ProductsPrecision Bearings
Precision Bearings
Professional Instruments manufactures the world's most precise air bearing spindles and rotary tables. These instruments deliver nanometer-level accuracy for metrology, semiconductor, and defense applications where traditional mechanical bearings cannot meet performance requirements.
Air Bearing Spindles
Ultra-precision air bearing spindles with sub-nanometer error motion for the most demanding metrology and machining applications.
Key Specifications
- Axial error motion: < 5 nm
- Radial error motion: < 10 nm
- Speed: up to 10,000 RPM
- Custom mounting configurations
Applications
Diamond turningRoundness measurementOptical fabricationCalibration standards
Rotary Tables
Air bearing rotary tables with arc-second level accuracy for indexing and continuous rotation applications.
Key Specifications
- Angular accuracy: < 0.1 arc-sec
- Wobble: < 0.05 arc-sec
- Integrated encoder options
- Clean room compatible
Applications
Gear metrologyAngle calibrationWafer inspectionCoordinate measurement
Custom Motion Systems
Engineered multi-axis air bearing systems combining linear and rotary stages for complex measurement and manufacturing tasks.
Key Specifications
- Multi-axis configurations
- Granite or steel bases
- Environmental isolation options
- Application-specific design
Applications
Semiconductor lithographyTelescope mirror fabricationFree-form opticsUltra-precision machining
Interested in Precision Bearings?
Contact our specialists for pricing, availability, and custom configurations.