#indiasbestdealers #bestoffersindia #Qualityproducts #trustedseller #bestoffersindia #ontimeservice #RoadSafetyFirst #specialoffers #savewater #planttreessavelife #DrugFreeIndia #AirBearing An air bearing is a non-contacting system where a gas film (usually air) acts as the lubricant that separates the two surfaces in relative motion – typically this being a rotating shaft, and a stationary radial journal or axial thrust bearing. Air bearings are used in many precision machine tool applications, including precision grinders and lathes, for the production of optical lenses. The unique properties of air bearings provide for ultra-precision positioning and motion, with no lubricants or wear, making them ideal for these demanding applications. The inherent porosity of graphite makes it an ideal material for manufacturing air bearings. Our graphite maintains strict porosity control, which allows manufacturers to reliably predict and select the airflow needed to support their unique spindles. In a typical spindle compressed air enters through a port on the rear face and is fed through drillings to reservoirs surrounding each journal bearing and reservoirs positioned either side of the thrust bearings. From the reservoirs, air is fed through rows of orifices into the bearing gaps. The average film pressure is generally about 40 percent of the inlet pressure. Therefore the load capacity of a flat air bearing with one square inch of area operating at 80 psig inlet pressure is about 32 pounds (40% x 80 psig x 1 inch^2). Air bearings have played a crucial role in the development and construction of coordinate measuring machines (CMMs) and other metrology tools for decades. Since they are inherently frictionless and highly stable, air bearings play a key role in delivering the precision required in metrology equipment.