Constant velocity joints or homokinetic joints are used for the continuous transmission of rotational movements and torques. They transmit the rotational movement of a driving shaft to a shaft to be driven without changing the speed or torque. The transmission takes place independently of the speed, torque, or the value of a diffraction angle and independently of the speed at which this diffraction angle changes. Constant velocity joints with a diffraction angle of 90° are equipped with specially shaped gear pairs, which are held together by a spring-loaded inner joint. In this joint transmission, a diffraction angle of 90° is achieved while the shafts to be connected to fixedly mounted bevel- and spur gear pairs are connected to each other, so that no spring-loaded inner joint is needed. Therefore, high engine speeds and high torques can be transmitted.