Weiler Commador rumbling gearbox

[peterve]

I recently bought a Weiler Commodor 7,5Kw The gearbox makes a rumbling sound
When you disengage the clutch the sound changes a bit but still bad
I think it is a bent tooth on a gear. I had that on a Poreba too once and a new gear solved the problem
I havn't got a chance to listen to several speeds
But I opened up the gearbox and looked at the gears but till now I found no damage on any of the teeth
Also the splines look to be in good shape

Any body got a clue

Peter from Holland

[SAG 180]

Ball bearing failure on one of the shafts?

[peterve]

Originally Posted by SAG 180

Ball bearing failure on one of the shafts?

I hope so because that would be the easy way out
Another possibility I thought of is a bent shaft
If I have time tomorrow or today I make a video of it with sound


Peter from Holland

[viilari]

I have my Hembrug DR1 strange rumbling sound when use low spindle speeds.
Reason is aluminium chips in backgear oil reservoir,i clean oil reservoir and
change new oil,now runs smooth.

[peterve]

Here is a movie with sound of the rumbling ratling what ever you want to call it
Any ideas ???
www.veltmanmachines.nl/diverse/Movieweiler.MPG


Peter from Holland

[Kees]

It is simple, there are only 2 sources: bearings and gears.The sound is equal with the speed which is most likely caused by a gear.With a bit of luck it could be a bearing with the housing for the rolling parts missing, I had that once.
I asume this lathe has all the drive-parts in the mainhead, so you must be able to found where the sound is coming from.(main spindle, incoming axel or shift axis).
Is the sound also there when the motor is running, but the main spindle not ?(in free position)And if the lathe is running backwards?

[Arno]

Originally Posted by peterve

Here is a movie with sound of the rumbling ratling what ever you want to call it
www.veltmanmachines.nl/diverse/Movieweiler.MPG

I cannot hear as the QT jumps to the end after 1 second.
Even rebooted my system. No change.