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Audiomeca Romance

Hello dear Audiogon forum dwellers,

I have an Audiomeca Romance turntable. The tip of the piece which is in the sleeve of the platter is extremely damaged(do not ask how :). I think because of this the platter is now destabilized and is oscillating badly. I hopelessly need the measurements of this piece. Indeed the length is enough, I think.

The piece I refer to can be seen on the diagram of the Audiomeca Bella turntable below. It is just above the heart.

http://www.tnt-audio.com/jpeg/bellacutaway.jpg

I tried to contact Mr. Pierre Lurne with no success.

Any help is extremely appreciated.

Thanks.
monolit
monolit OP
5 posts
 
Thank you very much Manitunc for your answer. You are right a ball bearing can be used, but the problem with it is, I think, I cant match the exact center of gravity point. You can ask why I am thinking this way, because the platter seems destabilized. The edge of the platter seems to move roughly 1 cm up and down while spinning. Is this normal for this table?
manitunc
795 posts
 
the actual bearing shaft may be slightly bent. How did the damage occur. was there an impact to the platter or bearing? Getting that shaft straight may be a problem. Is it one side that is consistently lower than the rest or is it random? Are you using a bearing that is the same size as the bearing shaft, or something smaller?
monolit OP
5 posts
 
The bearing shaft is not bent, but the tip is crushed. I have had one replica made by my friend who works at a lathe. But there is a problem with the height I guess. Because the tip is crushed it is impossible to know the exact size. We made it approx. the same size.

The side that is lower is random. And I am not sure of the bearing. There was no bearing. Is it possible that it is bearingless model. It spins on top of the tip?
manitunc
795 posts
 
Here is a paper by Pierre Lurne, the designer of the turntable that discusses his bearing. I think that you have to get the right taper on the point of the shaft or it will be able to move on the seat. How high off the plinth does the platter run?
http://www.enjoythemusic.com/magazine/manufacture/0208/index.html
nandric's avatar
nandric
4,086 posts
 
I owned the Audomeca J1. There is a carmic ball fastened
in the platter. The top of the axle had a kind of hole which centered the 'point' of gravity for the platter. Your machinst need to see and measure exactly the axle by
someone who owns the Romance. With his lathe he should be able to produce the same axle from (hardened) steel. You will also need some grease because you can't use oil for
this bearing.

Regards,
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