Since the structure and working mechanism of the joint bearing are completely different from that of the rolling bearing, the joint bearing has its own technical characteristics and maintenance requirements.
Operating temperature
The allowable working temperature of the joint bearing is mainly determined by the matching materials between the sliding surfaces of the bearing, especially the plastic sliding surface of the self-lubricating joint bearing, its load-carrying capacity will decline at high temperatures. For example, when the sliding surface material of the lubricated joint bearing is paired with steel/steel, the allowable operating temperature depends on the allowable operating temperature of the lubricant. But for all lubricating and self-lubricating joint bearings, they can be used within the temperature range of -30 degree - plus 80 degree and maintain the correct bearing capacity.
inclination
The inclination angle of joint bearings is much larger than that of general adjustable centering rolling bearings. It is very suitable for use in supporting parts with low concentricity requirements. The inclination angle of joint bearings varies with the size, type, sealing device and support form of the bearing. The inclination range of radial joint bearings is 3 degree -15 degree , the inclination range of angular contact joint bearings is 2 degree -3 degree , and the inclination range of thrust joint bearings is 6 degree -9 degree .
Cooperate
In any case, the selected fit of the joint bearing must not cause uneven deformation of the ferrule. The selection of the nature and grade of the fit must be determined according to the bearing type, supporting form and load size and other working conditions.
Loading and unloading
The assembly and disassembly of joint bearings should follow the following principles, that is, the force applied by assembly and disassembly cannot be directly transmitted through the spherical sliding surface. In addition, auxiliary loading and unloading tools, such as sleeves, detachers, etc., should be used to directly and evenly apply the loading and unloading force applied by the outside to the matched ferrule, or use auxiliary methods such as heating for loading and unloading without load.
installation
When assembling the joint bearing series, it is necessary to pay special attention to the position of the dividing surface of the outer ring. In order to prevent the coincidence from directly acting on the dividing surface, the dividing surface must be maintained at a right angle to the coincidence direction.
lubricating
When the load and the speed generated by the swing motion are very small, the oil-feeding joint bearing can be operated without lubrication. Nevertheless, under normal circumstances, grease must be replenished regularly.