Hydrostatic gas-lubricated bearing is introduced

Gas lubrication bearings is to use the gas viscosity and increase the pressure of the gas in clearance, bearing to object is suspended. According to the principle of stress, gas lubricated bearing type can be divided into dynamic pressure, static pressure and pressure membrane. Due to the more widely used is a static pressure gas lubricated bearing, so the bearing network made knowledge sharing of hydrostatic bearing. Static pressure gas bearing, it is a certain pressure of compressed gas through choke throttling action, in a relatively closed space within a stable pressure. Change the thickness of gas film size, can change the pressure distribution inside the space. Static pressure gas lubricated bearing into radial bearings, thrust bearings, ball bearings. 1, the static pressure gas ball bearing aerostatic bearings is in order to solve the problem of space flight simulator on the ground support. Widely used in the inertial device, such as gyroscope and attitude control device. 2, the surface throttle static pressure gas bearing it is shallow groove in the bearing surface processing, the formation of secondary throttling, in order to improve the stability of the bearing. By intercepting the bearing groove surface including rectangular groove, T slot, triangular groove, etc. More than 3, air quality, and the static pressure gas ball bearing porous throttle bearing is porous material, the fluid impedance throttling effect of porous materials. Because of the uniform distribution of the bearing surface micro for porosity, so the bearing capacity and stiffness are good. Porous throttle static pressure gas bearing with surface throttling type at the same time, the choke is usually made with bronze, aluminum, lead, tin and other metal materials and give priority to with graphite, aluminum oxide, silicon carbide and other non-metallic materials of powder sintering.