When the shaft rotates, the injected air forms a gas film layer between the two surfaces,
allowing it to rotate without making contact.
Usually these systems are referred to as aerostatic bearings or aerodynamic bearings.
The Air Bearing Spindle employs the aerostatic bearing system.

Aerostatic Bearing fitted Air Spindle operation

Air Bearing Spindle Strengths

• Ultra Precision
• High Speed
• Increased Tool Life
• Improved Surface Roughness
• Long Bearing Life
• Low Thermal Growth
• Reduced Maintenance
• Reduced Vibration
• Keep Clean