This from Van den Hul's FAQ's. I have no idea where to get it from?
171 Q: Do I need to change the oil in the bearing of my turntable ?
A: Each bearing wears in a way. So a change of oil after a good cleaning of all mechanical parts involved is an option. In my own turntable I change the bearing oil every 2 years.
Lately I use an oil doped with ceramic (zirconium oxide) marbles (1 micron diameter each). This means that there are always very small marbles between the rotating and stationary metal parts. So no metal-to-metal contact anymore. And that is what we need after all.
(This oil works for all non air-cushioned metal-to-metal turntable bearings and if requested is available from us).
171 Q: Do I need to change the oil in the bearing of my turntable ?
A: Each bearing wears in a way. So a change of oil after a good cleaning of all mechanical parts involved is an option. In my own turntable I change the bearing oil every 2 years.
Lately I use an oil doped with ceramic (zirconium oxide) marbles (1 micron diameter each). This means that there are always very small marbles between the rotating and stationary metal parts. So no metal-to-metal contact anymore. And that is what we need after all.
(This oil works for all non air-cushioned metal-to-metal turntable bearings and if requested is available from us).