Aircraft bearings are very varied.

According to customers to reduce bearing weight, reduce environmental pollution and high performance, the bearing system becomes more complex and requires higher reliability and quality control.

Design theory and industry development trend of jet engine spindle bearing.

With the rapid growth of emerging markets and the global expansion of low-cost airlines, the demand and sales of commercial aircraft have grown steadily.

Model aircraft engine first only two high temperature ceramic ball bearings, the market price is generally about 300.

Secondly, the combustion chamber is too simple, low combustion efficiency, high fuel consumption, the turbine blade has no cooling device, no perfect lubrication cooling system, and the structure is too simple.

In order to reduce friction, high-speed turbine engines generally use full floating bearings, which can only transfer torque, friction to the minimum, Angle contact ball bearing is only used to withstand other torque axial thrust mainly by the thrust bearing.

The engine blade is mainly composed of composite materials, and the compressor blade does not have much requirement.

Lulubrication and airway in the engine shaft.

There is an airway between the turbine blade and the air guide blade. With small holes made from the laser on the blade surface, a gas film is formed on the blade surface to separate the high temperature gas.