Pindac, You've mentioned on other occasions an issue with sideways movement of the spindle particularly with DD TTs, and I responded then (and now) that while I would never say "never", such a problem must be very very rare with DD turntables, since there is no side force on the spindle during use, in contrast to the case for BD and idler-drive turntables. I don't doubt the one case you cite, but that table must certainly have been abused in some way over the course of time. As to the idea to check the bearing housing of any used TT in general for wear and proper lubrication, I completely agree.
Yamaha GT-2000 from Japan or local TD-125?
(Cross posted)
Im wondering if anyone has ordered one off Ebay. The Japanese websites seem pretty legit. I’m really sold on these, I’d say it’s my dream table for now.
Also have a chance to pick up a fully serviced Thorens TD-125 with an SME 3009 locally. Arm was rewired, but have not been quoted a price since the seller wants to wait until the work is complete. I’m guessing around the same as GT2000, likely low to mid 1k’s
Any constructive thoughts are much appreciated.
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I don't cite one case, I have had experience of more than one Platter Spindle Bearing with a very noticeable sideways movement. In conjunction with my own experiences I personally know others who have encountered it as well. My own interest has prompted me to look further and there are plenty of cases discussed on the internet. What is not so common is the most recent methodology I have adopted to be the corrective measure. The interest has lead onto other corrective measures to be developed and on the table to be put in place. |
Dear @brecchi : I gave you as an GT 2000 owner a gentleman that is not, my mistake. You need to contact with @theophile that's a way experienced owner of the Yamaha GT 2000 and he is an Agoner. Do it you a favor and wait to see if he chime here on what you need to know.
R. |
It is not always the sideways movement that is discovered, as stated on previous occasions. When taking the Bearing Assembly apart, the Ball at the Thrust Interface, usually discovered to be a loose fit, or interference fit in the base of the Platter Spindle are on occasion found to be damaged with a Spalling and even worse a Scribing on the Ball Surface. Either one of these being present is an indicator for Metal Particulate being free to migrate and is now included in the surfaces where there are interfaces between Sacrificial and Non-Sacrificial Materials. Such an environment has the capability to cause unwanted damage to the non-sacrificial material. It is an even worse condition when the housing is arid dry in relation to lubricant, loose and migrating metal particulate damage in this type of environment will need substantial skills to correct the damages being witnessed. Again, it is each to their own, if the want of an individual is to use a $2K to $5K Cart' on TT, knowing it has such a condition, or potentially has such a condition, then that for me is just fine. |
- 42 posts total