The role of bearing gasket

Bearing gasket gasket form and role

Bearing seals mainly refers to the two end surfaces of rolling bearings, installation of sealing effect of the device. Bearing sealing with the industrial development and gradually into people's field of vision, is in recent years for people to pay attention to a technology, in the development of bearing sealing before all bearings are open bearings.

Bearing seal form:

Bearing seal seal ring structure is different, there are differences in the sealing effect. Bearing seal sealing ring and the rotor shaft between the gap, known as non-contact bearing seal, this sealing form is the smaller the gap sealing effect is better, but the gap will reduce the allowable rotating speed of the rotor shaft, and vice versa is the larger the gap sealing effect is worse, the rotor shaft allowable rotating speed is higher.

Bearing seal seal ring and the shaft between the gap does not exist, known as the contact seal. Bearing seals using contact sealing type, sealing ring contact lip and shaft contact surface determines the sealing effect, the larger the contact surface sealing effect is better, but the lower the allowable rotational speed of the rotor shaft, and vice versa is the contact sealing surface is smaller the sealing effect is poorer, but the allowable rotational speed of the rotor shaft is higher.

Role:

Bearing seals keep the inside of the rolling bearing and the outside world is basically in isolation, rolling bearing internal lubricating oil, grease added to the loss of a variety of substances is very small, and lubrication effect has been greatly enhanced, so bearing seals to a large extent to maintain the lubrication of the bearing state.

Another role of the bearing seal is to isolate the bearing inside the outside world in all kinds of material contact, reduce the dust, harmful gases and other substances into the bearing cavity of the chances of reducing the bearing inside the formation of impurities because of the various damage. From this aspect, bearing sealing can relatively enhance the service life of the bearing.