Looking for tonearm inspiration

My apologies for the confusion, my post above is under the wrong OP, I will resend it attached to the correct one.

several grades? : how many grades and where are stated ?

@rauliruegas  If memory serves the bearings in the SME 5 are the hardest commercially available. The bearings in the Triplanar are not commercially available; Triplanar has a security clearance to get the bearings they use. Only one supplier exists worldwide that makes them.


Specifically as it was explained to me by Herb Papier, the problem he ran into was that over a period of years he noticed that many arms needed to be readjusted. He found that the reason was that the bearings would fail over time in the field- due to use and minor abuse the bearing points would blunt. Since he wanted to reduce friction, he used the smallest bearings he could find which made the problem worse. So brute force was applied (IMO); he found and installed the hardest metal bearings made anywhere, which solved the problem.


SME deals with the reliability issue by having physically larger bearings. So their arms tend to have more friction.

@atmasphere  :Again because you did not answer in precise way not even mentioned about:

""  wich its radial play, surface finish, material, tolerance ( ABEC 5,7 or 9 ), starting torque which affects the swinging of the tonearm up and down and following eccentricity of the record, noise level and vibration in bearings which adds distortion, how precisely the ball bearings are fitted into the housing and shaft of the tonearm, vertical/horizontal sensivity etc, etc.."""

""""  I know that the V makes the XV-1s shows at its best. How the Triplanar and why surpass that excellence grade quality performance mounted in the 20/2? """"


After answer those please tell us the Triplanar friction levels ( or at least its sensitivity in the vertical/horisontal planes. ) that you don't say it but try to tell is lower than the V.

If you don't have a specific answer is useless to post nothing about.

R.

@atmasphere  : You can't have a specific true answer because your statements are just blanket statements with no true foundation.

""  If memory serves the bearings in the SME 5 are the hardest commercially available. The bearings in the Triplanar are not commercially available...."

That I know SME never stated about. Where is your link on that precsie tonearm SME characteristic?


"  Specifically as it was explained to me by Herb Papier, the problem he ran into was that over a period of years he noticed that many arms needed to be readjusted. He found that the reason was that the bearings would fail over time in the field- due to use and minor abuse the bearing points would blunt. "

many arms? which tonearms and after how many number of years?



"  SME deals with the reliability issue by having physically larger bearings. So their arms tend to have more friction..""

SME ? where are the facts that can prove it.


" tend to have more friction. ", again where are the facts that can prove it and how much more friction. Btw, which its original friction levels? which SME model are you refering?

Seems to me that you are spreading false information against a very well regarded tonearm manufacturer as is SME  and you are an audio item manufacturer ! !

R.

That I know SME never stated about. Where is your link on that precsie tonearm SME characteristic?

That was stated to me by my local dealer. At the time he was close to the people at Sumiko who were importing the SME stuff. One of his salesmen, Allen Perkins, was hired off from his store by Sumiko. Allen later left Sumiko and started his own business, part of which was importing Lyra.

If you don't have a specific answer is useless to post nothing about.

My answers are very specific but I think you are right, 'is useless to post nothing about' since its obvious you are simply attacking for the joy of it.