Double bearing labyrinth seal (DS)
DS Double seal
The DS (double seal) is a combination of a CS(centrifugal seal) together with a CC PTFE seal and has been developed for bearings used in abrasive environments. The DS seal combines the advantages of two seals in a single seal set. CS seal means that the underlying CC seal has extra protection against abrasive particles.
While using the DS seal, the installation length increases
When the DS seal is required in a bearing unit with a continuous shaf (cover side), the built-in length is greater. Because space has to be made in the bearinghousing by using an SR spacer ring.
Examples of grease diagrams using DS bearing labyrinth seals
English