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The seal of tire of tire recycling machine can be divided into two types: self-contained seal and external seal. The so-called bearing of tyre recycling machine comes with the seal itself to make the bearing itself a device with sealing performance. Such as bearing of waste tire shredder with dust cover, sealing ring and so on. The sealing space is small, the installation and disassembly are convenient, and the cost is relatively low. The so-called bearing-incorporated sealing performance device is a sealing device having various properties manufactured inside a mounting end cap or the like. Bearing of tyre shredder is divided into two types: non-contact seal and contact seal. The non-contact seal is suitable for high speed and high temperature applications, and has different structure types such as gap type, labyrinth and washer type. Contact seals are suitable for medium and low speed working conditions, and are commonly used in the form of felt seals and cup seals.
According to the working condition of the bearing of tyre recycling machine and the sealing degree of the working environment, various sealing forms are often used in engineering design to achieve better sealing effect. The selection of bearings for the tire recycling machine should consider the following main factors:
1, bearing lubricants and types (greases and lubricants);
2, the working environment of the bearing, the size of the occupied space;
3, the support structure of the shaft has the advantage of allowing angular deviation;
4, the circumferential speed of the sealing surface;
5, the working temperature of the bearing;
6, manufacturing costs.