Do you know what is the air bearings, application characteristics have?

Bearing for everyone not unfamiliar, centrifugal water pump bearing is used, you need to use other chemical water pump bearings, we often use the rolling bearing is more familiar, it is the important parts of modern machinery and equipment. What is air bearing? A, air bearing: using gas as lubricant of the sliding bearing. Commonly used gas lubricant for air, according to the needs and available nitrogen, argon, hydrogen, helium and carbon dioxide. In the gas compressor and expander and circulator, often with working medium as a lubricant. Air bearing refers to the use of the bearing pressure air film formed between the sliding surface of deputy to the bearing load bearing, work entirely by gas membrane separation between sliding surface of vice. Air bearing belongs to the sliding bearing, sliding bearing of the fluid for fluid lubrication at work, its lubricating medium of air. According to the pressure of air film forming mechanism of air bearing is mainly divided into two categories: the air dynamic pressure bearing and aerostatic bearing. Air dynamic pressure bearing the pressure of the air film is through the mutual movement of the sliding pair slide air into the region of convergence between the surface and formed, gas film roughly wedge-shaped, because the air dynamic pressure bearing does not require an external gas source, therefore, also known as & other; Since the role bearing & throughout; 。 Aerostatic bearing pressure air is compressed air by external membrane through the choke import formed between the sliding surface of vice, aerostatic bearing need to clean the external source. Second, the applications of air bearing air bearing supporting air elastic potential energy is used to the function of a new type of bearing. The only use of lubricant is the air; Thus must demand for pollution-free artifacts, or work environment, air bearing technology is ideal. In air bearing, ball bearing by air instead. Air bearing one of well known application is perhaps the hovercraft. Giant fan blowing air at the bottom of the hovercraft, through elastic rubber & other; Skirt & throughout; To prevent air escaping. Below the hovercraft produced by high pressure to support body weight, so that it floats on a cushion of air. Three, air bearing characteristics 1, wide temperature scope of application: gas can in great temperature range gas, its viscosity is influenced by temperature is small ( Viscosity at higher temperatures also increases slightly, such as temperature from 20 ℃ to 100 ℃, and the air viscosity increased by 23%) And, therefore, the application of the gas bearing temperature range can be up to - 265 ℃ to 1650 ℃. 2, wide speed range, low gas bearing friction, low temperature, the speed of up to 50000 RPM, the temperature rise not to exceed 20 ~ 30 ℃, speed is even up to 1. 3 million RPM. Aerostatic bearing can also used for low speed, even zero speed. 3, high machining accuracy requirements: in order to improve the bearing capacity of the gas bearing gas film stiffness, usually adopt bearing clearance (smaller than liquid lubricated bearing Less than zero. 015 mm) , we need to improve the parts precision accordingly. 4, low carrying capacity of dynamic pressure bearing capacity is proportional to the viscosity, the bearing capacity of gas dynamic pressure bearing only same size liquid dynamic pressure bearing a few parts per thousand. Due to the compressibility of the gas, gas dynamic pressure bearing capacity limit value, average unit load can only be added to the projection area 0. 36 million mpa. 5, low friction: as the gas was much lower than the liquid viscosity, viscosity of air at room temperature is only one over five thousand of the number 10 machine oil, and the bearing friction is proportional to the viscosity, so the gas bearing friction is lower than liquid lubricated bearing.
J&T INDUSTRY CO.,LTD., the best suppliers of domestic markets, has good faith in manufacturing.
Now you can enjoy winter cover pump with J&T INDUSTRY CO.,LTD.'s latest collection of pool cover drain pump water pump products. Do visit now, at J&T INDUSTRY.
water pump is produced by J&T INDUSTRY CO.,LTD.’s professional skills in high technology.