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View Full Version : FOR SALE: Servo Spec gearbox's ---- Any offer considered



Jimmybristol
19-05-2011, 02:56 PM
I have the following:

Nuegart PLE40 planetry gearbox's avalible:


1x 25:1
1 x 8:1
2 x 4:1

I havenet used these, all seem to turn easilly, and have a rated back lash of <5 arc minutes.. a quick internet search will show you these gear box's normally sell for £150+...

I have used these gearbox's before and they run well upto 10,000 rpm...

I am open to ANY offers for these, first reasonable offer will be accepted.

James
4040

Jonathan
20-05-2011, 01:06 AM
I'm interested in these...they look good for adding axis' to my machine :smile:. As it happens I've just been designing it today, but with a double timing belt reduction to get the required torque. These gearboxes would simplify it.

The output torque is sufficient with the 25:1, however the backlash according to their website is <19 arcmin on the output shaft. At 25:1 that's upto about 8 degrees on the input shaft - seems like a lot, am I reading it wrong?

http://www.neugart.de/download/gb/PLE/dim/PLE_40_gb.pdf

http://www.neugart.de/download/gb/PLE/Katalog_PLE.pdf

Jimmybristol
20-05-2011, 09:06 AM
Jonathan,

You have an interesting point on the back lash, when i used one of these it was with back lash compensation, once i had set it up i never had to adjust it - it seemed very consistent.

I can not argue with your maths but seems a lot higher than i experienced in reality! Remember these are German, made in Germany so the quality is very good and the specification very conservative.

If you are still interested I am open to offers.... And we can combine shipment with the bolts, screws etc....

Jonathan
20-05-2011, 11:57 AM
You have an interesting point on the back lash, when i used one of these it was with back lash compensation, once i had set it up i never had to adjust it - it seemed very consistent.

I see, that's promising. The problem for me is that backlash compensations does not help with the play caused by the backlash. For a rotary axis used with a router or milling machine I think no play is a requirement, otherwise the cutter may vibrate relative to the work-piece? I think is especially true if it's used to rotate the spindle itself, which is my intention. Say there's 100mm from the axis of rotation to the cutter tip, with 19arcmin that's quite a lot of movement: pi*100*19/60/360=0.28mm.

What is the motor input shaft diameter for each of them?


The PLE is the perfect economy alternative to the PLN. We have specifi cally
designed this planetary gear for all applications in which a particularly low backlash
is not necessarily the main focus.

No idea really what to offer you for them. I'm probably only interested in the 25:1.

Jimmybristol
20-05-2011, 12:09 PM
The input is the "clamp" style shown, the internal bore is 12mm, when i used one i put a simple sleeve on the shaft.

If you are interested make an offer....

Jimmybristol
20-05-2011, 12:09 PM
I will PM you....

Jimmybristol
29-05-2011, 08:26 PM
So I have the

1 x 8:1
2 x 4:1

Left... Looking for a good home... so I am open to offers... all 3 for £40 including postage??? any takers????

As Johnathan has said the rating on these things (having received his) seem to be conservative!!!

Many Thanks

James

Jimmybristol
29-05-2011, 08:28 PM
Have a look here....

http://www.acpd.co.uk/cgi-bin/site-editor.pl/8/-ecommerce?action=item;item=PLE40-XX;eid=816369

James

Jonathan
29-05-2011, 09:06 PM
1 x 8:1
2 x 4:1

Left... Looking for a good home... so I am open to offers... all 3 for £40 including postage??? any takers????

Hmm, paid a little more for mine :lol:. I'm tempted to get the rest now.

Jimmybristol
29-05-2011, 09:12 PM
Well.. be tempted.. sure we can come to a deal :)....

James

Jimmybristol
29-05-2011, 09:17 PM
I am trying to free up some space... someone keeps waving dustbin bags at me.... so as I said OFFERS WELCOME ON EVERYING.... Just want a bit of cash back so that I can get my self a new toy when shes not looking ;o)

James

Jimmybristol
31-05-2011, 12:04 AM
Sold £as part of deal