Air bearings and magnetic levitation bearings are two common non-contact bearing technologies commonly used in the industrial field to reduce friction and achieve quiet and high-speed rotation.
Air Bearings is a technology that supports rotating parts by forming an air film through Jet stream flowing through the bearing surface. Its main features include:
1. Support method: Air bearings form a gas film through high-pressure gas, causing rotating components to suspend on the gas film, achieving contactless support.
2. Friction coefficient: Due to the use of gas support, air bearings have a lower friction coefficient, reducing losses and heat generation.
3. Sensitivity: Air bearings require additional stability control systems for external vibrations and impacts.
4. Load capacity: Air bearings are usually suitable for low to medium load applications, but their support capacity for large loads is relatively weak.
Magnetic bearings are a technology that supports rotating components through the magnetic force generated by a magnetic field. Its main features include:
1. Support method: Magnetic levitation bearings use magnetic fields to generate buoyancy, causing rotating components to suspend in a magnetic field, achieving contactless support.
2. Friction coefficient: Due to the lack of physical contact, magnetic levitation bearings have a lower friction coefficient, reducing losses and wear.
3. Sensitivity: Magnetic levitation bearings can quickly respond and adjust to external vibrations and impacts through the control system.
4. Load capacity: Magnetic levitation bearings usually have high load capacity and can adapt to the requirements of large loads and high-speed rotation.
Therefore, there are certain differences between air bearings and magnetic levitation bearings in terms of support methods, friction coefficients, sensitivity, and load capacity. The selection of appropriate bearing technology needs to be determined based on specific application needs.
