Different approaches to Tone Arm design

While I was following the Orpheus thread I learned about some of the different types of Tone Arm design.

When these differences where alluded to I was only able to get a hint of what details made the differentiations between enginering approaches that mattered most in those designs.

Please excuse me what follows now will be clear as mud.

Those impressions included which bearing type or bearing placement was desirable

whether it was a one bearing design (uni-pivot?) or multi (what do you call that ?)

Linear or Non-linear tracking

Floating or oil damped ? I not sure if this is tone arm related

rare earth magnets

VTA adjustment capabilities

and a can of worms full of others etc. etc.

These desciptions of mine are abstract impressions and confused.

What I hope for in this thread is to explore with your help and patience the details, options and design approaches that distinguish one type of arms theoretical advantages over anothers.

So hopfully at the end of the thread I will be able to understand arms better than my ass from my elbow !

Listening to The Children of Rarn Suite-Tyranasaurus Rex
Marc Records 10 " EP Vinyl English Import

Best Regards

Groovey Records
For what it is worth, what you refer to as mult bearings are called captured bearings, also referred to by the description of the bearing type, ball and race. Some refer to this as a gimball bearing. Clear as mud, as you said. Do not forget knife edge bearings, as in the older SME and SAEC designs, and fluid bearings, as in the Well Tempered. Then there are the pantograph linear trackers, such as the Garrard Zero 100. I am sure there are many more.
Sorry,not falling for it?Don't feel dissed,you're doing a good job!BTW,go hear Reina in the Big Apple!He tells me he's making it big. Best!
Sir Speedy

Not falling for what ?

Thanks Viridian

Gimbal Bearing were used in the nav systems for F15 Avionics Electronic Gyro
(thats not a greek sandwich)

is there advantages or trade offs between uni or captured bearings?

Are captured bearings in a cup or race like a bicycle wheel hub?

whats a fluid bearing like

All the best


Listening to Santana Abraxas Columbia Records 180 gram reissue
Sorry Groovey.I thought you were not serious.My mistake.
Your guys needs to take a stroll over www.diyaudio.com to see various kinds of tonearm designs:
Hello Sirspeedy,

I am serious I need to understand this better then I do
Your real names Mark ? Yes

Well, if you could help out on this thread I would be beholding I have to make an informed decision and I always thought there are no stupid Questions! Maybe you could help me rephrase it and break it down more coherently ?
Best regards
Groovey,my best advise is to try to read up on as many of these designs as you can.Then try(if possible)to hear some,in systems.Not easy,these days.Look for as little bearing resonance as posible,since this will color sound.The business of ball race bearings/uni-pivot/straight line trackers etc,all have their followings.You really can make a good case for either of them.
Stay with the lowest resonant bearing design,with a good over-all design concept,and one that has been around,and perfected for awhile,and you will have your winner.BTW---usually damping(laterally)is NOT desireable sonically.
Good luck!
There are many excellent designs for tonearms and execution may even play a greater part than design, but really the design can only be considered within the context of a specific cartridge and turntable as the three make up a unified system. For instance, the SMEV is an excellent captured bearing arm, as is the Linn Ittok, but the SME tends to sound too warm on a Linn Sondek, but just right on an Avid or SOTA.
Thanks to all,

I have read your comments and will heed yor words

Any other references That talk about TA design would be very helpful

Thanks Viridia, SirSpeedy, Nghiep and those of you who emailed me with most excellent advice

Warm Regards

Listening To

Ein Sommerbachtstraum-Felix Mendelssohn-Bartholdy
Arturo Toscanini Carnigie Hall 1947 NBC Orchestra RCA 26.41314 AF
Toscanini Editions