Turntable


Is a good idea to put Metal Lube on turntable,s spindle?
miguel1972

Showing 7 responses by lewm

Thanks.  I guess the problem with low rpm would especially apply to an inverted bearing turntable. I am not sure that the braking effect of the grease bearing in an early Garrard 301 is totally analogous with friction but others refer to that constant drag as a way to stabilize the speed.
Bruce, Thanks for your expert input.  You wrote, "Also because TT bearings operate at low rpm bearing "failure" is a possibility and in this scenario reduced friction of the surfaces can be helpful."

Why does operation at low rpm's enhance (rather than diminish) the chance for "failure"?  Or maybe I do not understand how you are defining the word "failure".  Also, except in the case where the bearing is deliberately designed to increase drag on the motor so as to help maintain constant speed (e.g. the grease bearing in a Garrard 301), when would reduced friction NOT be helpful? Thanks.

So far, Helomech offered the most cogent point.  Make sure your turntable does not have sintered bronze bearings, by all means.  And then don't use the stuff regardless.

Friction in a piston engine, which lives at very high piston velocities and where the metals are known, is a whole different thing from what's happening in a turntable.
Walker Audio SST silver paste works,too, but that’s a different application.
Miguel, I think the same cautionary notes apply.  In this case, you'd want to know that the sealer does not interact with the actual lubricant in a bad way.  Anyway, for a turntable bearing, I would also wonder why sealing the pores in the metal parts is critically important; the parts in the bearing bear forces across their contact surfaces.  Do the pores, such as they may be, enter into this?  I dunno.
Mr. M, I will answer the question you posed to EBM by referring you to my post just above which mentions that an unknown complex lubricant might contain additives that could be corrosive for the ball bearing or the thrust pad. To know whether that could be a problem you would need to know the composition of the ball bearing and of the thrust pad and of the new lubricant that you want to try. In this case, we know none of these things. After that, you would need to consider the actual new lubricant and whether it is indeed superior to known good lubricants for the turntable bearing.
It's another lubricant, no more, no less.  Maybe it is superior to other common choices for turntable bearings.  Maybe not.  I think Miguel raised an interesting question, but none of us is qualified to say yea or nay, since none of us has used it for this application.  But it's not "magic".  The first thing that I would verify before using it on a turntable is whether it is corrosive for either the bearing (which is typically a ball made of an exotic metal) or the thrust plate.  If not, have fun.