There's a wide-ranging lineup of Nikken Standard CNC Rotary Table Series to hold work pieces of diameters from φ 105 to φ 1000 The Standard Type is able to use vertically or horizontally depending on the application (except for some models).
The heart of Nikken CNC Rotary Table is its carbide worm system which is an independent double thrust and radial bearing system.
Carbide Worm Screw Carbide worm screw (Material :V grade carbide),
hard and strong against high speed rotation, is used
with ultra heavy duty, maintaining the high accuracy
semi-permanently.
Comparing with the traditional worm system(steel
worm screw and phosphor/aluminum bronze worm
wheel),wearing of worm wheel is largely reduced
and rotary table can be used for longer years,
resulting in great cost-down.
For better impact capability, the special alloy steel worm screw is used for the worm system of the small tooth module. Harden Worm Wheel The material used for the NlKKEN worm wheel is
custom made steel, specially hardened and
ion-nitrided on the teeth to eliminate the friction and gear wear.
Unique "Bearing system" Independent Double Thrust and Radial Bearing System
NlKKEN bearing system allow for more points of contact versus conventional cross roller bearings, resulting in smooth and accurate rotation.
Thrust: Tubular Rollar Bearings Tubular thrust bearings are pre-loaded for rigidity, and dampen vibration.
Radial: Needle Roller Bearings "Hand picked and matched" needle roller bearings between rotary table body and table spindle are implemented for the high accuracy and rigidity.
Audited Supplier 
){kind=link}