There are corresponding sealing devices installed on both ends of the bearing, but many people do not know what the sealing device does. Let's take a look at what the sealing device does for thin-walled bearings.

1. Keep the grease (oil) inside the bearing from escaping during use, and ensure that the bearing is in a lubricated state. 2. Protect the dust or harmful gases from the bearing from entering the bearing cavity. Damage to the bearing.

The sealing structure of the seal is varied, so the sealing effect is different. There is a gap between the sealing ring and the rotating shaft, which is called non-contact sealing. The smaller the clearance is, the better the sealing effect is, but the smaller the rotation speed of the shaft is allowed; the opposite is the opposite. There is no gap between the seal ring and the rotating shaft, which is called contact seal. The contact area of the contact lip of the seal ring is larger, the better the sealing effect is, but the smaller the rotation speed of the shaft is allowed, the opposite is the opposite. The main research content of the sealing technology is to research and develop the corresponding sealing device applied under different working conditions, and the compatibility of the sealing ring material with the corresponding grease.