VPI bearing oil/grease?

Frogman, I owned P.Lurnes Audiomeca TT with inverted bearing and had no idea what lubricant to use. But I own now Kuzma Stabi Ref. with inverted bearing and I orderd lubricant from Kuzma. I got the oil and not some grease.
It is dependant of the bearing construction as I think or understand the problem. But I am not a technical guy so no claims reg. the 'truth'.
Regards,

All,

Remember, that in the case of inverted bearings ... well, they're upside down.

It's been a long, long time (20+ years) since I've had one in my posession, and the issue of lubrication didn't come up.

Typically, inverted bearings have some sort of jeweled thrust bearing which doesn't require lube. As far as the side walls are concerned (in general), the oil needs to be viscuous enough to not seep out the bottom.

Unless someone has an innovative means of controlling the flow of the lube out the bottom of an inverted bearing, it appears to me that it would mandate a very thick oil, which in turn would mandate loose tolerances.

I'd love to hear more about this ...

Cheers,
Thom @ Galibier

Being an inverted bearing, how would it work if a pool of light oil were deposited in the bearing such that when the shaft was inserted the oil would work its way up the and out of the top of the bearing. A small felt concentric ring around the bearing would absorb any excess oil and keep the top of the bearing lubricated. The shaft itself would spin in a very thin pool of oil. It wouldn't take much oil to do the job.

I'm looking at an early TNT bearing as I write this. It might work though there would be some "settling time" involved to get the shaft all the way down to the point where the ball bearing is in contact with the thrust plate.

Any thoughts (as I build my table)?

Too much oil= soft muddy sound. The bearing will keep itself lubricated with the proper oil/grease. Simply re-apply occasionally.

I agree if it's thick oil or grease. But would light oil be a different story?