Comparison Of Preloading Mode And Rotational Speed Between Ceramic Ball Bearing And All Steel Bearing
Comparison Of Preloading Mode And Rotational Speed Between Ceramic Ball Bearing And All Steel Bearing
2021年12月7日
NSK Anti Creep Bearing, Anti Creep Bearing Characteristics And Installation Matters
NSK Anti Creep Bearing, Anti Creep Bearing Characteristics And Installation Matters
2021年12月8日

Introduction Of Hydrostatic Gas Lubricated Bearing

Gas lubricated bearing is a bearing that uses the viscosity of gas to increase the pressure of gas in the gap, so as to suspend the object. According to the principle of pressure generation, gas lubricated bearings can be divided into dynamic pressure type, static pressure type and film pressure type. At present, hydrostatic gas lubricated bearings are widely used.

Introduction Of Hydrostatic Gas Lubricated Bearing

Hydrostatic gas bearing is to produce a stable pressure in a relatively closed space by throttling the compressed gas with a certain pressure through the throttling effect of the throttler. Changing the thickness of the gas film can change the pressure distribution in the space.

Hydrostatic gas lubricated bearings are divided into radial bearings, thrust bearings and ball bearings.

1. Hydrostatic gas ball bearing


Aerostatic ball bearing is produced to solve the support problem of ground simulated space flight device. It is widely used in inertial equipment, such as gyroscope and attitude control device.


2. Surface throttling hydrostatic gas bearing


It processes shallow grooves on the bearing surface to form secondary throttling to improve the stability of the bearing. Multi groove surface closure bearing, including rectangular groove, T-shaped groove, triangular groove, etc.


3. Multi air static pressure gas ball bearing


Porous throttle bearing is made of porous material, which produces throttling effect by the fluid impedance of porous material. Because fine air supply holes are evenly distributed on the whole bearing surface, the bearing capacity and stiffness are better.
Porous throttling hydrostatic gas bearing and surface throttling type were put forward at the same time. The throttle is usually sintered from metal materials such as bronze, aluminum, lead and tin and non-metallic materials such as graphite, alumina and silicon carbide.