Couplings, It forms connections between drive shafts and driven shafts to transmit rotational motion and torque. Universal joints, It transmits rotation and torque through shafts that can be at a variable angle relative to each other. For higher demands, friction bearing and needle bearing designs are available, as well as various materials. Angular gears also called conical gearboxes , It transmits and directs torques and rotational movements. Worm gear reducers They are very robust yet lightweight. All couplings, joints, and gears can be used in a wide variety of applications.