Five core requirements for precision bearing accessories:
1.Precision fit:
The fitting of the bearing with the shaft and the housing bore must be extremely precise. Parameters such as roundness and perpendicularity must strictly follow the design requirements of the bearing. During installation, the interference of the rotating ferrule should be accurately calculated to ensure its stability at operating temperature and high speed operation, and to prevent the mating surface from slipping.
2.High-quality materials:
Precision bearings place extremely high demands on materials. The inner and outer rings and steel balls are mainly made of high-carbon chromium bearing steel, which has high hardness, strong wear resistance and good fatigue resistance. At the same time, the cage is made of lightweight and high-strength materials, such as aluminum alloy or high-strength plastic, to ensure that the bearings are lightweight and strong.
3.Precise fit clearance:
For fixed ferrules, the choice of mating clearance or interference is crucial. The optimal fit must be determined based on the working load and bearing size. A fit that is too loose or too tight can affect the accuracy of the bearing. If a small interference fit is to be used, both parts must meet a high standard of form accuracy and roughness.
4.Operational stability:
In high-speed, high-temperature working environments, the stability of bearings is particularly important. The fit of the rotating ferrule should not be too loose to prevent eccentric oscillation; However, there should be no gap in the fit of the fixed ring, so as not to deform under load and cause vibration.
5.Strict quality control:
The quality requirements of precision bearings are extremely strict, from the screening of raw materials, the monitoring of the processing process, to the testing of finished products, every link can not be ignored. Only in this way can the performance and quality of the bearings be ensured and meet the requirements of various demanding application scenarios.
In short, the requirements of precision bearings for accessories such as design and matching accuracy, material, fitting clearance, operating conditions and quality ensure the high performance and long life of the bearing.