Hydrostatic Universal Bearings

• Frictionless even at minute revolutions
• Transmits minute rotating motion
• No backlash when reversing direction
• Slip-stick effect is eliminated
• Wear is eliminated because there is no metal-to-metal contact during operation
• No loss of accuracy even after years of operation under full load
• No vibration as possible with bearings when ball direction is reversed
• Insensitive to dirt and contamination

Unique Technical Features

• Handles axial, radial and torque forces
• Ideal for one-sided guidance of the leadscrew
• Highly precise bearing system for the leadscrew
• Integral volume regulation
• Only one hydraulic connection needed
• Input and drain lines are on the flange
• Optional seal on one side, or labyrinth air purge
• Adaptable to a machine’s parameters:
• Axial, radial, and torque loads
• Maximum RPM
• Required stiffness
• Viscosity and temperature of hydraulic oil

Data Sheet

Application: Hydrostatic Rotary Tables
The world's largest gear and profile grinding machines use hydrostatic bearings.
Details PDF

Hydrostatic Center Bearings
- Only one radial bearing
- Moment and axial forces are carried by an axial bearing
- Integrated clamping piston and rotating oil union for a hydraulic collet....
Details PDF

Hydrostatic Lathe Spindles
- Very low friction will heat the spindle only slightly. Nearly all motor power gets to the
workpiece. Heat that is generated is moved immediately out of the spindle...
Details PDF

Hydrostatic Grinding Spindles with Integral Motors
- Very low friction will heat the spindle only slightly. Nearly all motor power gets to the
workpiece.
- Heat that is generated is moved immediately out of...
Details PDF

Hydrostatic Linear Motor Guide
The PM Flow Controller makes it possible for machine builders to easily integrate custom hydrostatic systems into both new and existing machines.
Details PDF

CBN Hydrostatic Grinding Spindle Systems
This is an example of a hydrostatic spindle designed for high speed grinding with CBN grinding wheels. The small bearing diameter in combination with high surface speed allows...
Details PDF

Hydrostatic Application Worksheet
Download the PDF data sheet for the Hydrostatic Application Worksheet
Details PDF

Hydrostatic Leadscrews
- Speed comparable to a linear motor
- Very low friction when machining, virtually frictionless
during positioning
- Steps in the 0.1 micron range are...
Details PDF

Comparison: Hydrostatic Leadscrews, Linear Motors, and Ballscrews
Design limitations and problems in ballscrew applications lead to the development of linear motors and to wear-free hydrostatic leadscrews. In
this article we introduce...
Details PDF

Advantages of Hydrostatic Over Rolling Bearings

Unique Technical Features

Data Sheet

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