Hydrostatic bearing systems – wear-free, precise, with high running smoothness

Hydrostatic workpiece spindles, rotary tables, rotary axes for tool turrets or bearing components for the area of hard turning

• Very good damping properties
• Very good concentricity and axial runout accuracy
• Very high positioning accuracy
• High achievable surface quality
• Thermally stable

Hydrostatic milling spindles, rotary tables or bearing components for the area of hard milling

• High bearing resilience
• Very good damping properties
• High achievable surface quality
• Very high positioning accuracy

Hydrostatic spindle units for piston and connecting rod machining in the automotive industry

• Very high concentricity and axial runout accuracy
• Exceptionally high damping of vibrations from the machining process
• High achievable surface quality

Hydrostatic tool or workpiece spindles, rotary tables as well as bearing components for use in grinding machines

• Very good damping properties
• Very high concentricity and axial runout accuracy
• Very high positioning accuracy
• Thermally stable

Hydrostatic bearings as sleeve bearings for use in ECM machines

• Ideal for quickly oscillating movements
• No deficient lubrication for short strokes
• No bearing wear
• High bearing resilience

Hydrostatic rotary tables for coordinate measuring machines

• Very high positioning accuracy
• Drive via torque motor or belt drive

Hydrostatic bearings as breast roll bearing in paper machines

• Combined radial and axial movement possible
• Very good damping properties
• Wear-free

Hydrostatic bearings in cement mills or in test benches

• High bearing resilience
• Low friction

Hydrostatic spindles distinguish themselves by high concentricity. By the high resolution of the Lion measuring device 0,2 µm run-out accuracy is verified.

The ZOLLERN clearance compensator ensures optimum pocket pressure in the spindle unit. It is integrated into the fully hydrostatic bearing part of the spindle and the optimum pocket pressure is automatically set within the manufacturing tolerances. The patented clearance compensator is a self-regulating system with fast control behaviour and high rigidity. It is used in spindles as well as in hydrostatic rotary tables and linear guides.