Precautions For The Use Of Imported Bearings

As we all know, bearings are precision parts, and the price is also very expensive. It is troublesome to maintain and complicated to produce. Therefore, it is difficult for us to understand bearings, and imported bearings are also very complicated. , Many people do not know about imported bearings, let's introduce the relevant knowledge of imported bearings,

 1. The burning interference of the rotating ferrule should also be small within the possible range. As long as the influence of thermal expansion at the working temperature and the influence of centrifugal force at the highest speed are ensured, the creeping or sliding of the tight-fitting surface will not be caused. According to the size of the working load and the size of the bearing, the fixed ring selects a very small clearance fit or interference fit. Too loose or too tight is not conducive to maintaining the original precise shape.

 2. The main shaft using paired double angular contact ball bearings is mostly light in load. If the fit interference is too large, the internal axial preload will be significantly larger, which will cause adverse effects. The main shaft of the double row short cylindrical roller bearing and the main shaft of the tapered roller bearing have a relatively large load, so the interference is relatively large.

 3. If the bearing is running at high speed and the working temperature is high, special attention should be paid to the fit of the rotating ferrule not too loose to prevent eccentric vibration, and the fit of the fixed ferrule should not have gaps to prevent the ferrule from being under load. Deforms and excites vibrations.