Aerostatic rotary tables
The aerostatic rotary tables from ZOLLERN impress with their durability and a high concentricity and axial runout accuracy. The freedom from friction at low speeds prevents slip stick and allows maximum positioning accuracy.
For aerostatic rotary tables, moving parts and housing are separated from each other by an air gap, independent of the load or sliding speed. There is no direct contact. Sliding bodies or the like are not required.
Features
Combined radial-axial bearing
Bearing surfaces with special synthetic resin sliding layer for the best possible emergency running properties
Advantages
Concentricity and axial runout accuracy up to < 0.2 µm
Calculative unlimited service life
No ball reversal jump due to rolling element deflections when the direction of rotation is reversed
Friction-free at low speeds, therefore maximum positioning accuracy; no stick-slip effect