spherical air bearings

Precision Multi-Axis Motion with Zero Friction

OAV Spherical Air Bearings are engineered for ultra-precise angular motion and multi-axis positioning where frictionless performance is critical. Utilizing porous graphite air film technology, these bearings enable true non-contact operation—eliminating wear, backlash, and mechanical noise.

Designed for applications requiring smooth motion across multiple degrees of freedom, spherical air bearings provide exceptional stability, repeatability, and alignment accuracy. The concave graphite interface and precision-machined spherical element create a uniform air film that supports motion in all directions while maintaining precise control.

Manufactured in the United States using aerospace-grade materials, OAV spherical bearings deliver long-term reliability, thermal stability, and maintenance-free operation—making them ideal for demanding environments where precision cannot be compromised.

What are spherical air bearings used for in aerospace?

Spherical air bearings are used in aerospace applications such as satellite testing, inertial navigation systems, and precision motion platforms. They enable frictionless multi-axis movement and highly accurate angular positioning.

Where can I buy spherical air bearings in the US?

Spherical air bearings can be purchased from specialized manufacturers such as OAV Air Bearings, a US-based manufacturer located in Princeton, New Jersey, offering both standard and custom solutions.

Are OAV spherical air bearings used in aerospace testing?

Yes, OAV Air Bearings manufactures spherical air bearing solutions used in aerospace testing applications, including satellite simulation, precision alignment systems, and inertial testing platforms.

Common Applications

Spherical air bearings are widely used in high-precision applications requiring accurate angular motion and multi-axis control, including:

• Satellite and spacecraft testing platforms
• Inertial navigation and gyroscope systems
• Precision alignment and angular positioning
• Optical and metrology systems
• Aerospace and advanced research environments

Spherical Air Bearings FAQ

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Engineered For Multi-Axis Precision Motion

Porous graphite spherical air bearings create a uniform pressurized air film, enabling frictionless, non-contact motion with exceptional angular accuracy, stability, and repeatability across multiple degrees of freedom.

25 mm Spherical Air Bearing

Part # OAV025SHR

25 mm spherical air bearing designed for aerospace testing, inertial navigation systems, and precision multi-axis motion applications. Features a concave graphite surface and precision half-sphere ball. Manufactured with aerospace-grade materials.

100 mm Spherical Air Bearing

Part # OAV100SHR

100 mm spherical air bearing designed for aerospace testing, inertial navigation systems, and precision multi-axis motion applications. Features a concave graphite surface and precision half-sphere ball. Manufactured with aerospace-grade materials.

150 mm Spherical Air Bearing

Part # OAV150SHR

150 mm spherical air bearing designed for aerospace testing, inertial navigation systems, and precision multi-axis motion applications. Features a concave graphite surface and precision half-sphere ball. Manufactured with aerospace-grade materials.

Custom Design

Part # Spherical 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.