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Thread: Zeta tonearm strip down and bearing change.

  1. #11
    Join Date: May 2011

    Location: Glasgow

    Posts: 7,718
    I'm Brian.

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    Very interesting thread this with plenty of pictures . Well done Jamie
    Regards
    Brian

    Sell your cleverness and buy bewilderment . (Rumi )


    Korus Computer Audio music server
    JustBoom DAC . HRT Musicstreamer 2
    Amplifier : Sony TA FB740R
    Speakers : Tannoy 637
    Interconnects : MS Audio / Klotz MC5000 .
    Speaker cables : Western Electric 16AG

  2. #12
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,624
    I'm Geoff.

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    Yes, the bearing adjustments would certainly be different with five smaller ball bearings.

  3. #13
    Bigman80 Guest

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    Any benefit to having 5 bearings? Just thinking that now you're well versed it may be worthwhile experimenting.

  4. #14
    Join Date: Sep 2014

    Location: brighton uk.

    Posts: 4,737
    I'm jamie.

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    Quote Originally Posted by Bigman80 View Post
    Any benefit to having 5 bearings? Just thinking that now you're well versed it may be worthwhile experimenting.
    probably,after all they changed them for a reason,problems with early sticky bearings from what ive read,id have to have new cups machined as they have a bigger internal diameter along with new cones.
    i doubt after all that id notice a difference and the cost would be too much i think and with new bearings in,especially ceramic, sticky bearings is the last thing id have
    My System
    John Wood KT88 Amp.
    Paradise Phono Stage
    Sony TTS-8000 Turntable.
    PMAT-1010 MK6 Tonearm.
    Ortofon Cadenza Bronze
    Sony X555ES Cd Player
    Yamaha NS1000m Speakers

  5. #15
    Bigman80 Guest

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    Quote Originally Posted by jamie123 View Post
    probably,after all they changed them for a reason,problems with early sticky bearings from what ive read,id have to have new cups machined as they have a bigger internal diameter along with new cones.
    i doubt after all that id notice a difference and the cost would be too much i think and with new bearings in,especially ceramic, sticky bearings is the last thing id have
    Ye I can't imagine those bearing cups would be cheap to make. Too specialist. This is a cracking thread mate. Makes me want to buy something just to fix it!!!

  6. #16
    Join Date: Sep 2014

    Location: brighton uk.

    Posts: 4,737
    I'm jamie.

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    ha ha,its all good fun mate,i reckon i did the zeta just in time as the Japanese monster is in customs at the moment!
    My System
    John Wood KT88 Amp.
    Paradise Phono Stage
    Sony TTS-8000 Turntable.
    PMAT-1010 MK6 Tonearm.
    Ortofon Cadenza Bronze
    Sony X555ES Cd Player
    Yamaha NS1000m Speakers

  7. #17
    Bigman80 Guest

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    Quote Originally Posted by jamie123 View Post
    ha ha,its all good fun mate,i reckon i did the zeta just in time as the Japanese monster is in customs at the moment!
    Holy shit, I'm really looking forward to seeing that on the 590!!!! They don't come up often do they.

  8. #18
    Join Date: Sep 2014

    Location: brighton uk.

    Posts: 4,737
    I'm jamie.

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    so am i!! very very rare. i hope its not shit.
    My System
    John Wood KT88 Amp.
    Paradise Phono Stage
    Sony TTS-8000 Turntable.
    PMAT-1010 MK6 Tonearm.
    Ortofon Cadenza Bronze
    Sony X555ES Cd Player
    Yamaha NS1000m Speakers

  9. #19
    Bigman80 Guest

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    Quote Originally Posted by jamie123 View Post
    so am i!! very very rare. i hope its not shit.

  10. #20
    Join Date: Sep 2014

    Location: brighton uk.

    Posts: 4,737
    I'm jamie.

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    another update......
    after concerned comments about using Vaseline i decided to strip the arm down again to check,yes i know im a glutton for punishment!
    and what did i find in the bearings caps? yep traces of Vaseline! and thats after numerous heavy spraying with wd40 followed by ipa
    so as the arm is in bits again i thought id try 5 bearings and see if that improves things,it would seem the only difference is the bearing size and not the cups as i thought earlier,an email from moth marketing confirmed this.

    ive also learnt that having a small gap left over in the cup when the bearings are fitted is no bad thing,in fact its better than having them touching for obvious reasons,the general web view is half the bearings diameter is acceptable. so ive ordered some 1.5mm and 1.59mm bearings.

    so watch this space chaps
    My System
    John Wood KT88 Amp.
    Paradise Phono Stage
    Sony TTS-8000 Turntable.
    PMAT-1010 MK6 Tonearm.
    Ortofon Cadenza Bronze
    Sony X555ES Cd Player
    Yamaha NS1000m Speakers

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