Abstract: A steam turbine construction wherein the turbine rotor shafting is mounted in bearing means located in the end walls of the turbine housing and wherein the bearings are lubricated with water condensed from the working steam supplied to the turbine. The lubricant flows in a re-circulating system tapped from the condensate-return line leading back to the boiler from the condenser after the turbine has been started and is supplying power, and an auxiliary supply of lubricant water is taken from a reserve gravity flow tank to supply water to the bearings during the starting and stopping runs of the turbine.

Abstract: An arrangement for facilitating modification of the vibrational behavior of a rotatable shaft which is supported by a segmented type of bearing in which the bearing segment supports that have predetermined built-in elastic and damping characteristics are removable for replacement with similar supports with different elastic and damping characteristics without dismantling the bearing housing. The bearing segment supports are retained in bores provided in the wall of the bearing housing and can be removed from these bores through access openings provided in the housing.