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.

Product examples

Tabletop diameter: 600 mm
Running precision: < 0.2 µm
RPM: 20 rpm
Axial bearing load capacity: 15 kN

Table size: Ø 750mm
Bearing running precision: < 0,5µm
RPM: 10 rpm
Axial bearing load capacity: 30 kN

Table size: Ø2000mm
Bearing running precision: < 1µm.
Vertical load capacity: 2.5 to.

Features, advantages

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

Applications

Measuring machines

Technical Data

Table diameter	Supply pressure	Concentricity and axial runout accuracy	Load capacity
DT	PP		FA
mm	bar	µm	kN

200	6	< 0.5	0.5.
300	6	< 0.2	10.0.
400	6	< 0.2	10.0.
600	6	< 0.2	15.0.
750	6	< 0.5	30.0.
1,000.	6	< 0.8	45.0.
1,200.	6	< 1.0	30.0.
1,600	6	< 1.0	45.0.
2,000	6	< 1.0	63.0.

Downloads

Brochures

Rotary Table systems

Certificates