Crossings propeller shaft - an important part of the driveline and is an intermediate step in the hinge of unequal angular velocities. Due to high quality thermal cross "BAUTLER" possess high strength. All crosses are tested for hardness and geometry, metallographic control and mechanical tests on the static strength. Also implemented a multi-stage quality control in production process, including the control of manufacturing in the final stage of production. Long term operation provided by the presence of high-quality set of seals, additional lubricating devices, closed protective cap, locking rings, high-quality lubricant. The use of frogs "BAUTLER" reduces unwanted vibration and provides high efficiency in the transmission of torque.