Thoughts On Turntable Clamps And Weights

@terry9 Thank you for directing me toward these products.

I am looking at the Recommended Brands 13mm ID Bush Bearing. 

The Bush is looking like it will require a shaft close to 22mm ID which I assume will need to be designed to enable the potting of the part and allow for a air supply to be connected.

These are dimensions that I feel confident of being not too far from from the alternative dimensions to be selected.

I am keen to pass on the link and receive the feedback from the Engineer.

Thanks for reporting back. I think you correctly assessed the info… light weight clamp. I know my TT would not do well with a heavy… perhaps even a light weight.

@pindac

I think you mean ’thrust bushing’. Only a very few commercial TT offer an air cushion in all three dimensions, as does a thrust bushing, and they are all well north of 100K.

Their 35mm thrust bushing can support up to 60kg, so safely 45, which is what I use. Supports 60kg and resets a radial force a hundred times more than we need. The perfect solution in one piece.

I have dealt with New Way for years, and they are very good to deal with. If I were doing it again, I would get them to make the spindle as well - expensive, but guaranteed to work to the highest specification.

You can afford it when you are saving 100k !

@terry9 Thank You again, the penny has completely dripped and I am a duck to water on this one.

I can not see any reason to avoid making this info known, to both of the individuals I spend time with who produce TA's and work on TT's, I see this info as something they may seriously consider adopting. There selected Bearings used on their TA's are extremely 'state of the art' and 'Rocking Horse Poo' to find a small in qty supply source. 

Such an idea as yours must surely stimulate their thoughts, as it has my own.  

Terry, no, I am not talking or thinking about a loss of high frequencies in the audible range. Suffice to say I prefer the L07D without its peripheral ring. Any adjective I choose is bound to give someone somewhere the wrong impression. Language fails us.