1. The circumferential direction of the bearing must be well supported in order to give full play to the bearing capacity of the bearing. For this reason, both the inner and outer rings should adopt tighter cooperation. The ferrule is a thin-walled part. When the cooperation gap is large, the ferrule will be bent and deformed after being loaded, which will affect the internal load and stress distribution, resulting in stress concentration. At the same time, the deformation of the ferrule will also affect the rotation accuracy.
2. The ferrule subjected to rotational load cannot slide along the circumferential direction on the cooperation surface. However, it should be possible for a ring under a constant load to produce a slight roll, slowly changing the loaded area.
3. For the non-separable bearings supported by the floating end, a ferrule (usually the jacket) should be allowed to move axially relative to the cooperation surface, and the cooperation of the ferrule should be looser.
4. The bearing clearance should not be negative due to too much cooperation interference, or the rolling support body will be stuck.
5. The matching parts must meet the required precision. The bearing ring is a thin-walled part, and the switching error of the journal or hole will be transmitted to the raceway, which is equivalent to reducing the accuracy of the bearing.
6. The bearing is easy to install and disassemble. The rings are subject to heavy rotational loads with this roller bearing, but loose fitting is also used due to frequent assembly and disassembly.
