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.
Stainless steel bearing cover-spacer ring is used to make space for the labyrinth bearing housing seal.
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.