The highest speed requirement for bearings used in automobiles is turbine charger bearings, which are required to have good acceleration reactivity, low torque, low vibration and low temperature rise under high speed rotation. Because of its low temperature rise at work, it can reduce the amount of lubricating oil, so the oil stirring resistance is reduced, the bearing torque is reduced, and the speed is increased. In addition, it is used by rail vehicles and its durability and reliability under harsh conditions have been proven.
Motor use it can achieve permanent insulation, motor used for deceleration and energy saving devices, internal leakage can cause the phenomenon of arc discharge.
3. Aero engines
In the aero-engine fuel pump, it can operate in liquid oxygen and liquid hydrogen for long periods of time, and it has been proven to survive 50 launches without damage.
4. Aircraft parts
The aircraft industry has used ball screws with ceramic balls in aircraft flaps and has experimented with hybrid ceramic bearings in gas turbine engines.
Ceramic bearing advantages?
1. it has the advantage of zero corrosion. Even in corrosive working environment, it can still be used without obstacles.
2. It can be unaffected by any sudden increase or decrease in temperature.
3.the biggest characteristic of ceramic bearings is that they will not be deformed by force, because the elastic modulus of bearings is higher than steel.
4.the density of ceramic rolling ball is much lower than steel, so the weight is naturally much lighter, so you can reduce the friction of rotating outer ring centrifugal, and the service life of natural ceramic bearings is longer.
To sum it up:
Advantages: Ceramic bearings can be used for high temperature, insulation, corrosion resistance, no lubrication occasions.
Disadvantages of ceramic bearings: difficult processing, high cost.
Post time: Jun-03-2019