turntable bearing
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- ROLANDJAYS
- Posts: 287
- Joined: Sun Apr 14, 2013 3:48 am
turntable bearing
I have been experimenting with turntable bearings.
I have built a turntable with 1 ball bearing in the middle like most standard turntables and i have another model with a roller bearing( size 50mm diam, 16mm thick )
My question is are there any other turntables with different types of bearings than these two?
I have built a turntable with 1 ball bearing in the middle like most standard turntables and i have another model with a roller bearing( size 50mm diam, 16mm thick )
My question is are there any other turntables with different types of bearings than these two?
Re: turntable bearing
Hmm good question..I only know the technics sl 1210 has 1 bearing at the bottom I'm not sure of other company's designs, anything on google searches ?
- ROLANDJAYS
- Posts: 287
- Joined: Sun Apr 14, 2013 3:48 am
Re: turntable bearing
I have seen these before but haven't thought of using them.
.002" tir is too much when you measure 6 inches away
.1 degree of an angle will generate over .01" runout at 6" away
I already tried the taper method, it works...
.002" tir is too much when you measure 6 inches away
.1 degree of an angle will generate over .01" runout at 6" away
I already tried the taper method, it works...
Re: turntable bearing
Yeah I'm using a tapered roller bearing in my next build.
People have used Maglev bearings and air bearings for some high end stuff... I don't know much about it.
People have used Maglev bearings and air bearings for some high end stuff... I don't know much about it.
- ROLANDJAYS
- Posts: 287
- Joined: Sun Apr 14, 2013 3:48 am
Re: turntable bearing
I built a magnetic levitation bearing, but it didn't give as good a result as I thought. it would have needed much more work to be good enough.
the air bearing idea is good too, but I don't like the fact that you would have to have an air compressor somewhere making all that noise and vibration.
the air bearing idea is good too, but I don't like the fact that you would have to have an air compressor somewhere making all that noise and vibration.
Re: turntable bearing
Yeah, I was looking at this air bearing system that also included vacuum for the disk. Pretty interesting.
http://adanalog.com/index.php?page=shop.product_details&category_id=15&flypage=shop.flypage&product_id=145&option=com_virtuemart&Itemid=35&vmcchk=1&Itemid=35
http://adanalog.com/index.php?page=shop.product_details&category_id=15&flypage=shop.flypage&product_id=145&option=com_virtuemart&Itemid=35&vmcchk=1&Itemid=35
- ROLANDJAYS
- Posts: 287
- Joined: Sun Apr 14, 2013 3:48 am
Re: turntable bearing
that looks pretty fancy, but what I really want to know are specs.
I doo like the bldc motor though, 900 isn't that bad..
but again , no specs , must contact, these are for playback turntables too...
I doo like the bldc motor though, 900 isn't that bad..
but again , no specs , must contact, these are for playback turntables too...
Re: turntable bearing
Yes only for playback tables, imagine how much air you'd need to pump to support a Lyrec platter!
As for many audiophile products no specs are listed, instead claims of "best" and "highest performance" are given.
I just found it while researching possible designs to copy haha.
As for many audiophile products no specs are listed, instead claims of "best" and "highest performance" are given.
I just found it while researching possible designs to copy haha.