AH Labyrinth Seal

1.A flexible contact seal is designed on the axle between the two relative rotating bodies outer end of the seal, which ensure that external substances cannot enter the inside of the seal, the bearing chamber and the roller chamber. This position is the minimum contact area of the two rotating bodies, so the rotation resistance is relatively the most minimal. The grease capacity of the bearing chamber is larger, and due to the outer end of the contact seal sealing effect is good, so that the internal grease is almost isolated from the outside air, not easy to age, will not be lost, a single injection of oil can be used during the whole life period.
2.Labyrinth seal to contain grease and keep the quality of grease, so we do not design too many labyrinth slots to reduce the rotation resistance.
3. The outer protective cover can protect the labyrinth seal and control the flexible seal from damage by external impact.
4. The elastic circlip for axle is placed between the inner and outer seals close to the bearing position, thus the inner and outer seals are controlled separately, there will be no labyrinth seal contact stuck phenomenon; The elastic back-up ring for axle is close to the bearing position, there is no hidden danger of plastic seal stress deformation, the axial force bearing capacity of the roller is strong, and the axial impact resistance is very good.