Information for Designers of Machine ToolsOperating Principles of Rotating UnionsSelecting the Right Rotating Union for Your ApplicationMounting Tolerances Drain and Supply Hose Connections Information for Users of Machine ToolsInstallation TechniquesCoolant Filtration and MaintenanceThread Equivalence Bearing-Supported Unions“Closed Seal” Designs – when media is present during rotation1005, 1101, 1116, 1108Pop-Off® Designs – when rotation without media is possible1109, 1111 AutoSense® Designs –wh..