240.420

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 possible - No backlash when reversing direction

PDF Data Sheet: Hydrostatic Leadscrews (240.420)

Advantages of Hydrostatic Over Ballscrews • Speed comparable to a linear motor
• Very low friction when machining, virtually frictionless during positioning
• Steps in the 0.1 micron range are possible
• 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 or stiffness even under full load and oscillating motion
• Friction does not vary when reversing direction
• Very long service life

Unique Technical Features • High accuracy when transferring rotary motion into linear motion
• Nut is suspended on hydrostatic oil pockets
• Internal flow control
• Only one hydraulic connection required
• Dimensions of leadscrew similar to ballscrew size
• No seal wear or friction
• Adaptable to a machine’s parameters:
• Axial load (can be different in both directions)
• Maximum RPM
• Required stiffness
• Viscosity and temperature of hydraulic oil


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Location: 304 North Main St, Suite 104, Rockford, IL 61101-1101 USA
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