IEEE Draft Standard for Hydraulic Turbine and Generator Shaft Couplings and Shaft Runout Tolerances

This standard does not include data on shaft stress limits, materials, or bolt tensioning For historical purposes, the legacy shaft dimensional requirements of superseded IEEE Standard 810-1987 are included in Annex A for use by hydroelectric plant owners, operators and designers involved in the disassembly and re-assembly of hydraulic turbines and generators. These legacy systems, primarily installed in North American facilities, generally employ US customary units of measurement.