(adsbygoogle = window.adsbygoogle || []).push({});
Air Bearings
- An air bearing is a non-contacting system where a gas film (typically air) acts as the lubricant that separates the two surfaces in relative motion.
- Air bearing technology offers real advantages to applications where the demand for accuracy, speed and reliability is crucial.
- Air bearings avoid the traditional bearing-related problems of friction, wear, and lubricant handling, and offer distinct advantages in precision positioning and high speed applications.
There are basically two types of air bearing:
- Aerostatic Bearing
- Aerodynamic Bearing
Aerostatic Bearing
- A separate external supply of air is fed under pressure between the two surfaces being kept apart.
- The pressure inside the gap creates the load carrying properties which are limited only by the available supply line pressure and material strength.
- They have found popular use in grinding, machining and micro positioning applications where full performance at zero speed and the absence of friction is essential.
Aerodynamic Bearing
- Aerodynamic or self-acting bearings, the air film is created by the relative motion of two mating surfaces separated by a small distance.
- As the speed increases, a velocity induced pressure gradient is formed across the clearance. The increased pressure between the surfaces creates the load carrying effect.
- The load capacity is dependent on the relative speed at which the surface moves and therefore at zero speed, the bearing supports no load.
Related Article: AIR BEARING SEMINAR REPORT AND PPT
(adsbygoogle = window.adsbygoogle || []).push({});
Need any Project or any Help? Leave us a comment