OAV aerodynamic foil air bearings provide high-speed, oil-free rotational support using self-generating air films that eliminate mechanical contact, wear, and the need for external lubrication. As rotational speed increases, the compliant foil structure creates a pressurized air layer, enabling true non-contact operation with exceptional efficiency, durability, and reliability.

Designed for demanding environments, these bearings operate across a wide range of speeds and temperatures while maintaining stability and low vibration. OAV foil air bearings are ideal for turbomachinery, microturbine generators, aerospace systems, and other high-speed rotating equipment requiring maintenance-free performance.

Key Benefits

No external air supply required
Oil-free, clean operation
High-speed capability with low friction
Quiet, low-vibration performance
Wide operating temperature range
High shock and load tolerance
Maintenance-free design

Common Applications

Turbomachinery
Aircraft and aerospace systems
Microturbine generators
High-speed rotating equipment

Hybrid Aerodynamic + Aerostatic Design

OAV’s hybrid foil bearing technology combines aerodynamic and aerostatic principles to improve load capacity, damping, and system stability. This design reduces sensitivity to rotor imbalance and startup conditions, delivering smoother and more reliable performance across a wider range of operating speeds.

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Foil Design Guide

High-Speed Aerodynamic Foil Bearings for Oil-Free Rotational Systems

Aerodynamic Foil AIR Bearings

Engineered For High Speed, Oil-Free Operations

Self-generating aerodynamic air films enable true non-contact operation at high speeds, eliminating wear while delivering stable, oil-free performance in demanding environments.

FOIL AIR BEARINGS DESIGN GUIDE & SPECIFICATIONS (PDF)

Download our comprehensive guide with detailed specifications, dimensions, load capacities, and engineering data to help you select the right air bushing for your application.

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8 mm OAV Foil Thrust Air Bearing

Part # FB-T8-X47

Foil Thrust Air Bearing 8 mm ID.
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8 mm OAV Foil Journal Air Bearing

Part # FB-J8-L12

Foil Journal Air Bearing 8 mm diameter.
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13 mm OAV Foil Thrust Air Bearing

Part # FB-T13-X57

Foil Thrust Air Bearing 13 mm ID.
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13 mm OAV Foil Journal Air Bearing

Part # FB-J13-L20

Foil Journal Air Bearing 13 mm diameter.
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20 mm OAV Foil Thrust Air Bearing

Part # FB-T20-X65

Foil Thrust Air Bearing 20 mm ID.
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20 mm OAV Foil Journal Air Bearing

Part # FB-J20-L25

Foil Journal Air Bearing 20 mm diameter.
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25 mm OAV Foil Thrust Air Bearing

Part # FB-T25-X75

Foil Thrust Air Bearing 25 mm ID.
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25 mm OAV Foil Journal Air Bearing

Part # FB-J25-L28

Foil Journal Air Bearing 25 mm diameter.
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40 mm OAV Foil Thrust Air Bearing

Part # FB-T40-X120

Foil Thrust Air Bearing 40 mm ID.
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40 mm OAV Foil Journal Air Bearing

Part # FB-J40-L35

Foil Journal Air Bearing 40 mm diameter.
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Custom Design

Part # Foil Air Bearings

We provide designs that are integrated into your product and we can quickly develop a design based on the application or specific requirements. We provide detailed drawings and 3-D CAD models, can analysis complex issues associated with application from nanometer accuracy positioning to standard calculations.