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MEDVIC 연구실

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MEDVIC 연구실

MEchanical Design  and VIbration Control

Research

Groove Bearing



Air Herringbone Groove Bearing is a type of bearing that uses air as the lubricant to reduce friction, commonly employed in high-speed rotational equipment or precision devices where vibration control is essential. The herringbone groove pattern is designed to guide airflow evenly, providing stable support for the bearing's rotating shaft

Structure and Working Principle

The air herringbone groove bearing features a V-shaped pattern of grooves on the bearing surface, which channels air toward the center during rotation. This pattern creates a pumping effect that draws air into the center, forming an air film around the shaft. This air film generates its own pressure, creating a hydrodynamic support that stabilizes the shaft in the center of the bearing.

Advantages








High-Speed Stability : Since it uses air instead of oil, the bearing is not sensitive to lubrication supply or temperature variations, maintaingin stability even at high speeds.


Non-Contact and Low Friction : The air film prevents direct contact, significantly reducing friction and wear, which in turn increases the equipment's durability.


Eco-Friendly : Using air as a lubricant eliminates the need for oil supply systems, reducing maintenance costs and promoting an environmentally friendly design.


Considering these design factors holistically can help achieve optimal airflow and support for air herringbone groove bearings, enhancing their performance in high-speed, low-friction applications.