75mw Turbine-Generator Journal/Thrust Bearing Upgrade.
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This case history discusses the upgrade of the #1 combination journal-thrust bearing assembly in the front standard of a 75 MW turbine/generator set. The existing taper land thrust plates experienced frequent failures and the sleeve journal bearing was wearing prematurely. A combination journal-thrust assembly was designed and installed in the front standard of the turbine. This assembly incorporated fully equalized ball & socket tilting pad thrust bearings with directed lubrication and a ball & socket tilting pad journal bearing. The spherical support fit was replaced by a cylindrical support fit. The ring saddle supporting the journal housing was redesigned to be bolted to the thrust housing.
Postill, Julia; Drigant, Boris (2009). 75mw Turbine-Generator Journal/Thrust Bearing Upgrade.. Texas A&M University. Turbomachinery Laboratories. Available electronically from