Universal joint bearing is a mechanical structure that USES ball head connection to realize different coaxial power transmission. It is an important part of automobile bearing. The combination of universal joint and transmission shaft is called universal joint transmission device.

Classification of universal joint bearings: constant velocity universal thrust ball bearing joint, constant velocity universal joint, ball cage universal joint, tee universal bearing joint, double factory joint, etc.The bearing of universal joint is divided into constant velocity universal thrust ball bearing joint, constant velocity universal joint, ball cage universal joint, tee universal joint, double factory universal joint, etc.

The working principle of universal joint bearing is the linear bearing in the vertical position, and the horizontal axis plane is perpendicular to the movable axis.In this case, the linear velocities at the connection points between the movable fork and the cross shaft, and between the drive fork and the cross shaft connection points are equal in the plane of the cross special bearing.The velocity projection from the drive fork to the horizontal plane.Because it is difficult to satisfy this condition when using the frame of independent suspension thrust roller bearing, the relative position of the transmission does not change.Speed inequality achieves as little speed as possible.Unequal speed of 10 axis universal joint.When the angular velocity of the drive shaft is not uniform in one period, the speed of the drive shaft is fast and slow.If the drive shaft rotates at the same angular speed, that is, when there is an Angle between the drive shaft and the drive shaft, the cardan joint of a single cross shaft is not equal to the speed.The Angle between the two shafts of the first universal joint and the ball bearing is equal to the Angle between the two shafts of the second universal joint.The constant speed transmission condition of the output shaft and the input shaft of the transmission shaft is realized by the universal joint of the double cross shaft.The movable fork is in a horizontal position and the shaft surface of the cross bearing is perpendicular to the driving shaft.The velocity projection from the moving fork to the horizontal plane.The bearing drive fork of the first universal joint is in the same plane as the active fork of the second universal joint.The speed of the main drive shaft shuts down the bearing system.The greater the Angle of intersection between the two shafts, the greater the rotational speed, the worse the unequal rotational speed of the drive shaft.