There are many universal joints commonly used in automobile transmission systems. Among them, there is a universal joint called a precision universal joint. The precision universal joint can be provided with keyways, hexagonal holes, and square holes according to requirements. Allow the angle between the two shafts to be changed within a limited range according to the needs of the work. There are two types with sliding bearing and needle bearing, according to user requirements. With needle roller bearings, the dynamic load is high and the bearing clearance is small.
The precision universal joint is used in transmission applications where the angle between two axes on the same plane of the connection space is β≤45°. It can be divided into single cross-type, double cross-type, retractable type, and flange type. It has the characteristics of large transmission torque, long service life, and wide application range. Its application especially provides favorable conditions for the technological transformation of the metallurgical industry and the upgrading of mechanical products. In the middle, a block body and a sliding bearing can be used to transmit large torque, and the use of needle roller bearings can increase the speed, theoretically reaching 4000 rpm. The special design can reach 10,000 revolutions per minute.
In recent years, the universal joint manufacturer has developed rapidly, and many problems have also appeared, but it has been continuously improved.