Rubber BA ring

• The BA type is a further development of the lip seal. It has the advantages of high elastic O-ring and lip sealing material wear resistance. This special seal is mainly used for traveling equipment because of its special device, an O-ring assembly. This O-ring ensures the pre-compression of the seal lip under low pressure or vacuum conditions, which is necessary for sealing performance. The sealing force is essentially independent of changes in temperature and will guarantee the necessary amount of pre-compression even if some degree of wear occurs. The lip is loaded due to an increase in system pressure, which is transmitted to the lip through the O-ring of compression deformation.