Little trick, and depends how concentric the through bore in on the rotory table to begin with, you can use make a chuck centering rod for the rotory table bore to get the chuck very close with min run out as you are bolting it first down.
Hence pilot get drop into the through channel on the rotary table, T bolts left slighty loose, clamp the chuck jaws down on the pilot to pull the jaw concentric with the table, the tighten the bolts.
As for the cheap Asian rotary tables, before you buy one, try to find a tear down diagram/photo of them.
Hence what you are looking for is double suport for the drive gear rod. It's bad enough that some don't even have a clean way to remove the lash quickly, but with a single drive support on the drive rod to the bushing housing, in a short time your going to wear the single bushing out, and will be chasing your tail trying to dial out lash again.
Cheap rotary with no end drive rod support.
Rotary table with end drive rod support instead,
HV-6 clone with double support on the drive rod before the gear, bu still shake my head why they did not do a roller bearing/bushing with end support on end of the drive gear as well.
So to back it up, the Grizzly 6" table you posted is a knock off a phase II design, but the reason that is half the price, the internal machining is half the quality instead (read may be sending a couple of them back until you receiver one that even close to acceptable to begin going through the table part to clean, true, and then grease it before reassembling it to use the first time. Granted that you don't have to start with a Yuasa table (Phase II or Vertex are fine), but do know that kind of battle you are up against trying to tune a sows ear into a silk purse from the start.