Outer spherical bearings are now one of the most widely used bearing components in industrial production equipment, and are standardized and mass-produced by specialized production enterprises. As with other types of bearings, there are four parts: inner ring, outer ring, rolling element, and cage.

In order to ensure safe and reliable operation of spherical bearings, it is necessary to minimize friction and wear of bearings, which can effectively avoid surface pitting. Due to the failure of spherical bearings, regular lubrication operations are required for spherical bearings. The choice of lubricant for spherical bearings depends on the loading speed and temperature conditions. The lubrication methods for housing spherical bearings can be divided into oil and grease lubrication, and we should choose more appropriate lubrication under different working conditions to obtain the best performance.

It is easy to discharge lubricating grease from spherical bearings, so it can be understood as a permanent lubricant. Especially for vertical or inclined machines, preventing grease lubrication with spherical bearings can be a stumbling block to achieving results. But grease lubrication has its drawbacks. The main resistance to power loss caused by lubricating oil supply is relatively large. It is not possible to lubricate bearings with spherical sliding bearings for good cooling effect. The advantage of spherical bearing grease lubrication is that it has good adhesion and is unlikely to cause loss, as body fat does not drip. Compression is a better and better sealing method that can effectively prevent dust and corrosion of spherical bearings.