chuck body should have it also, it has no other significance.

[Danni BurnsParticipant @danniburns84841]

These are:

54mm long (not important)

16mm wide (same)

42mm high (not important)

bottom of slot to ends of teeth: 7mm (compared to 6.8) – do you have some that you could double check?

[Danni BurnsParticipant @danniburns84841]

39mm

[DiogenesIIParticipant @diogenesii]

It's looking good, I'll put some pics up as soon as I've sorted them out.. ..a few minutes (hopefully)

Edited By DiogenesII on 15/05/2021 21:04:48

[DiogenesIIParticipant @diogenesii]

I'd say your luck is pretty good.. ..the figures vary by some fraction of a mm here an' there, but mostly to do with holding calipers in one hand and camera in the other on the floor of a harshly-lit shed..

I'm too tired to work out the order & captions, so note that pitch is about 6.05, but they need to be a very free fit in the scroll, so that will be okay – they're also not the easiest things to measure, being curved.. 6.1 was from Warco's website, I got 36.32 over 6 teeth on the edges..

Edited By DiogenesII on 15/05/2021 21:49:45

[DiogenesIIParticipant @diogenesii]

To keep things clearer, thought I'd add this bit last.. ..they're from Warco, listed on the invoice as Soft Jaw Set SJ-11-125; they aren't listed on the website as that, so it might be best to ring them, and in any case it'd be worth checking the price, probably £thirty-something.. They are made by 'Fuerda'. .

Edited By DiogenesII on 15/05/2021 21:52:21

[Danni BurnsParticipant @danniburns84841]

Marvelous

Thanks very much

[DiogenesIIParticipant @diogenesii]

Doing a bit more legwork this morning, Rotagrip's CC13 look like they'd also probably fit;

Rotagrip – Soft Jaws Chineses 125mm Chuck

[Danni BurnsParticipant @danniburns84841]

Thank you again for your efforts. Always nice to have options.
I wonder if any sellers at shows have these? They could shift a good few pairs if not greedy £££

[old martParticipant @oldmart]

What happened to the op?

[Danni BurnsParticipant @danniburns84841]

What do you mean Mart? Op?

[EmgeeParticipant @emgee]

Posted by Simon Tyler on 07/08/2018 15:00:33:

Hi all

Does anyone know where I can get (or the size I need), soft jaws for the 5" chuck on the clarkes Lathe (CL500M). I asked Clarkes and they don't know (figures).

surely it's standard.

Thank you.

Simon

Danni, Simon who made the 1st post.

Emgee

[Danni BurnsParticipant @danniburns84841]

I wanted to update on this but couldn’t refind this original post. Which I have done now obviously.

Anyway – the jaws suggested by @diogenesii above (SJ-11-125se) are the same as the product 125/130mm jaws (Item No. 9157) on the Warco site. I have them in my Chuck cost £33.70 all incl. (I found a discount code on the site to give me a couple of quid off).

So if you have the same II chuck (photo above. BTW can someone remind me what this manufacturer’s name is please?) – you can buy it in confidence.

Regards

[DiogenesParticipant @diogenes]

Fuerda?

..another update is that the 125mm ARC ones also fit  – I dunno whether we established if these also fit the ‘K’ series? – anyway they’re only £27..

[old martParticipant @oldmart]

The op (original poster) dissapeared after the first few posts.

Unfortunately, there are a huge number of variations of chuck jaws. The generic K11 chucks which are common for several Chinese brands are the most likely to be interchangable, but not guaranteed. Even Pratt Burnerd chucks of the same nominal size may be either imperial or metric and the jaws are different.

I bought a German 137mm chuck from a Deckel, in perfect order, but only inside jaws. The K11 125mm outside jaws were the same scroll pitch and very similar and I reworked them, even trimming the base of the teeth notches. They fit pretty well, but no match for the proper jaws.

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