Hardinge HLV H

Hello, I won a Hardinge hlv h in an auction, the pity is that I had a very complete cabinet with all its tools that was auctioned in another lot, which I could not get, I only have two tailstocks and 60 clamps, half metric and half in inches, the good thing is that the lathe works perfect, I wanted to buy chucks of three jaws and four, but I have no idea where to look and how they have to be, I would appreciate help, thanks and greetings.

Have a look at lathes.co.uk website. This is a huge reference site that many of the members on this site go to with queries such as yours.

Hope thats useful. Regards

Does your lathe have the threaded nose, or the Taper nose on the lathe main spindle.

The difficulty is that the Hardinge spindle nose (a 4 degree taper with locking pin) is pretty much specific to that brand and backplates and chucks to fit are hard to find. There are some available (not cheap!) in the USA e.g.

**LINK**

but I've not seen them advertised in the UK or Europe - would also be interested to hear if anyone has a source!

Another option is to make one - Google Images search for "Hardinge taper drawing" will find the spindle dimensions...

A small chuck could also be mounted using the 5c spindle taper e.g.

**LINK**

Hi, thank you all for replying,
Mike Hurley, I have had contact with lathes.co.uk before, I love the site.
Neil Lickfold, it has a tapered tip.
Bikepete, thanks for the links, they are both good, the small chuck with 5C can be a good solution, but I would like to have several different ones, another question is whether to look for it used and risk buying something damaged, my problem is that if I buy in UK or USA I have the problem of customs cost, and finding it in Europe will be difficult, I have seen this page https://www.shars.com/catalogsearch/result/index/?cat=661&p=4&q=hardinge+lathe+chuck+mount+a5+4+degree+taper I do not know if any can be worth to me, greetings.

Hi Fernando, I checked the page you found at Shars.com, but I could only see chucks there with the D-series mounting. So unless I missed something, those will not be relevant for your lathe.

Buying used is risky. I have the older version of this lathe (the narrow bed HLV) and the chucks that came with it are very worn. Used chucks with the Hardinge taper mount could also be worn, and are rare, and will still be quite expensive...

Do you have another lathe which you could use to make a new backplate yourself?

Congratulations by the way - you have a great lathe which should be a pleasure to use.

And remember, you can do a LOT of work with just collets, until a solution can be found for the chucks.

If you already have a set of ER collets, by the way, you can use an adaptor like this:

**LINK**

and similar items are also available for ER 40 collets. This lets you cover a big range of diameters without spending a LOT of money on a full set of 5C collets...

I have never seen a chuck on a Hardinge backplate in good condition. Like Pete above I have the older HLV. This had a chuck with it that was worn well past the dangerous to use stage. The taper mount was built into the chuck but I was able to machine away enough to allow me to mount a Chinese 100mm 3 jaw chuck which works okay for the odd time I need it.

David.

Hi Fernando, have a look at this website that show how to make one.

http://www.frets.com/HomeShopTech/Projects/Bison/bison.html

Cheers

I bought a 4-jaw for my HLV in very nice condition but it was a long time coming. The original Hardinge (made by pratt) 3-jaw is well past it's sell-by date.

It's very easy to turn the hardinge nose taper to make chuck back plates. I've made a faceplate with an integral mount and two chuck backplates. The 3 and 4 jaw chucks I got with my HLV were in a very poor condition, although I managed to get some soft jaws and a new scroll from Rotagrip.

Indeed it is.

That was this mornings job, spurred on by this thread.

David.

Hi, probably the most interesting thing is to make the back plate, but I don't see myself able to do it properly, I have looked at http://www.frets.com/HomeShopTech/Projects/Bison/bison. html and it does not seem difficult, I have to think about whether to buy it or make it, I have 60 collet to make some things, the lathe was sold from the Feltham factory in UK, but it was manufactured in the USA, according to the manager of the Philips factory in Germany, where it has spent all its life, I commented that it was little used and well maintained, the little that I used it is very quiet and everything works very smoothly, I have not used it with the brake, as it needs compressed air connection, what tools do you consider necessary basic and essential to be able to do a little of everything?

Hello, does anyone know what year the serial number 642 is, according to the dimensions of the drawing, can the drawing be used to make a chuck and fit it well on the lathe? what is the purpose of the nose cover? thanks for your help, best regards.

The nose cover protects the spindle outside taper when using collets in the spindle. It would otherwise be vulnerable to damage.

The drawing could - thoeretically - be used to produce a chuck mount but the fit is so fine that there is no substitute really for having the spindle present for bluing or a decent dummy taper to use as a gauge.

ZMT had a gauge for the grinders to re-finish the spindle taper. It had a pair of marks on it that bracketed the spindle witness mark when the taper was ground to the correct size.

The nose cover also stops coolant flying everywhere, in use the opening is at the bottom so the coolant can escape.

I believe that there is a difference between the British and American built machines. The British Machines have a 4 degree taper as opposed to the 3 degree 59 minute 30 second of the American machines.

Not a problem if you are working to the taper on your machine.

David.

.

As a ‘bystander’ I find that intriguing, David … especially in light of the manuscript change on the drawing that Fernando posted.

I wonder what the tolerances are

…. Many lesser firms would probably struggle to keep within thirty seconds of arc !

MichaelG.

Is it the 1st of April

Tony

With apologies for quoting myself

It is worth noting how small an angle 'one second of arc' really is.

As a sanity-check; make a little target with a 1mm wide line on it [when I did this, I just filled-in alternate spaces on a section fom an IKEA paper tape-measure] ... Then view that target at a distance of 206.265 Meters. ... At that distance, 1 second of arc is subtended by 1mm.

MichaelG.

.

Ref. __ https://www.model-engineer.co.uk/forums/postings.asp?th=115977

Edited By Michael Gilligan on 27/09/2021 09:08:37

HLVs are lovely machines. 5C collets are readily available from a few sources, ZMT in Nottingham specialise in them, and I'm pretty sure Hardinge USA still supply parts. As the Lathes.co.uk site will tell you, there's a good few clones too.

Personally, I'd try and keep the spindle nose original. It is a very well made system, as well as jaw chucks you can get collet closers for big or internal gripping collets. It also has some really nifty tricks for screw cutting, easily the loveliest machine I've ever done full threads to a shoulder on.

I'd love to track a good one down one day. The one I regularly use has, sadly, been hideously neglected and abused, but you can tell it was once a superb machine. They did some very nifty auto and capstan versions too.