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 400 lb 200 lb Axial 2,400 lb 1,200 lb Tilt 6,000 lb-in 3,000 lb-in Stiffness Radial 2 lb/microinch Axial 10 lb/microinch Tilt 100 lb-in/microradian Error Motion Radial < 1 microinch Axial < 1 microinch Tilt < 0.1 microradian Total Weight 154 lb Rotor Weight 72 lb Rotor Inertia 36 oz-in-sec2 Maximum Speed 1,800 rpm Air Consumption < 3 scfm Metric 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.