Angling for 90° - tangential pivot tonearms

[Adelmo]

Adelmo,

Your arm looks better with each new version.

There’s a Dutch guy in Amsterdam who has a deal with Dutch customs - he gets all the bearings they confiscate.

Have you checked Italian ebay for bearings? Did you make a lighter wand?

If you used the Kuzma bearing arrangement, you would have to pay yourself $10,000.

Doug

hI,

I got all the parts for the new lighter wand, now need to find the time to finish it.

I also got the new parts for the ceramic bearings , also need to find the time to finish it.

Completed the TA lift.

Rgds

Adelmo

 

[Adelmo]

Hi Adelmo,

Many years ago I did some testing of different bearings for my linear tracking arm.
I did try some full zirconia bearings. They were OK but not brilliant. Much better were the hybrid bearings from Boca bearings. These are silicon nitride and 440 stainless steel. They were about twice the price of the zirconia bearings but much lower friction and also much more consistent in friction as they rotated. More importantly they sound notably better.

Niffy

Hi Niffy,

I have careful assembled the ceramic bearings in the secondary shaft of my TA. I paid lore of attention to the bearing house allowance and also to the shaft. Must slide smooth but not tight not lose. I also pre load checking the best pre load for turning and no play.

Mechanically speaking it is better, also the new design make more easy to pre load bearings.

Changed the thread of the V motion bearing as I stressed them too much lately and play Rickie Lee Jones, Pirates, 1981 LP. I will not dare to say it sounds better yet but for sure not worse at all. I compared the same music since I have the same CD as well, but CD did sound too much worse. Hard to say, I think the CD have been poorly mastered comparing to the original LP.

In the end I will keep the things for a while as they are, in future I may try other bearings as suggested.


Tks n rgds

Adelmo