The RBR Ring, working as a buffer ring has been specially designed to work as a main seal, to be used in combination with asymetrical lip seals (see RSA range).
Its function is to maintain working pressure for the second seal. It does not provide full sealing effect so an oil chamber will thus form between the two seals.
Thanks to the specail profile of the RBR ring, the growing pressure in the space will be released into the cylinder once a certain value is achieved. It works as a valve.
It has also been desinged to compensate for pressure peaks.
For further details, including assembly instructions, and a full list which includes other sizes available please download our Artic Catalogue.
