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The factors need to be considered for bearing seals
Dec 14, 2018

Bearings are a kind of commonly used mechanical hardware products. Good bearings need to have excellent sealing performance during use. At present, the seals of bearings can be divided into two types: self-contained sealing and external sealing. Generally, the self-contained sealing is relatively simple and the cost is also relatively low; and the external sealing performance device is a sealing device with various properties inside the end cap. Some factors need to be considered in the sealing process to ensure that the sealing performance is better. 

The factors that need to be considered for bearing external sealing are:

1. Bearing lubricant (grease and lubricating oil);

2. The working environment of the bearing and the size of the occupied space;

3. Advantages of the support structure of the shaft, allowing angular deviation;

4. The circumferential speed of the sealing surface;

5. The working temperature of the bearing;

6. Manufacturing costs.

According to the working conditions of the bearing and the requirements of the working environment for sealing degree, we often use various sealing forms in engineering design to achieve a better sealing effect.