I have owned one HW19 MK I, one MK II, two MK IV platters over the years; and now a TNT MK V platter on my TNT. I have also checked a few similar platters owned by others. Every single one had some degree of noticeable play/rocking in the bearing well. Markd51's info is correct except for the implication that lithium grease, or some other type of high-viscosity oil is not appropiate for the older non-inverted type bearings. The bearings were not machined to tight enough tolerances to make the use of high-viscosity oils/grease impractical. It is appropriate to use them; or more accurately, it can be. This per VPI's recommendation.
Again, it is most definitely worthwhile to experiment with lithium grease in these bearings. It will make the table quieter, and les bright, but potentially less dynamic. A worthwhile, and easily reversible tweak.
Again, it is most definitely worthwhile to experiment with lithium grease in these bearings. It will make the table quieter, and les bright, but potentially less dynamic. A worthwhile, and easily reversible tweak.