Cardan Joints
Cardan joint is a key component used in mechanical transmission to connect two shafts with non overlapping axes and achieve torque transmission.
According to the structure and working principle, it is mainly divided into the following types:
Rigid cardan joint
Non constant velocity cardan joint (such as cross shaft type): suitable for transmission scenarios with small angles (usually<15 °), where the instantaneous angular velocity ratio changes but the average velocity is equal. Commonly seen in automotive driveshafts.
Quasi constant velocity cardan joint (such as double joint, three pin shaft type): reduces speed fluctuations through structural optimization, and is used in scenarios such as steering drive axles that require approximate constant velocity transmission.
Constant speed cardan joint (such as cage type and fork type): It achieves strict constant speed transmission through a spherical raceway design and is widely used for connecting the driving wheels of independent suspension vehicles.Flexible cardan joint
Relying on elastic components such as rubber and polyurethane to transmit power, it has buffering and vibration reduction characteristics, and is often used in low-speed or situations that require compensation for large axial/radial deviations (such as ships and industrial equipment).
