crossing of the shaft in sealed contact with the gas in a casing for a high voltage electrical installations isolated the gas compressed

摘要

The shaft bushing has a replaceable outer seal (8) with O-rings (810, 820). A ball bearing (7) is arranged further inwards in the housing (1). The ball-bearing rings (72, 73) are installed on the shaft (3) and on the housing (1) in a sealing manner, with a push fit, and their gap (71) is sealed by a rubber sealing ring lip (70). In the event of the outer seal (8) being removed, there is no need to empty the installation, because of the at least approximately sealed ball bearing (7). IMAGE