A universal joint, (universal coupling, U-joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint) is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion.

TS10 steel bellows coupling

Features of TS9 encode coupling

TS7Z series precision lock is suitable for the joint between long shafts and hubs and can transmit bigger torque.They can replace couplings in some mechanical transmission if the shaft diameter and precision are the same.