What are advantages of bearing?

What are advantages of bearing? Bearing is a kind of important mechanical foundation, has the excellent properties of metal bearing can not reach. Bearing has high temperature resistant, cold resistant, corrosion resistant, magnetoelectricity insulation resistance, oilless self-lubrication, high rotation speed. Can be used in extremely harsh environment and the special operating mode, can be widely used in aviation, spaceflight, navigation, petroleum, chemical industry, automobile, electronics, metallurgy, electric power, textile, pumps, medical equipment, scientific research and national defense military and other fields, is the new materials of high-tech products. Bearing ring and rolling body with all materials, zirconium oxide ( ZrO2） , silicon nitride ( 文中介绍) , silicon carbide, 原文如此) Three, retainer in materials such as ptfe, nylon 66. Bearing has the following advantages: 1, due to the low density than steel rolling balls, more much lighter weight, so the external ring spinning the centrifugal effect can be reduced by 40%, thus greatly extend the service life. 2, due to the elastic modulus is higher than steel, when the stress is not easy to deformation, thus to improve work speed, and achieve higher precision. 3, since almost afraid of corrosion, is suitable for rolling bearings in harsh conditions with corrosive medium. 4, the influence of heat bilges cold shrink is smaller than steel, therefore, when bearing clearance must be permissible bearing in more severe working environment temperature change. ( Return] A: import bearings under the true and false judgment method a: hybrid bearing several advantages