Cylinder operating method, involves providing seal e.g. slide ring seal, against discharge of fluid, between ends of axial extension and bearing bell, and degassing space sealed by seal between extension and cross-head

摘要

The method involves providing supporting units in an intermediate space between a hollow cylinder and a cross-head for supporting the cylinder on the cross-head using hydraulic fluid e.g. hydraulic oil. A bearing bell is provided into which the cylinder engages by an axial extension. A bearing is axially arranged at an end of the hollow cylinder. A seal e.g. slide ring seal (25), against discharge of fluid between the lug and the cross-head is provided between ends of the extension and the bearing bell. A space sealed by the seal between the extension and the cross-head is degassed. An independent claim is also included for a roller comprising a seal.