Over the past 18 years, Nelson Air has developed an extensive catalog of rotary air bearings for diverse applications such as optical grinding, roundness checking, disk drive inspection, semiconductor processing, torque testing, and many others. Because of this, in addition to offering a line of standard air bearing tables, we can provide individually customized bearings for each application. When you call us with your rotary bearing application, we will quickly adapt one of our many existing designs to fit the exact requirements. And because we are small and flexible we can do this at a price and leadtime which often beats our large competitors.

Typical Rotary Air Bearing Features:

• TIR ±5 millionths of an inch (±1 available)
• Flatness of Rotation ±5 millionths (±1 available)
• Stiffness from 50,000 lbs/in to 4,000,000 lbs/in
• Load capacity from 1 lb to 110 lbs
• Operating pressure from 30 psi to 90 psi
• Can be balanced for high speed operation
• Material: Hardcoat Aluminum, others available

Please contact us to discuss your exact needs and for more detailed specifications.

These rotary air bearings are designed for accuracy, precision and ease of use. They can be used in any orientation and are easy in integrate with motors and encoders for complete positioning solutions. We use them with simple o-ring belt drives for ultra-precision grinding and inspection in house. Please download a datasheet for more information.