There are many types of universal joints, one of which is universal joint cross . So how much do you know about universal joint cross?

The universal joint cross consists of universal joint forks, cross shafts, needle bearings, oil seals, sleeves, bearing caps and other components. The working principle is: one of the rotating forks drives the other fork to rotate through the cross shaft, and at the same time, it can swing in any direction around the center of the cross shaft. The needle roller in the needle roller bearing can rotate on its own during rotation to reduce friction. The shaft connected with the input power is called the input shaft (also called the driving shaft), and the shaft output through the universal joint is called the output shaft (also called the driven shaft). When working with an angle between the input and output shafts, the angular velocities of the two shafts are not equal, which will cause the output shaft and the transmission components connected to it to produce torsional vibration and affect the life of these components.

Universal joint cross usually requires regular maintenance, which is more troublesome, so now there is a maintenance-free bearings that can save a lot of energy.