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High Control Efficacy, Simple Structure, Low Propeller Hub Drag, Excellent Maintainability

Bearingless Rotor Blades

United Aircraft has successfully developed the bearingless rotors with the rotor diameter respectively of 4.6 m, 6 m, and 10 m, and they have been put into use on different types of platforms, providing overwhelming support for the 4th-generation rotors.

As one of the significant symbols of the 4th-generation helicopter, bearingless rotors adopt the composite flexible beams, with hinges and bearings of the traditional rotors completed cancelled. The flapping, lead-lag, and feathering motions of blades rely on the propeller hub's support arms and elastic deformation of blades. Therefore, such blades feature high control efficacy, simple structure, low propeller hub drag, and excellent maintainability.

Product Highlights

Simple structure, light weight

Huge centrifugal force and bending moment bearable Integration of flapping, lead-lag, and torque functions

Technical Specifications

Bearingless rotors

Rotor configuration

6m

Rotor diameter

8.5%D

Distance between upper and lower rotors

540RPM

Rotor rotating speed

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