Published on Professional Instruments Company (http://www.airbearings.com)
Model 10R BLOCK-HEAD®
By pico
Created 10/23/2007 - 22:34

High capacity and ultra-high stiffness make the model 10R ideal for turning or grinding heavy workpieces, or as an ultra-rigid toolpost pivot. When integrated with a high-power motor, the model 10R forms the heart of a state-of-the-art optical-surface generator.

Specifications (at 150 psi)

Load Capacity Ultimate Working
Radial 1780 N 890 N
Axial 10700 N 5350 N
Tilt 680 N-m 340 N-m
Stiffness Radial 350 N/micrometer
Axial 1750 N/micrometer
Tilt 11.3 N-m/microradian
Error Motion Radial < 25 nanometers
Axial < 25 nanometers
Tilt < 0.1 microradian
Total Weight 680 N
Rotor Weight 320 N
Rotor Inertia 0.254 kg-m2
Maximum Speed 1,800 rpm
Air Consumption < 85 L/min
English Specifications


View/Download drawing in PDF format


Load capacity and stiffness are approximately linear with air pressure.

Ultimate load capacity is measured when metal-to-metal contact is made across the bearing surfaces. Working load capacity is half of the ultimate load capacity. Rotor weight must be included as part of total spindle load.

Axial and tilt loads are supported by the same bearing surfaces. Consequently, a load applied in one mode reduces the other mode proportionally.

High speed or high inertia applications require rotor containment. Maximum speed is dependent on application. Consult Professional Instruments for further information with regard to speed.



Professional Instruments Company
7800 Powell Road • Hopkins, MN 55343 USA
Phone (952) 933-1222 • Fax (952) 933-3315 • pico@airbearings.com