The Types of Roller Seal Designs

  The types of roller seal designs mainly include the following:

  1. Non-contact labyrinth seal: This type of seal is divided into two forms: axial seal and radial seal. The radial dimension of the axial seal is relatively small, resulting in less resistance during rotation, and it has good waterproof and dustproof performance. The radial seal has a larger radial dimension, resulting in greater resistance during rotation and poorer waterproof and dustproof performance.

  2. Contact seal: This type of seal prevents external substances from entering the bearing by direct contact, but it may increase the rotational resistance of the bearing.

3. Combined Sealing: This sealing method combines multiple sealing elements, such as inner and outer sealing rings, bearings, and bearing housings, to enhance the sealing effect through multi-layered protection.

  4. Special Material Seals: Seals made from special materials, such as those that are resistant to high temperatures and corrosion, to adapt to specific working environments.

  5. New sealing structures: With the development of technology, many new sealing structures have emerged, such as split-type sealing rings, which are improvements on traditional seals to enhance sealing performance and ease of assembly.

When selecting the type of roller seal, factors such as the working environment, bearing type, and cost need to be considered and evaluated comprehensively.