1,皮碗sealed. Oil seals are made of rubber or leather pieces bowl, put in the bearing caps, with the annular coil spring皮碗the lips pressed so皮碗close contact with the journal, the direction of sealing lips to be sealed should be directed to site. Sealed皮碗simple structure, easy installation, easy replacement, a reliable seal, but the sliding surface can not be too high in general for v <10m / s of oil or grease lubrication lubrication, and that fine journal diameter surface and polishing cars.
2, sealing ring loop carpet. Seals made blankets for the use of small circular loop carpet. Bearing trapezoidal groove stamped out, felt ring embedded trapezoidal tank in close contact with the journal. This sealing structure is simple and easy to install, but pressed edge sealing small, and difficult to regulate. General can only be used for low-speed v <5m / s and the low rate of lubricating grease oil lubrication device.