The market requirements of various mechanical devices and instruments using rolling bearings are increasingly strict, and the requirements of conditions and performance of outer spherical bearings are increasingly diversified. In order to choose a suitable spherical bearing from a large number of structures and sizes, it is necessary to study from various angles.
In the selection of spherical bearings, the bearing structure is generally determined by considering the arrangement, installation and disassembly difficulty of spherical bearings as shafting, the space and size allowed by spherical bearings and the marketability of spherical bearings. Secondly, while a comparative study of the design life of various machinery using bearings and a variety of different endurance limits of bearings, while determining the bearing size.
In the selection of spherical bearings, only the fatigue life of bearings is often considered, and the life, wear and noise of grease bearings caused by aging of grease also need to be fully studied. Moreover, according to different uses, it is necessary to select special designed bearings for precision, NTN bearing clearance, cage structure, grease and so on. However, there is no certain sequence and rules for the selection of outer spherical bearings. The priority should be given to the conditions, performance and related matters required by bearings, especially practical.
In the production of various types of spherical bearings, there are about hundreds of processes from the blank manufacturing of rings to the completion of all parts processing, and bearing assembly is the last key process. Although the outer spherical bearing assembly is not as complex as other mechanical assembly, because bearings often play an important role in transmission and support, the running quality of bearings directly affects the performance of equipment installation and use, and perfect bearing assembly can assemble bearing parts on the basis of qualified processing of each previous process, so that the performance of bearings can be better played. This is the importance of bearing assembly. If the assembly work is not careful and meticulous, the product quality and performance of bearings will be affected.
Outer spherical bearings are precise mechanical parts, which require higher operating environment and operating standards during assembly, and require orderly work in a clean and constant temperature environment. Bearing production is a high efficiency, high precision machining, parts need to go through a long time, multiple processes to achieve quite high dimensional accuracy, rotation accuracy and surface roughness, in order to meet the standards and use of various performance requirements. To ensure that the processing accuracy of bearing parts is not broken; This requires that bearing assembly should not only be produced in a civilized way, but also that the whole assembly process should be carried out under certain technological regulations. In the process of assembling outer spherical bearings. There is also a lot of expertise and complementary computing, which requires assembly: people have to have considerable computing power and a certain level of proficiency. To meet the needs of bearing assembly work.