Flexible universal joint: a universal joint with significant elasticity in the direction of torsion.

The flexible universal joint is mainly composed of rubber elastic elements (rubber disc, rubber block, rubber ring, rubber metal sleeve, etc.), bushing, bolts and centering device to ensure the dynamic balance at high speed. Its working principle is that when the torque acts on the input shaft, the torque passes through the input shaft, the three flanges on the universal joint fork and the connecting bolt, and then passes to the rubber block, and the torque acts on the universal joint flanges on the output shaft after the rubber block. Because the rubber block is elastic, a certain Angle is allowed between the two shafts.