yuasa rotary table made in china

I feel for ya. Went through this same issue years ago. They can be pricey lumps of metal for some reason. I"ve read about some OK Chinese stuff & also some horror stories. Its such a crap shoot if you cant see it in person. If it was only clean out casting grit, repack the grease & tweak a bit that would be fine. But if the gears are cut crappy or platen & surfaces are not ground properly then its an irritating boat anchor because difficult to replicate those components. And RT"s are heavy PITA parts to return weight/shipping wise through online vendors sight unseen. Vertex makes pretty good stuff IMO. Just watch out for the tricky label "like Vertex" brands that are creeping in. Dividing plates... useful for sure really depends on what you see yourself making. The only consideration is if you say no now & years later want them, there"s a chance you might not see the correct set, they can have nuances how they mount. Tailstock - again depends on what you are making. Long skinny things in horizontal mode need rotating support just like a lathe but there you could defer or get away with a clone since they are so adjustable. But sometimes the combo kit deals work out to the accessories being not a lot of extra $$, it all depends.

FWIW, I bought a six-inch rotary table a few years ago. As far as I can tell, it was made somewhere in eastern europe. It had some tight spots and a little backlash in the gears, and the scale engraving was crude. I can"t remember what the price was, but I know it was below $400.00. (Including a set of indexing plates.) I wanted a better one, but the budget was needed for other items. For the fraction of my shop time I need a rotary table, I considered the poor quality, low price workable.

I also bought a 4-inch rotary table from Grizzly a while back with the intent of making it indexable via stepper motor and arduino control, but that project did not work out and the table itself is just too hard to use: Another future project to sort out.

Rotary table in market mainly includes 4 kinds of mechanism that is worm gear, roller cam, DD driver and harmonic structure. The following is the introduction:

1. worm gear: it’s one of  the most popular structrue in NC rotary table  because of its irreversibility and costs.The worm is generally made of bronze, but the wear resistance is poor. In order to improve the service life, some manufacturers use the alloy steel.

3.DD motor: it’s the most efficient rotary table with the highest precision. It has the highest precision because it has no mechanical structure, which is directly driven by motor , no reducer. It has high technical difficulty and high price. It is generally used for five axis machine tools.