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Dec 07, 2018

Bearing seals can be divided into self-contained seals and external encrypted seals. The so-called bearing self-sealing means that the bearing itself is manufactured into a sealing device. Such as bearing with dust cover, sealing ring, etc. This kind of seal occupies little space, is easy to install and disassemble, and its cost is relatively low. The so-called external encrypting sealing performance device of bearings is a sealing device with various properties manufactured inside the installation end cap and so on. The encrypted seal outside bearing can be divided into non-contact seal and contact seal. Among them, non-contact seals are suitable for high-speed and high-temperature situations, with different structural forms such as clearance type, labyrinth type and gasket type. Contact seals are suitable for medium and low speed working conditions, and commonly used are felt seals, cup seals and other structural forms.